Today's Message Index:
----------------------
1. 01:42 AM - Re: Oil shut-off valve (Richard Goode)
2. 07:15 AM - Re: Oil shut-off valve (Roger Kemp M.D.)
3. 09:49 AM - Re: Re: CJ6 remote oil filter kits (Gill Gutierrez)
4. 03:28 PM - Re: generator intermittent (Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E)
5. 03:37 PM - Re: Oil shut-off valve (Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E)
6. 08:26 PM - Re: Oil shut-off valve (Eric Wobschall)
Message 1
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| Subject: | Re: Oil shut-off valve |
I'm reasonably sure that NO Yak 50s had a "parking brake" from
manufacture.
Those that now do will usually have a modified 52 brake lock fitted.
Richard
Richard Goode Aerobatics
Rhodds Farm
Lyonshall
Hereford
HR5 3LW
United Kingdom
Tel: +44 (0) 1544 340120
Fax: +44 (0) 1544 340129
www.russianaeros.com
----- Original Message -----
From: Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E
To: yak-list@matronics.com
Sent: Sunday, September 19, 2010 10:55 PM
Subject: RE: Yak-List: Oil shut-off valve
Point, MALS-14 64E" <mark.bitterlich@navy.mil>
Doc, I believe most 50's originally came with the "parking brake"
feature, but they were REMOVED by the Russians, for some reason like our
version of an "AD". The man who would know all about that would be
Richard Goode. He knows ALL the different updates to that airplane! I
think there might have been a FOD or some other safety issues dealing
with it. That is a wild A__ guess based on something I read ages and
ages ago. Check with him.
Wouldn't surprise me to find your aircraft unsafe. HA! Just
kidding Doc!
Jan, it is not an issue with me. I have hydraulic TOE BRAKES. They
work even when the air pressure is at ZERO. Make wheel landings MUCH
easier. Probably the best mod I have seen on this aircraft and the work
FLAWLESSLY. The mod also put on Cleveland wheels (I can now use
Goodyear tires) and disk brakes.
Mark
________________________________
From: owner-yak-list-server@matronics.com on behalf of Roger Kemp M.D.
Sent: Sun 9/19/2010 10:56 AM
To: yak-list@matronics.com
Subject: RE: Yak-List: Oil shut-off valve
<viperdoc@mindspring.com>
Danged, guess I got lucky when my 74 came with a parking brake leaver
on the
stick like those found in the back seat of a 52. Who says the
experimental
show did not exist in the DOSAF?!
Doc
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Jan Mevis
Sent: Sunday, September 19, 2010 1:57 AM
To: yak-list@matronics.com
Subject: RE: Yak-List: Oil shut-off valve
I concur with that, and I use my small mod only for starting up the
aircraft. When needed I can add another prime or two, without worrying
that
the aircraft might jump forward. You never know who might be foolish
enough
to stand in front of the prop ... even after shouting a loud "prop
cleaar
...".
Jan
PS: I would NEVER leave an aircraft alone with a running engine, and
parking
brakes set, like some do.
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Yak Pilot
Sent: zondag 19 september 2010 5:33
To: yak-list@matronics.com
Subject: RE: Yak-List: Oil shut-off valve
Actually Jan, I don't believe in parking brakes. I personally think
they
are an accident looking to happen.
Mark
--- On Sat, 9/18/10, Jan Mevis <jan.mevis@informavia.be> wrote:
> From: Jan Mevis <jan.mevis@informavia.be>
> Subject: RE: Yak-List: Oil shut-off valve
> To: yak-list@matronics.com
> Date: Saturday, September 18, 2010, 3:45 AM
> "Jan Mevis" <jan.mevis@informavia.be>
>
> For a parking brake in my 50, I use something very simple:
> a velcro strap
> (like the ones used to tie up network cables) with which I
> hold the brake.
> When ready to depart, I simply unlock the brake by removing
> the strap
> (without undoing it) and then shift it on the stick. (If
> this is unclear I
> 'll make a photo and post it to the list). I leave it on
> the stick all the
> time. It can't become an FOD while flying because your hand
> is in the way.
>
> Jan
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com
> [mailto:owner-yak-list-server@matronics.com]
> On Behalf Of Bitterlich, Mark G
> CIV Det Cherry Point, MALS-14 64E
> Sent: vrijdag 17 september 2010 6:13
> To: yak-list@matronics.com
> Subject: RE: Yak-List: Oil shut-off valve
>
> Det Cherry Point,
> MALS-14 64E" <mark.bitterlich@navy.mil>
>
> Sukhoi's don't have a parking brake. Neither does my
> 50. :-) But I have
> toe hyd brakes on my 50 with Cleveland wheels and brakes.
>
> Mark
>
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com
> [mailto:owner-yak-list-server@matronics.com]
> On Behalf Of Eric Wobschall
> Sent: Thursday, September 16, 2010 17:07
> To: yak-list@matronics.com
> Subject: Re: Yak-List: Oil shut-off valve
>
<eric@buffaloskyline.com>
>
> I set the brake when I'm pulling through. At least, it
> helps the rolling
> forward factor.
>
>
> On Sep 16, 2010, at 10:09 AM, Bitterlich, Mark G CIV Det
> Cherry Point,
> MALS-14 64E wrote:
>
> CIV Det Cherry
> > Point, MALS-14 64E" <mark.bitterlich@navy.mil>
> >
> >
> > Before starting the engine after some rather extensive
> work, a good
> > friend of mine was pulling the prop through when the
> engine
> > started. The prop struck him taking a good chunk
> out of the blade
> > as well as his knee and leg. The gent fell to
> the ground and the
> > aircraft started rolling forward. I was standing
> there and actually
> > saw all this happen and ran out and stopped the
> aircraft from
> > moving. After he was pulled away by other folks
> at the airport I
> > went to the cockpit and tried to shut down the
> engine. Both MAGS
> > were already OFF. I then went to pull the fuel
> shut-off handle but
> > it was actually tied to another handle marked OIL SHUT
> OFF. So by
> > pulling the fuel handle, I would also be shutting off
> the oil. Not
> > exactly the same design Vic has, but the same
> results.
> >
> > We all tend to think of things in our aircraft always
> working the
> > way they should. Obviously sometimes they
> don't. Our M-14's are
> > shut off by turning off the mags. The mags
> are turned off by
> > providing a GROUND to a "P" lead. All that needs
> to happen is for
> > one of those wires to break and the engine will not be
> able to be
> > shut down by the normal method. Switch failure,
> wire failure,
> > whatever. The engine will not shut off.
> This leaves the Emergency
> > Fuel Shut-Off as the only real method of securing the
> engine.
> > However, when you pull this handle, the engine does
> not immediately
> > shut off, it runs for awhile. If you have your
> oil shut-off valve
> > connected so that it also shuts off with the Emergency
> Fuel Handle,
> > then you will be running your engine without oil.
> >
> > To finish my particular story, I did just that.
> I pulled the shut-
> > off handle out, the engine kept running and I then
> watched the oil
> > pressure dropping to zero. I shoved the handle
> back in because I
> > just could not stand to ruin an engine.
> Especially THIS engine.
> >
> > After chocking the airplane, I manually grounded the
> left mag which
> > killed the engine. The "P" lead grounding wire
> was open to the
> > switch.
> >
> > Mark Bitterlich
> >
> > P.s. Dennis, I do not believe in pulling the
> emergency fuel shut
> > off handle after every flight. I personally
> believe that the
> > pressure carb should have fuel to it at all times to
> help prevent
> > diaphragms from drying out. However, I do
> believe it testing it
> > every once in awhile! :-)
> >
> >
> >
> >
> > -----Original Message-----
> > From: owner-yak-list-server@matronics.com
> [mailto:owner-yak-list-server@matronics.com
>
> > ] On Behalf Of Eric Wobschall
> > Sent: Thursday, September 16, 2010 9:23 AM
> > To: yak-list@matronics.com
> > Subject: Re: Yak-List: Oil shut-off valve
> >
> > I have also heard varying opinions about whether or
> not the fuel
> > valve should be shut off regularly. Opinions?
> >
> > On Sep 16, 2010, at 8:20 AM, A. Dennis Savarese
> wrote:
> >
> >
> >
> > Jim Kimball Enterprises in
> Zellwood, FL has been selling an oil
> > shut of kit for quite some time. The valve
> interlocks with a
> > microswitch which is wired to the air start button/air
> start valve.
> > If the valve is closed, the engine can not be started
> because the
> > microswitch remains engaged by the lever on the shut
> off valve.
> http://www.jimkimballenterprises.com/web/m14p.php
> > Slide down the page to the 6th item.
> > Dennis
> >
> >
> >
> > ----- Original
> Message -----
> > From: Vic
> <mailto:vicmolnar@aol.com>
> > To: yak-list@matronics.com
> > Sent: Thursday,
> September 16, 2010 5:38 AM
> > Subject:
> Yak-List: Oil shut-off valve
> >
> > --> Yak-List
> message posted by: "Vic" <vicmolnar@aol.com>
> >
> > Hello,
> > to stop oil
> draining into the crankcase I came to a solution
> which
> > works great on the Yak 18T so far. As you can see on
> the photos, I
> > added a ball valve into the feed hose to the oil pump
> on the right
> > side of the fire wall where the hose forms a U-shape.
> The lever on
> > the ball valve is connected to the lever of the petrol
> tap on the
> > left side via push-pull rod, so when you close the
> petrol after
> > engine shut-down, you shut the oil at the same time.
> No more need to
> > drain the crank case before start. You just cannot
> forget to turn on
> > the oil as you cannot miss that petrol has to be
> opened in the
> > cockpit, as both valves are connected by pushrod. I
> added a safety
> > spring to the ball valve, pulling in the
> "open"position, in case,
> > something should break.
> > There may be the
> need for some minor re-routing of oil hoses
> for a
> > straight pushrod between both valves but it can be
> done. I don=C2=B4t
> > know if this goes for 52s as well. Maybe there is need
> for an
> > intermediate lever and two pushrods to clear
> obstacles, but the
> > system seems reasonably failsafe to me.
> >
> > Vic
> >
> >
> >
> >
> > Read this topic
> online here:
> >
> >
http://forums.matronics.com/viewtopic.php?p=312598#312598
> >
> >
> >
> >
> > Attachments:
> >
> >
http://forums.matronics.com//files/oil_shutoff_valve_125.jpg
> >
> >
> > p;
> Navigator Photoshare, and
> href="http://www.matronics.com/Navigator?Yak-List
> >
">http://www.matronics=================
=======
<http://www.matronics==================
======/> <;
> via the Web
> > href="http://forums.matronics.com <http://forums.matronics.com/>
">http://forums.matronics.com <http://forums.matronics.com/>
> > _p;
> generous bsp;
> href="http://www.matronics.com/contribution
> >
">http://www.matronics.com/c===============
=
> >
> >
> >
> >
> >
> >
> >
>
href="http://www.matronics.com/Navigator?Yak-List">http://www.matronics
.com/
> Navigator?Yak-List
> > href="http://forums.matronics.com
<http://forums.matronics.com/> ">http://forums.matronics.com
<http://forums.matronics.com/>
> >
>
href="http://www.matronics.com/contribution">http://www.matronics.com/c
ontri
> bution
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
>
>
>
>
>
>
>
>
>
>
>
>
>
> Forum -
> FAQ,
> - MATRONICS WEB FORUMS -
> List Contribution Web Site -
> -Matt
> Dralle, List Admin.
>
>
>
>
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Message 2
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| Subject: | Oil shut-off valve |
Copy Richard. Thanks. As I thought since my stick looks exactly like the
one
in the 52 RCP I assumed that some RU backyard engineering took place.
Still
a nice feature to have to starts and run ups. Again common sense must
prevail. Start with brake locked, stick full aft, throttle at idle or
barily open, and run up to 70% for mag check after CHT/oil in normal
range.
Stick aft standard for tail draggers starts and runups.
Doc
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Richard Goode
Sent: Monday, September 20, 2010 3:38 AM
Subject: Re: Yak-List: Oil shut-off valve
I'm reasonably sure that NO Yak 50s had a "parking brake" from
manufacture.
Those that now do will usually have a modified 52 brake lock fitted.
Richard
Richard Goode Aerobatics
Rhodds Farm
Lyonshall
Hereford
HR5 3LW
United Kingdom
Tel: +44 (0) 1544 340120
Fax: +44 (0) 1544 340129
www.russianaeros.com
----- Original Message -----
From: Bitterlich, Mark G CIV Det Cherry Point,
<mailto:mark.bitterlich@navy.mil> MALS-14 64E
Sent: Sunday, September 19, 2010 10:55 PM
Subject: RE: Yak-List: Oil shut-off valve
Point,
MALS-14 64E" <mark.bitterlich@navy.mil>
Doc, I believe most 50's originally came with the "parking brake"
feature,
but they were REMOVED by the Russians, for some reason like our version
of
an "AD". The man who would know all about that would be Richard Goode.
He
knows ALL the different updates to that airplane! I think there might
have
been a FOD or some other safety issues dealing with it. That is a wild
A__
guess based on something I read ages and ages ago. Check with him.
Wouldn't surprise me to find your aircraft unsafe. HA! Just kidding
Doc!
Jan, it is not an issue with me. I have hydraulic TOE BRAKES. They
work
even when the air pressure is at ZERO. Make wheel landings MUCH easier.
Probably the best mod I have seen on this aircraft and the work
FLAWLESSLY.
The mod also put on Cleveland wheels (I can now use Goodyear tires) and
disk
brakes.
Mark
________________________________
From: owner-yak-list-server@matronics.com on behalf of Roger Kemp M.D.
Sent: Sun 9/19/2010 10:56 AM
Subject: RE: Yak-List: Oil shut-off valve
<viperdoc@mindspring.com>
Danged, guess I got lucky when my 74 came with a parking brake leaver on
the
stick like those found in the back seat of a 52. Who says the
experimental
show did not exist in the DOSAF?!
Doc
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Jan Mevis
Sent: Sunday, September 19, 2010 1:57 AM
Subject: RE: Yak-List: Oil shut-off valve
I concur with that, and I use my small mod only for starting up the
aircraft. When needed I can add another prime or two, without worrying
that
the aircraft might jump forward. You never know who might be foolish
enough
to stand in front of the prop ... even after shouting a loud "prop
cleaar
...".
Jan
PS: I would NEVER leave an aircraft alone with a running engine, and
parking
brakes set, like some do.
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Yak Pilot
Sent: zondag 19 september 2010 5:33
Subject: RE: Yak-List: Oil shut-off valve
Actually Jan, I don't believe in parking brakes. I personally think
they
are an accident looking to happen.
Mark
--- On Sat, 9/18/10, Jan Mevis <jan.mevis@informavia.be> wrote:
> From: Jan Mevis <jan.mevis@informavia.be>
> Subject: RE: Yak-List: Oil shut-off valve
> To: yak-list@matronics.com
> Date: Saturday, September 18, 2010, 3:45 AM
> "Jan Mevis" <jan.mevis@informavia.be>
>
> For a parking brake in my 50, I use something very simple:
> a velcro strap
> (like the ones used to tie up network cables) with which I
> hold the brake.
> When ready to depart, I simply unlock the brake by removing
> the strap
> (without undoing it) and then shift it on the stick. (If
> this is unclear I
> 'll make a photo and post it to the list). I leave it on
> the stick all the
> time. It can't become an FOD while flying because your hand
> is in the way.
>
> Jan
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com
> [mailto:owner-yak-list-server@matronics.com]
> On Behalf Of Bitterlich, Mark G
> CIV Det Cherry Point, MALS-14 64E
> Sent: vrijdag 17 september 2010 6:13
> To: yak-list@matronics.com
> Subject: RE: Yak-List: Oil shut-off valve
>
> Det Cherry Point,
> MALS-14 64E" <mark.bitterlich@navy.mil>
>
> Sukhoi's don't have a parking brake. Neither does my
> 50. :-) But I have
> toe hyd brakes on my 50 with Cleveland wheels and brakes.
>
> Mark
>
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com
> [mailto:owner-yak-list-server@matronics.com]
> On Behalf Of Eric Wobschall
> Sent: Thursday, September 16, 2010 17:07
> To: yak-list@matronics.com
> Subject: Re: Yak-List: Oil shut-off valve
>
<eric@buffaloskyline.com>
>
> I set the brake when I'm pulling through. At least, it
> helps the rolling
> forward factor.
>
>
> On Sep 16, 2010, at 10:09 AM, Bitterlich, Mark G CIV Det
> Cherry Point,
> MALS-14 64E wrote:
>
> CIV Det Cherry
> > Point, MALS-14 64E" <mark.bitterlich@navy.mil>
> >
> >
> > Before starting the engine after some rather extensive
> work, a good
> > friend of mine was pulling the prop through when the
> engine
> > started. The prop struck him taking a good chunk
> out of the blade
> > as well as his knee and leg. The gent fell to
> the ground and the
> > aircraft started rolling forward. I was standing
> there and actually
> > saw all this happen and ran out and stopped the
> aircraft from
> > moving. After he was pulled away by other folks
> at the airport I
> > went to the cockpit and tried to shut down the
> engine. Both MAGS
> > were already OFF. I then went to pull the fuel
> shut-off handle but
> > it was actually tied to another handle marked OIL SHUT
> OFF. So by
> > pulling the fuel handle, I would also be shutting off
> the oil. Not
> > exactly the same design Vic has, but the same
> results.
> >
> > We all tend to think of things in our aircraft always
> working the
> > way they should. Obviously sometimes they
> don't. Our M-14's are
> > shut off by turning off the mags. The mags
> are turned off by
> > providing a GROUND to a "P" lead. All that needs
> to happen is for
> > one of those wires to break and the engine will not be
> able to be
> > shut down by the normal method. Switch failure,
> wire failure,
> > whatever. The engine will not shut off.
> This leaves the Emergency
> > Fuel Shut-Off as the only real method of securing the
> engine.
> > However, when you pull this handle, the engine does
> not immediately
> > shut off, it runs for awhile. If you have your
> oil shut-off valve
> > connected so that it also shuts off with the Emergency
> Fuel Handle,
> > then you will be running your engine without oil.
> >
> > To finish my particular story, I did just that.
> I pulled the shut-
> > off handle out, the engine kept running and I then
> watched the oil
> > pressure dropping to zero. I shoved the handle
> back in because I
> > just could not stand to ruin an engine.
> Especially THIS engine.
> >
> > After chocking the airplane, I manually grounded the
> left mag which
> > killed the engine. The "P" lead grounding wire
> was open to the
> > switch.
> >
> > Mark Bitterlich
> >
> > P.s. Dennis, I do not believe in pulling the
> emergency fuel shut
> > off handle after every flight. I personally
> believe that the
> > pressure carb should have fuel to it at all times to
> help prevent
> > diaphragms from drying out. However, I do
> believe it testing it
> > every once in awhile! :-)
> >
> >
> >
> >
> > -----Original Message-----
> > From: owner-yak-list-server@matronics.com
> [mailto:owner-yak-list-server@matronics.com
>
> > ] On Behalf Of Eric Wobschall
> > Sent: Thursday, September 16, 2010 9:23 AM
> > To: yak-list@matronics.com
> > Subject: Re: Yak-List: Oil shut-off valve
> >
> > I have also heard varying opinions about whether or
> not the fuel
> > valve should be shut off regularly. Opinions?
> >
> > On Sep 16, 2010, at 8:20 AM, A. Dennis Savarese
> wrote:
> >
> >
> >
> > Jim Kimball Enterprises in
> Zellwood, FL has been selling an oil
> > shut of kit for quite some time. The valve
> interlocks with a
> > microswitch which is wired to the air start button/air
> start valve.
> > If the valve is closed, the engine can not be started
> because the
> > microswitch remains engaged by the lever on the shut
> off valve.
> http://www.jimkimballenterprises.com/web/m14p.php
> > Slide down the page to the 6th item.
> > Dennis
> >
> >
> >
> > ----- Original
> Message -----
> > From: Vic
> <mailto:vicmolnar@aol.com>
> > To: yak-list@matronics.com
> > Sent: Thursday,
> September 16, 2010 5:38 AM
> > Subject:
> Yak-List: Oil shut-off valve
> >
> > --> Yak-List
> message posted by: "Vic" <vicmolnar@aol.com>
> >
> > Hello,
> > to stop oil
> draining into the crankcase I came to a solution
> which
> > works great on the Yak 18T so far. As you can see on
> the photos, I
> > added a ball valve into the feed hose to the oil pump
> on the right
> > side of the fire wall where the hose forms a U-shape.
> The lever on
> > the ball valve is connected to the lever of the petrol
> tap on the
> > left side via push-pull rod, so when you close the
> petrol after
> > engine shut-down, you shut the oil at the same time.
> No more need to
> > drain the crank case before start. You just cannot
> forget to turn on
> > the oil as you cannot miss that petrol has to be
> opened in the
> > cockpit, as both valves are connected by pushrod. I
> added a safety
> > spring to the ball valve, pulling in the
> "open"position, in case,
> > something should break.
> > There may be the
> need for some minor re-routing of oil hoses
> for a
> > straight pushrod between both valves but it can be
> done. I don=C2=B4t
> > know if this goes for 52s as well. Maybe there is need
> for an
> > intermediate lever and two pushrods to clear
> obstacles, but the
> > system seems reasonably failsafe to me.
> >
> > Vic
> >
> >
> >
> >
> > Read this topic
> online here:
> >
> > http://forums.matronics.com/viewtopic.php?p=312598#312598
> >
> >
> >
> >
> > Attachments:
> >
> > http://forums.matronics.com//files/oil_shutoff_valve_125.jpg
<http://forums.matronics.com/files/oil_shutoff_valve_125.jpg>
> >
> >
> > p;
> Navigator Photoshare, and
> href="http://www.matronics.com/Navigator?Yak-List
> >
">http://www.matronics=================
======
<http://www.matronics==================
======/> <;
> via the Web
> > href="http://forums.matronics.com <http://forums.matronics.com/>
">http://forums.matronics.com <http://forums.matronics.com/>
> > _p;
> generous bsp;
> href="http://www.matronics.com/contribution
> >
">http://www.matronics.com/c===============
=
> >
> >
> >
> >
> >
> >
> >
>
href="http://www.matronics.com/Navigator?Yak-List
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| Subject: | Re: CJ6 remote oil filter kits |
Barry,
PurePower made a similar STC's spin filter with 100% flow through.
Cleanable element with magnets to remove iron particles. It has same micron
filtering as paper filters. Unit is pricey at $250 but screws on in place
of paper spin-on. I have used this unit for over a year.
Gill
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of barryhancock
Sent: Friday, September 17, 2010 10:01 PM
Subject: Yak-List: Re: CJ6 remote oil filter kits
<bhancock@worldwidewarbirds.com>
We exclusively use the ADC filter system. It is the best performing filter
on the market. We have also made several "kits" for customers including
everything needed for installation. I am in the process of taking my spin
on filter system in favor of the ADC. It's a bit more expensive than a spin
on kit, but much better technology and more convenient.
Happy Flying,
Barry
--------
Barry Hancock
Worldwide Warbirds, Inc.
(909) 606-4444
www.worldwidewarbirds.com
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=312820#312820
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| Subject: | generator intermittent |
Disconnect all three wires from the generator.
Make some wires up that have terminals on the ends, and connect one to the negative
lead of the generator. Make sure it is at least 12 gage wire, and better
yet 10 gage. Keep the wires short... no longer than 6 or 7 feet. Just enough
to reach the ground. Get a KNOWN GOOD 28 volt battery that can flow at least
10 amps of current.
Hook the other wire to the middle terminal of the generator. Assuming this is
an M-14 generator, but I think CJ's are the same. In any case you should have
three terminals. PLUS and MINUS are big, and the third is the FIELD and it
should be smaller.
Again, hook one wire to the MINUS side of the generator, and connect that to the
minus wire on the battery.
Hook the other wire to the FIELD or middle, or smaller terminal. Now take the
end of THAT WIRE and hold it against the PLUS side on the BATTERY for about 10
to 15 seconds MAXIMUM.
You do this WITH THE ENGINE NOT RUNNING BY THE WAY!
This puts a magnetic field back into the field winding.
You can do this more than once.... but usually if it does not work after the second
time, it was either never the problem to begin with, or you have a totally
bad generator.
But with your problem this is where I would start.
If after doing this, you still have a problem, you then need to do more troubleshooting.
There are several methods. One is to test the generator using a backyard test
procedure that you have to be very careful with.
This time you take off the field wire, and the plus wire off the generator. Leave
the negative wire connected.
Now connect a home made jumper wire between the field wire and the plus wire on
the generator.
Now connect a volt meter to the generator connected to the plus and minus wire.
Start the engine. SLOWLY SLOWLY SLOWLY increase engine rpm. You should see a
smooth increase in voltage out of the generator as you increase engine rpm. It
will climb to 28 vdc quickly. Bring it up to 35 volts or so and make sure it
reaches that and puts out steady output.
Now bring it to idle and shut if off like NOW.
Realize, that when doing this, you have TOTALLY BYPASSED ANY VOLTAGE REGULATION!
If you run up the engine too high, the generator might easily fry itself.
So be careful! But if it passes THIS test, then it is likely that there is nothing
wrong with your generator.
Don't do this test right away.
Flash the field first.
Then hook it all back up and test the aircraft normally.
If it fails again, run the second test.
If that test passes, then we go to the next step and that is testing the voltage
regulator and the 200 RELAY assy.
Lots of fun.
Mark
P.S. Did I mention that these tests are done at your own risk? And that if you
screw them up things can get very ugly?
Best of luck.
________________________________
From: owner-yak-list-server@matronics.com on behalf of Jon Boede
Sent: Sun 9/19/2010 7:15 PM
Subject: RE: Yak-List: generator intermittent
Um... uh... ok. How do I do that? :-)
----------------------------------------
> Subject: RE: Yak-List: generator intermittent
> Date: Sun, 19 Sep 2010 18:27:15 -0400
> From: mark.bitterlich@navy.mil
> To: yak-list@matronics.com
>
>
> Flash the field on the generator first. That is the easiest first thing to do
and you just might get lucky.
>
> Mark
>
>
> ________________________________
>
> From: owner-yak-list-server@matronics.com on behalf of Jon Boede
> Sent: Sat 9/18/2010 4:20 PM
> To: yak-list@matronics.com
> Subject: Yak-List: generator intermittent
>
>
> I have a stock CJ-6A and the generator works about half the time... some flights
it comes online at 1,000 rpm, some flights when the RPM gets higher, and some
flights not at all.
>
> Once it starts working it seems to stay working.
>
> I've looked at the brushes and they seem fine. All other electrical connections
seem ok.
>
> Any suggestions as to what to check next?
>
> Thanks,
> Jon
Message 5
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| Subject: | Oil shut-off valve |
You are very clearly advocating the use of parking brakes and are convinced that
you have good ideas for using them. And there is no real right or wrong here,
only a difference of opinion. It is not about experience levels... I don't
put myself up on any pedestal, unless we are talking about a field I am a qualified
professional in, and this is NOT one of them!
That said:
If you get out to do the "routine pulling of the prop" and you have a busted mag
wire, the airplane can start. I would never trust my life to a parking brake.
Therefore anytime I am pulling a prop through, at the very minimum that are
two sets of chocks under the tires. That's just me, but I have seen blood
all over the place and it kind of made a deep impression on me. It also made
a deep impression on that guys leg.
For every point you make there is a counterpoint, just like mine to yours.
If you set a parking brake so that you can concentrate on other things, you are
TRUSTING a parking brake to ALLOW YOU to take your concentration off the airplane
moving. I don't happen to agree with that.
Simply put, I just will never trust a parking brake. Period. Not in any way.
That very clearly may be an over-reaction as I have said. But... that is especially
true when the parking brake relies on a system of continuous pressure,
whether it be air or hydraulic. I just do not trust a system like that. You
can, and more power to you! I will not... and more power to me. I chock the
aircraft. Period.
Lastly, I also have to admit I have spent years aboard aircraft carriers. Unless
an aircraft is on the cat, there are guys shoving chocks under it every time
it stops. And everyone of them have parking brakes. Same same on the flight
line after shut-down.
I like chocks. I don't like parking brakes. Not trying to change your mind at
all. Mine will never change. :-)
Mark
________________________________
From: owner-yak-list-server@matronics.com on behalf of Eric Wobschall
Sent: Sun 9/19/2010 8:53 PM
Subject: Re: Yak-List: Oil shut-off valve
Mark, I'm not confused about our relative experience levels, so I
attribute full weight and value to your opinions. I can certainly see
how disaster can happen when relying on parking brakes in different
circumstances, and of course, judicious aircraft positioning is always
wise during any start for that reason. However, I think there's some
confusion here: You said "The guy got out". I am saying you should
NEVER have a plane running without a pilot in it. I was ONLY referring
to the routine pulling-though of the prop with the mags and ignition
off (obviously not running) AND the parking brake on for extra safety.
I have even been known to turn off mags in both cockpits. Only a very
foolish person would hand-prop a plane that's out of the same air that
actuates the brakes. Similarly foolish would be getting out of a plane
while it's running.
I am also saying that when you're IN THE PLANE, it's good to have the
parking brake on, as you might let off while concentrating on other
cockpit tasks. If something goes wrong, you're in position to re-apply
the brakes or cut the mags. Of course, this is not as necessary with
toe brakes.
Third reason to use the parking brake: Until you find chocks or tie
downs. Just in case there's any confusion, the search for chocks and
tie downs would not be with the engine running.
On Sep 19, 2010, at 6:25 PM, Bitterlich, Mark G CIV Det Cherry Point,
MALS-14 64E wrote:
> Point, MALS-14 64E" <mark.bitterlich@navy.mil>
>
> Eric, you probably won't like this and.. I am sorry for not
> agreeing, but I have to say I totally disagree with you in as polite
> a way as possible.
>
> If we stay with stock brakes in the YAK series aircraft that use
> COMPRESSED AIR to actuate the brakes, then when that compressed air
> goes away... your parking brake all of a sudden "isn't". I have
> sitting in my hangar a spare YAK-50. I don't advertise that fact
> much because everyone always wants to borrow parts off it, and sadly
> I have been burnt by a few folks doing that, so I simply will not do
> it anymore. But the interesting thing is: A guy got out to start
> that particular airplane with the parking brake on. It starts.
> The air was depleted from the system. It started. It ran at speed
> into a hangar and ripped the wings right off. Picture/proof sitting
> in my hangar.
>
> Relying on parking brakes for the exact reasons you just mentioned
> has in my mind an element of danger that is not required.
>
> If "somehow the mags are on" there is also a the possibility that
> "somehow there is no air either", and that means no brakes.
>
> Chocks/chains/ropes to me those are the only answers. And
> preferably two out of three.
>
> My words are not going to change your opinion and they are not meant
> to. Why I am writing this is simply to put a bigger picture into
> the view of the discussion.
>
> I think it carries a little bit of weight when someone says:
> "Parking Brakes can be dangerous, especially if you trust them to
> keep the airplane from moving when you are not in it". When you
> give that as a "theory" warning, of course that is one thing and
> doesn't carry all that much of an impact.
>
> When you show pictures of one of the must beautiful YAKS ever out
> there, totally ruined by someone who relied on the parking brake ...
> it carries a lot more. I look at that airplane all the time, and I
> guess that is why I am so much against parking brakes AT ALL. But,
> I will readily admit to being overly cautious because of looking at
> that wreck every time I fly.
>
> Mark
>
>
> ________________________________
>
> From: owner-yak-list-server@matronics.com on behalf of Eric Wobschall
> Sent: Sun 9/19/2010 6:48 AM
> To: yak-list@matronics.com
> Subject: Re: Yak-List: Oil shut-off valve
>
>
> >
>
> I agree that one should NEVER leave the aircraft when it's running
> (who does that, anyway?), but parking brakes have other purposes, such
> as, oh, PARKING (chocks not always available immediately, or needed
> for a short stay). Also, I always use the parking brake during pull
> through... especially when it might have been flown recently, because
> if somehow the mags are on (passengers anyone) and you failed to check
> it, at least the plane wont be advancing on you while it's trying to
> chop you up. Lastly, even though I'm in the plane, I set the parking
> brake during start-up and shut-down run-ups.
>
>
> On Sep 19, 2010, at 2:56 AM, Jan Mevis wrote:
>
>>
>> I concur with that, and I use my small mod only for starting up the
>> aircraft. When needed I can add another prime or two, without
>> worrying that
>> the aircraft might jump forward. You never know who might be foolish
>> enough
>> to stand in front of the prop ... even after shouting a loud "prop
>> cleaar
>> ...".
>>
>> Jan
>>
>> PS: I would NEVER leave an aircraft alone with a running engine, and
>> parking
>> brakes set, like some do.
>>
>> -----Original Message-----
>> From: owner-yak-list-server@matronics.com
>> [mailto:owner-yak-list-server@matronics.com] On Behalf Of Yak Pilot
>> Sent: zondag 19 september 2010 5:33
>> To: yak-list@matronics.com
>> Subject: RE: Yak-List: Oil shut-off valve
>>
>>
>> Actually Jan, I don't believe in parking brakes. I personally think
>> they
>> are an accident looking to happen.
>>
>> Mark
>>
>>
>> --- On Sat, 9/18/10, Jan Mevis <jan.mevis@informavia.be> wrote:
>>
>>> From: Jan Mevis <jan.mevis@informavia.be>
>>> Subject: RE: Yak-List: Oil shut-off valve
>>> To: yak-list@matronics.com
>>> Date: Saturday, September 18, 2010, 3:45 AM
>>> "Jan Mevis" <jan.mevis@informavia.be>
>>>
>>> For a parking brake in my 50, I use something very simple:
>>> a velcro strap
>>> (like the ones used to tie up network cables) with which I
>>> hold the brake.
>>> When ready to depart, I simply unlock the brake by removing
>>> the strap
>>> (without undoing it) and then shift it on the stick. (If
>>> this is unclear I
>>> 'll make a photo and post it to the list). I leave it on
>>> the stick all the
>>> time. It can't become an FOD while flying because your hand
>>> is in the way.
>>>
>>> Jan
>>>
>>> -----Original Message-----
>>> From: owner-yak-list-server@matronics.com
>>> [mailto:owner-yak-list-server@matronics.com]
>>> On Behalf Of Bitterlich, Mark G
>>> CIV Det Cherry Point, MALS-14 64E
>>> Sent: vrijdag 17 september 2010 6:13
>>> To: yak-list@matronics.com
>>> Subject: RE: Yak-List: Oil shut-off valve
>>>
>>> Det Cherry Point,
>>> MALS-14 64E" <mark.bitterlich@navy.mil>
>>>
>>> Sukhoi's don't have a parking brake. Neither does my
>>> 50. :-) But I have
>>> toe hyd brakes on my 50 with Cleveland wheels and brakes.
>>>
>>> Mark
>>>
>>>
>>> -----Original Message-----
>>> From: owner-yak-list-server@matronics.com
>>> [mailto:owner-yak-list-server@matronics.com]
>>> On Behalf Of Eric Wobschall
>>> Sent: Thursday, September 16, 2010 17:07
>>> To: yak-list@matronics.com
>>> Subject: Re: Yak-List: Oil shut-off valve
>>>
>>>>
>>>
>>> I set the brake when I'm pulling through. At least, it
>>> helps the rolling
>>> forward factor.
>>>
>>>
>>> On Sep 16, 2010, at 10:09 AM, Bitterlich, Mark G CIV Det
>>> Cherry Point,
>>> MALS-14 64E wrote:
>>>
>>> CIV Det Cherry
>>>> Point, MALS-14 64E" <mark.bitterlich@navy.mil>
>>>>
>>>>
>>>> Before starting the engine after some rather extensive
>>> work, a good
>>>> friend of mine was pulling the prop through when the
>>> engine
>>>> started. The prop struck him taking a good chunk
>>> out of the blade
>>>> as well as his knee and leg. The gent fell to
>>> the ground and the
>>>> aircraft started rolling forward. I was standing
>>> there and actually
>>>> saw all this happen and ran out and stopped the
>>> aircraft from
>>>> moving. After he was pulled away by other folks
>>> at the airport I
>>>> went to the cockpit and tried to shut down the
>>> engine. Both MAGS
>>>> were already OFF. I then went to pull the fuel
>>> shut-off handle but
>>>> it was actually tied to another handle marked OIL SHUT
>>> OFF. So by
>>>> pulling the fuel handle, I would also be shutting off
>>> the oil. Not
>>>> exactly the same design Vic has, but the same
>>> results.
>>>>
>>>> We all tend to think of things in our aircraft always
>>> working the
>>>> way they should. Obviously sometimes they
>>> don't. Our M-14's are
>>>> shut off by turning off the mags. The mags
>>> are turned off by
>>>> providing a GROUND to a "P" lead. All that needs
>>> to happen is for
>>>> one of those wires to break and the engine will not be
>>> able to be
>>>> shut down by the normal method. Switch failure,
>>> wire failure,
>>>> whatever. The engine will not shut off.
>>> This leaves the Emergency
>>>> Fuel Shut-Off as the only real method of securing the
>>> engine.
>>>> However, when you pull this handle, the engine does
>>> not immediately
>>>> shut off, it runs for awhile. If you have your
>>> oil shut-off valve
>>>> connected so that it also shuts off with the Emergency
>>> Fuel Handle,
>>>> then you will be running your engine without oil.
>>>>
>>>> To finish my particular story, I did just that.
>>> I pulled the shut-
>>>> off handle out, the engine kept running and I then
>>> watched the oil
>>>> pressure dropping to zero. I shoved the handle
>>> back in because I
>>>> just could not stand to ruin an engine.
>>> Especially THIS engine.
>>>>
>>>> After chocking the airplane, I manually grounded the
>>> left mag which
>>>> killed the engine. The "P" lead grounding wire
>>> was open to the
>>>> switch.
>>>>
>>>> Mark Bitterlich
>>>>
>>>> P.s. Dennis, I do not believe in pulling the
>>> emergency fuel shut
>>>> off handle after every flight. I personally
>>> believe that the
>>>> pressure carb should have fuel to it at all times to
>>> help prevent
>>>> diaphragms from drying out. However, I do
>>> believe it testing it
>>>> every once in awhile! :-)
>>>>
>>>>
>>>>
>>>>
>>>> -----Original Message-----
>>>> From: owner-yak-list-server@matronics.com
>>> [mailto:owner-yak-list-server@matronics.com
>>>
>>>> ] On Behalf Of Eric Wobschall
>>>> Sent: Thursday, September 16, 2010 9:23 AM
>>>> To: yak-list@matronics.com
>>>> Subject: Re: Yak-List: Oil shut-off valve
>>>>
>>>> I have also heard varying opinions about whether or
>>> not the fuel
>>>> valve should be shut off regularly. Opinions?
>>>>
>>>> On Sep 16, 2010, at 8:20 AM, A. Dennis Savarese
>>> wrote:
>>>>
>>>>
>>>>
>>>> Jim Kimball Enterprises in
>>> Zellwood, FL has been selling an oil
>>>> shut of kit for quite some time. The valve
>>> interlocks with a
>>>> microswitch which is wired to the air start button/air
>>> start valve.
>>>> If the valve is closed, the engine can not be started
>>> because the
>>>> microswitch remains engaged by the lever on the shut
>>> off valve.
>>> http://www.jimkimballenterprises.com/web/m14p.php
>>>> Slide down the page to the 6th item.
>>>> Dennis
>>>>
>>>>
>>>>
>>>> ----- Original
>>> Message -----
>>>> From: Vic
>>> <mailto:vicmolnar@aol.com>
>>>> To: yak-list@matronics.com
>>>> Sent: Thursday,
>>> September 16, 2010 5:38 AM
>>>> Subject:
>>> Yak-List: Oil shut-off valve
>>>>
>>>> --> Yak-List
>>> message posted by: "Vic" <vicmolnar@aol.com>
>>>>
>>>> Hello,
>>>> to stop oil
>>> draining into the crankcase I came to a solution
>>> which
>>>> works great on the Yak 18T so far. As you can see on
>>> the photos, I
>>>> added a ball valve into the feed hose to the oil pump
>>> on the right
>>>> side of the fire wall where the hose forms a U-shape.
>>> The lever on
>>>> the ball valve is connected to the lever of the petrol
>>> tap on the
>>>> left side via push-pull rod, so when you close the
>>> petrol after
>>>> engine shut-down, you shut the oil at the same time.
>>> No more need to
>>>> drain the crank case before start. You just cannot
>>> forget to turn on
>>>> the oil as you cannot miss that petrol has to be
>>> opened in the
>>>> cockpit, as both valves are connected by pushrod. I
>>> added a safety
>>>> spring to the ball valve, pulling in the
>>> "open"position, in case,
>>>> something should break.
>>>> There may be the
>>> need for some minor re-routing of oil hoses
>>> for a
>>>> straight pushrod between both valves but it can be
>>> done. I dont
>>>> know if this goes for 52s as well. Maybe there is need
>>> for an
>>>> intermediate lever and two pushrods to clear
>>> obstacles, but the
>>>> system seems reasonably failsafe to me.
>>>>
>>>> Vic
>>>>
>>>>
>>>>
>>>>
>>>> Read this topic
>>> online here:
>>>>
>>>> http://forums.matronics.com/viewtopic.php?p=312598#312598
>>>>
>>>>
>>>>
>>>>
>>>> Attachments:
>>>>
>>>> http://forums.matronics.com//files/oil_shutoff_valve_125.jpg
>>>>
>>>>
>>>> p;
>>> Navigator Photoshare, and
>>> href="http://www.matronics.com/Navigator?Yak-List
>>>> ">http://www.matronics======================== <http://www.matronics========================/> <http://www.matronics========================/
>>>> > <;
>>> via the Web
>>>> href="http://forums.matronics.com <http://forums.matronics.com/> <http://forums.matronics.com/>
>>>> ">http://forums.matronics.com <http://forums.matronics.com/> <http://forums.matronics.com/>
>>>> _p;
>>> generous bsp;
>>> href="http://www.matronics.com/contribution
>>>> ">http://www.matronics.com/c================
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>
>> href="http://www.matronics.com/Navigator?Yak-List">http://www.matronics.com/
>>> Navigator?Yak-List
>>>> href="http://forums.matronics.com <http://forums.matronics.com/> <http://forums.matronics.com/
>>>> > ">http://forums.matronics.com <http://forums.matronics.com/> <http://forums.matronics.com/>
>>>>
>>>
>> href="http://www.matronics.com/contribution">http://www.matronics.com/contri
>>> bution
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> Forum -
>>> FAQ,
>>> - MATRONICS WEB FORUMS -
>>> List Contribution Web Site -
>>> -Matt
>>> Dralle, List Admin.
>>>
>>>
>>>
>>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>
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| Subject: | Re: Oil shut-off valve |
Logical. And of course, the Yak-52 was designed around the ground crew
culture. Something for one to consider when you're by yourself.
On Sep 20, 2010, at 6:26 PM, Bitterlich, Mark G CIV Det Cherry Point,
MALS-14 64E wrote:
> Point, MALS-14 64E" <mark.bitterlich@navy.mil>
>
> You are very clearly advocating the use of parking brakes and are
> convinced that you have good ideas for using them. And there is no
> real right or wrong here, only a difference of opinion. It is not
> about experience levels... I don't put myself up on any pedestal,
> unless we are talking about a field I am a qualified professional
> in, and this is NOT one of them!
>
> That said:
>
> If you get out to do the "routine pulling of the prop" and you have
> a busted mag wire, the airplane can start. I would never trust my
> life to a parking brake. Therefore anytime I am pulling a prop
> through, at the very minimum that are two sets of chocks under the
> tires. That's just me, but I have seen blood all over the place and
> it kind of made a deep impression on me. It also made a deep
> impression on that guys leg.
>
> For every point you make there is a counterpoint, just like mine to
> yours.
>
> If you set a parking brake so that you can concentrate on other
> things, you are TRUSTING a parking brake to ALLOW YOU to take your
> concentration off the airplane moving. I don't happen to agree with
> that.
>
> Simply put, I just will never trust a parking brake. Period. Not in
> any way. That very clearly may be an over-reaction as I have said.
> But... that is especially true when the parking brake relies on a
> system of continuous pressure, whether it be air or hydraulic. I
> just do not trust a system like that. You can, and more power to
> you! I will not... and more power to me. I chock the aircraft.
> Period.
>
> Lastly, I also have to admit I have spent years aboard aircraft
> carriers. Unless an aircraft is on the cat, there are guys shoving
> chocks under it every time it stops. And everyone of them have
> parking brakes. Same same on the flight line after shut-down.
>
> I like chocks. I don't like parking brakes. Not trying to change
> your mind at all. Mine will never change. :-)
>
> Mark
>
>
> ________________________________
>
> From: owner-yak-list-server@matronics.com on behalf of Eric Wobschall
> Sent: Sun 9/19/2010 8:53 PM
> To: yak-list@matronics.com
> Subject: Re: Yak-List: Oil shut-off valve
>
>
> >
>
> Mark, I'm not confused about our relative experience levels, so I
> attribute full weight and value to your opinions. I can certainly see
> how disaster can happen when relying on parking brakes in different
> circumstances, and of course, judicious aircraft positioning is always
> wise during any start for that reason. However, I think there's some
> confusion here: You said "The guy got out". I am saying you should
> NEVER have a plane running without a pilot in it. I was ONLY referring
> to the routine pulling-though of the prop with the mags and ignition
> off (obviously not running) AND the parking brake on for extra safety.
> I have even been known to turn off mags in both cockpits. Only a very
> foolish person would hand-prop a plane that's out of the same air that
> actuates the brakes. Similarly foolish would be getting out of a plane
> while it's running.
>
> I am also saying that when you're IN THE PLANE, it's good to have the
> parking brake on, as you might let off while concentrating on other
> cockpit tasks. If something goes wrong, you're in position to re-apply
> the brakes or cut the mags. Of course, this is not as necessary with
> toe brakes.
>
> Third reason to use the parking brake: Until you find chocks or tie
> downs. Just in case there's any confusion, the search for chocks and
> tie downs would not be with the engine running.
>
>
> On Sep 19, 2010, at 6:25 PM, Bitterlich, Mark G CIV Det Cherry Point,
> MALS-14 64E wrote:
>
>> Point, MALS-14 64E" <mark.bitterlich@navy.mil>
>>
>> Eric, you probably won't like this and.. I am sorry for not
>> agreeing, but I have to say I totally disagree with you in as polite
>> a way as possible.
>>
>> If we stay with stock brakes in the YAK series aircraft that use
>> COMPRESSED AIR to actuate the brakes, then when that compressed air
>> goes away... your parking brake all of a sudden "isn't". I have
>> sitting in my hangar a spare YAK-50. I don't advertise that fact
>> much because everyone always wants to borrow parts off it, and sadly
>> I have been burnt by a few folks doing that, so I simply will not do
>> it anymore. But the interesting thing is: A guy got out to start
>> that particular airplane with the parking brake on. It starts.
>> The air was depleted from the system. It started. It ran at speed
>> into a hangar and ripped the wings right off. Picture/proof sitting
>> in my hangar.
>>
>> Relying on parking brakes for the exact reasons you just mentioned
>> has in my mind an element of danger that is not required.
>>
>> If "somehow the mags are on" there is also a the possibility that
>> "somehow there is no air either", and that means no brakes.
>>
>> Chocks/chains/ropes to me those are the only answers. And
>> preferably two out of three.
>>
>> My words are not going to change your opinion and they are not meant
>> to. Why I am writing this is simply to put a bigger picture into
>> the view of the discussion.
>>
>> I think it carries a little bit of weight when someone says:
>> "Parking Brakes can be dangerous, especially if you trust them to
>> keep the airplane from moving when you are not in it". When you
>> give that as a "theory" warning, of course that is one thing and
>> doesn't carry all that much of an impact.
>>
>> When you show pictures of one of the must beautiful YAKS ever out
>> there, totally ruined by someone who relied on the parking brake ...
>> it carries a lot more. I look at that airplane all the time, and I
>> guess that is why I am so much against parking brakes AT ALL. But,
>> I will readily admit to being overly cautious because of looking at
>> that wreck every time I fly.
>>
>> Mark
>>
>>
>> ________________________________
>>
>> From: owner-yak-list-server@matronics.com on behalf of Eric Wobschall
>> Sent: Sun 9/19/2010 6:48 AM
>> To: yak-list@matronics.com
>> Subject: Re: Yak-List: Oil shut-off valve
>>
>>
>>
>>>
>>
>> I agree that one should NEVER leave the aircraft when it's running
>> (who does that, anyway?), but parking brakes have other purposes,
>> such
>> as, oh, PARKING (chocks not always available immediately, or needed
>> for a short stay). Also, I always use the parking brake during pull
>> through... especially when it might have been flown recently, because
>> if somehow the mags are on (passengers anyone) and you failed to
>> check
>> it, at least the plane wont be advancing on you while it's trying to
>> chop you up. Lastly, even though I'm in the plane, I set the parking
>> brake during start-up and shut-down run-ups.
>>
>>
>> On Sep 19, 2010, at 2:56 AM, Jan Mevis wrote:
>>
>>> <jan.mevis@informavia.be>
>>>
>>> I concur with that, and I use my small mod only for starting up the
>>> aircraft. When needed I can add another prime or two, without
>>> worrying that
>>> the aircraft might jump forward. You never know who might be foolish
>>> enough
>>> to stand in front of the prop ... even after shouting a loud "prop
>>> cleaar
>>> ...".
>>>
>>> Jan
>>>
>>> PS: I would NEVER leave an aircraft alone with a running engine, and
>>> parking
>>> brakes set, like some do.
>>>
>>> -----Original Message-----
>>> From: owner-yak-list-server@matronics.com
>>> [mailto:owner-yak-list-server@matronics.com] On Behalf Of Yak Pilot
>>> Sent: zondag 19 september 2010 5:33
>>> To: yak-list@matronics.com
>>> Subject: RE: Yak-List: Oil shut-off valve
>>>
>>>
>>> Actually Jan, I don't believe in parking brakes. I personally think
>>> they
>>> are an accident looking to happen.
>>>
>>> Mark
>>>
>>>
>>> --- On Sat, 9/18/10, Jan Mevis <jan.mevis@informavia.be> wrote:
>>>
>>>> From: Jan Mevis <jan.mevis@informavia.be>
>>>> Subject: RE: Yak-List: Oil shut-off valve
>>>> To: yak-list@matronics.com
>>>> Date: Saturday, September 18, 2010, 3:45 AM
>>>> "Jan Mevis" <jan.mevis@informavia.be>
>>>>
>>>> For a parking brake in my 50, I use something very simple:
>>>> a velcro strap
>>>> (like the ones used to tie up network cables) with which I
>>>> hold the brake.
>>>> When ready to depart, I simply unlock the brake by removing
>>>> the strap
>>>> (without undoing it) and then shift it on the stick. (If
>>>> this is unclear I
>>>> 'll make a photo and post it to the list). I leave it on
>>>> the stick all the
>>>> time. It can't become an FOD while flying because your hand
>>>> is in the way.
>>>>
>>>> Jan
>>>>
>>>> -----Original Message-----
>>>> From: owner-yak-list-server@matronics.com
>>>> [mailto:owner-yak-list-server@matronics.com]
>>>> On Behalf Of Bitterlich, Mark G
>>>> CIV Det Cherry Point, MALS-14 64E
>>>> Sent: vrijdag 17 september 2010 6:13
>>>> To: yak-list@matronics.com
>>>> Subject: RE: Yak-List: Oil shut-off valve
>>>>
>>>> Det Cherry Point,
>>>> MALS-14 64E" <mark.bitterlich@navy.mil>
>>>>
>>>> Sukhoi's don't have a parking brake. Neither does my
>>>> 50. :-) But I have
>>>> toe hyd brakes on my 50 with Cleveland wheels and brakes.
>>>>
>>>> Mark
>>>>
>>>>
>>>> -----Original Message-----
>>>> From: owner-yak-list-server@matronics.com
>>>> [mailto:owner-yak-list-server@matronics.com]
>>>> On Behalf Of Eric Wobschall
>>>> Sent: Thursday, September 16, 2010 17:07
>>>> To: yak-list@matronics.com
>>>> Subject: Re: Yak-List: Oil shut-off valve
>>>>
>>>>>
>>>>
>>>> I set the brake when I'm pulling through. At least, it
>>>> helps the rolling
>>>> forward factor.
>>>>
>>>>
>>>> On Sep 16, 2010, at 10:09 AM, Bitterlich, Mark G CIV Det
>>>> Cherry Point,
>>>> MALS-14 64E wrote:
>>>>
>>>> CIV Det Cherry
>>>>> Point, MALS-14 64E" <mark.bitterlich@navy.mil>
>>>>>
>>>>>
>>>>> Before starting the engine after some rather extensive
>>>> work, a good
>>>>> friend of mine was pulling the prop through when the
>>>> engine
>>>>> started. The prop struck him taking a good chunk
>>>> out of the blade
>>>>> as well as his knee and leg. The gent fell to
>>>> the ground and the
>>>>> aircraft started rolling forward. I was standing
>>>> there and actually
>>>>> saw all this happen and ran out and stopped the
>>>> aircraft from
>>>>> moving. After he was pulled away by other folks
>>>> at the airport I
>>>>> went to the cockpit and tried to shut down the
>>>> engine. Both MAGS
>>>>> were already OFF. I then went to pull the fuel
>>>> shut-off handle but
>>>>> it was actually tied to another handle marked OIL SHUT
>>>> OFF. So by
>>>>> pulling the fuel handle, I would also be shutting off
>>>> the oil. Not
>>>>> exactly the same design Vic has, but the same
>>>> results.
>>>>>
>>>>> We all tend to think of things in our aircraft always
>>>> working the
>>>>> way they should. Obviously sometimes they
>>>> don't. Our M-14's are
>>>>> shut off by turning off the mags. The mags
>>>> are turned off by
>>>>> providing a GROUND to a "P" lead. All that needs
>>>> to happen is for
>>>>> one of those wires to break and the engine will not be
>>>> able to be
>>>>> shut down by the normal method. Switch failure,
>>>> wire failure,
>>>>> whatever. The engine will not shut off.
>>>> This leaves the Emergency
>>>>> Fuel Shut-Off as the only real method of securing the
>>>> engine.
>>>>> However, when you pull this handle, the engine does
>>>> not immediately
>>>>> shut off, it runs for awhile. If you have your
>>>> oil shut-off valve
>>>>> connected so that it also shuts off with the Emergency
>>>> Fuel Handle,
>>>>> then you will be running your engine without oil.
>>>>>
>>>>> To finish my particular story, I did just that.
>>>> I pulled the shut-
>>>>> off handle out, the engine kept running and I then
>>>> watched the oil
>>>>> pressure dropping to zero. I shoved the handle
>>>> back in because I
>>>>> just could not stand to ruin an engine.
>>>> Especially THIS engine.
>>>>>
>>>>> After chocking the airplane, I manually grounded the
>>>> left mag which
>>>>> killed the engine. The "P" lead grounding wire
>>>> was open to the
>>>>> switch.
>>>>>
>>>>> Mark Bitterlich
>>>>>
>>>>> P.s. Dennis, I do not believe in pulling the
>>>> emergency fuel shut
>>>>> off handle after every flight. I personally
>>>> believe that the
>>>>> pressure carb should have fuel to it at all times to
>>>> help prevent
>>>>> diaphragms from drying out. However, I do
>>>> believe it testing it
>>>>> every once in awhile! :-)
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> -----Original Message-----
>>>>> From: owner-yak-list-server@matronics.com
>>>> [mailto:owner-yak-list-server@matronics.com
>>>>
>>>>> ] On Behalf Of Eric Wobschall
>>>>> Sent: Thursday, September 16, 2010 9:23 AM
>>>>> To: yak-list@matronics.com
>>>>> Subject: Re: Yak-List: Oil shut-off valve
>>>>>
>>>>> I have also heard varying opinions about whether or
>>>> not the fuel
>>>>> valve should be shut off regularly. Opinions?
>>>>>
>>>>> On Sep 16, 2010, at 8:20 AM, A. Dennis Savarese
>>>> wrote:
>>>>>
>>>>>
>>>>>
>>>>> Jim Kimball Enterprises in
>>>> Zellwood, FL has been selling an oil
>>>>> shut of kit for quite some time. The valve
>>>> interlocks with a
>>>>> microswitch which is wired to the air start button/air
>>>> start valve.
>>>>> If the valve is closed, the engine can not be started
>>>> because the
>>>>> microswitch remains engaged by the lever on the shut
>>>> off valve.
>>>> http://www.jimkimballenterprises.com/web/m14p.php
>>>>> Slide down the page to the 6th item.
>>>>> Dennis
>>>>>
>>>>>
>>>>>
>>>>> ----- Original
>>>> Message -----
>>>>> From: Vic
>>>> <mailto:vicmolnar@aol.com>
>>>>> To: yak-list@matronics.com
>>>>> Sent: Thursday,
>>>> September 16, 2010 5:38 AM
>>>>> Subject:
>>>> Yak-List: Oil shut-off valve
>>>>>
>>>>> --> Yak-List
>>>> message posted by: "Vic" <vicmolnar@aol.com>
>>>>>
>>>>> Hello,
>>>>> to stop oil
>>>> draining into the crankcase I came to a solution
>>>> which
>>>>> works great on the Yak 18T so far. As you can see on
>>>> the photos, I
>>>>> added a ball valve into the feed hose to the oil pump
>>>> on the right
>>>>> side of the fire wall where the hose forms a U-shape.
>>>> The lever on
>>>>> the ball valve is connected to the lever of the petrol
>>>> tap on the
>>>>> left side via push-pull rod, so when you close the
>>>> petrol after
>>>>> engine shut-down, you shut the oil at the same time.
>>>> No more need to
>>>>> drain the crank case before start. You just cannot
>>>> forget to turn on
>>>>> the oil as you cannot miss that petrol has to be
>>>> opened in the
>>>>> cockpit, as both valves are connected by pushrod. I
>>>> added a safety
>>>>> spring to the ball valve, pulling in the
>>>> "open"position, in case,
>>>>> something should break.
>>>>> There may be the
>>>> need for some minor re-routing of oil hoses
>>>> for a
>>>>> straight pushrod between both valves but it can be
>>>> done. I dont
>>>>> know if this goes for 52s as well. Maybe there is need
>>>> for an
>>>>> intermediate lever and two pushrods to clear
>>>> obstacles, but the
>>>>> system seems reasonably failsafe to me.
>>>>>
>>>>> Vic
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> Read this topic
>>>> online here:
>>>>>
>>>>> http://forums.matronics.com/viewtopic.php?p=312598#312598
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> Attachments:
>>>>>
>>>>> http://forums.matronics.com//files/oil_shutoff_valve_125.jpg
>>>>>
>>>>>
>>>>> p;
>>>> Navigator Photoshare, and
>>>> href="http://www.matronics.com/Navigator?Yak-List
>>>>> ">http://www.matronics======================== <http://www.matronics========================/
>>>>> > <http://www.matronics========================/
>>>>>> <;
>>>> via the Web
>>>>> href="http://forums.matronics.com <http://forums.matronics.com/
>>>>> > <http://forums.matronics.com/>
>>>>> ">http://forums.matronics.com <http://forums.matronics.com/> <http://forums.matronics.com/
>>>>> >
>>>>> _p;
>>>> generous bsp;
>>>> href="http://www.matronics.com/contribution
>>>>> ">http://www.matronics.com/c================
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>
>>> href="http://www.matronics.com/Navigator?Yak-List">http://www.matronics.com/
>>>> Navigator?Yak-List
>>>>> href="http://forums.matronics.com <http://forums.matronics.com/
>>>>> > <http://forums.matronics.com/
>>>>>> ">http://forums.matronics.com <http://forums.matronics.com/> <http://forums.matronics.com/
>>>>>> >
>>>>>
>>>>
>>> href="http://www.matronics.com/contribution">http://www.matronics.com/contri
>>>> bution
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> Forum -
>>>> FAQ,
>>>> - MATRONICS WEB FORUMS -
>>>> List Contribution Web Site -
>>>> -Matt
>>>> Dralle, List Admin.
>>>>
>>>>
>>>>
>>>>
>>>
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