Today's Message Index:
----------------------
1. 04:57 AM - Re: Prop seal replacement and subsequent vibration (Scooter)
2. 05:13 AM - Re: Re: Prop seal replacement and subsequent vibration (A. Dennis Savarese)
3. 05:32 AM - Re: Re: Request for Info (Stephen Fox)
4. 07:31 AM - Re: Re: Request for Info (bpx2horn@aol.com)
5. 07:44 AM - Re: Re: Request for Info (Stephen Fox)
6. 08:31 AM - Re: Re: Prop seal replacement and subsequent vibration-dynamic balance (Kregg Victory)
7. 08:44 AM - Re: [Norton AntiSpam] Re: Re: Request for Info (Roger Kemp)
8. 08:44 AM - SFM Fly-in Sign up NOW! (Stephen Fox)
9. 09:11 AM - Re: Re: Request for Info (Kelley Monroe)
10. 09:12 AM - Re: [Norton AntiSpam] Re: Re: Request for Info (bpx2horn@aol.com)
11. 09:14 AM - [Norton AntiSpam] Re: Request for Info (flir47)
12. 11:38 AM - Yak-50 Electrical System Troubleshooting (Harry Hirschman)
13. 01:10 PM - Re: Yak-50 Electrical System Troubleshooting (Roger Kemp)
14. 03:34 PM - Re: Prop seal replacement and subsequent vibration-dynamic balan (Scooter)
15. 04:42 PM - Re: Yak-50 Electrical System Troubleshooting (Rob Rowe)
16. 07:47 PM - Re: Re: M14 Fuel Flow meter and JPI Engine monitoring (netmaster15@juno.com)
17. 09:25 PM - Re: Re: M14 Fuel Flow meter and JPI Engine monitoring (Roger Kemp)
18. 09:32 PM - Re: [Norton AntiSpam] Re: Request for Info (Roger Kemp)
19. 09:39 PM - YAK-50 wiring schematic (Roger Kemp)
20. 10:31 PM - Red Air Fall Fling with a twist (Roger Kemp)
Message 1
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| Subject: | Re: Prop seal replacement and subsequent vibration |
--> Yak-List message posted by: "Scooter" <yakk52@verizon.net>
UPDATE: I took Dennis's advice and wrapped some tape around one blade. The vibration
seemed to get a little worse so I wrapped some tape around the other blade.
Seemed to get better. So I wrapped a little more and it was definately
greatly improved.
The weight of the tape is 0.9 oz and was 43" from the center of the hub. This
seems to equate to about 7.8 oz at the point where you attach the balancing weights
(assuming that's 5" from center). Seems like quite a bit of weight.
Next step, I guess, is to pull the prop and check static balance. I'm still at
a loss to explain how this could have happened. I pulled one of the blades (the
blade that I put the tape on) and saw nothing out of the ordinairy.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=60914#60914
Message 2
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| Subject: | Re: Prop seal replacement and subsequent vibration |
--> Yak-List message posted by: "A. Dennis Savarese" <dsavarese@elmore.rr.com>
Scooter,
You're not going to be able to put 7.8 ounces of weight on the hub. My
suggestion is to do as you suggested and statically balance the prop. Try
balancing it with the counterweights slightly pulled back from full fine
pitch and check the balance at the 45, 90, 120, 180, 225, 270, 315 and 360
degree points. You can also use a can of spray paint and spray the back
side of the blade to "fine tune" the static balance.
Dennis
----- Original Message -----
From: "Scooter" <yakk52@verizon.net>
Sent: Monday, September 11, 2006 6:56 AM
Subject: Yak-List: Re: Prop seal replacement and subsequent vibration
> --> Yak-List message posted by: "Scooter" <yakk52@verizon.net>
>
> UPDATE: I took Dennis's advice and wrapped some tape around one blade.
> The vibration seemed to get a little worse so I wrapped some tape around
> the other blade. Seemed to get better. So I wrapped a little more and it
> was definately greatly improved.
>
> The weight of the tape is 0.9 oz and was 43" from the center of the hub.
> This seems to equate to about 7.8 oz at the point where you attach the
> balancing weights (assuming that's 5" from center). Seems like quite a
> bit of weight.
>
> Next step, I guess, is to pull the prop and check static balance. I'm
> still at a loss to explain how this could have happened. I pulled one of
> the blades (the blade that I put the tape on) and saw nothing out of the
> ordinairy.
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=60914#60914
>
>
>
Message 3
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| Subject: | Re: Request for Info |
Also Aircraft Exhaust is now making stainless exhaust for the M14P,
did mine several months ago and it's really nice. They now are
looking for an old Huosai exhaust so they can make the template for
the CJ exhaust
Contact info: http://www.aircraftexhaust.net/
1-800-770-7287
talk to Chris Steppe or Rich
Steve Fox
On Sep 11, 2006, at 2:16 AM, Jim wrote:
> I have a New Stainless Steel Set if anyone is looking for one.
> Jim
> ----- Original Message -----
> From: Roger Kemp
> To: yak-list@matronics.com
> Sent: Sunday, September 10, 2006 8:21 PM
> Subject: Re: Yak-List: Re: Request for Info
>
> I bought a couple of replacement sections from Steve Culp. I am not
> sure he took over the production of the exact pipes though. He does
> have a few extra sections fo the exhaust though.
> Doc
>
>
> ----- Original Message -----
> From:
> To: yak-list@matronics.com
> Sent: 9/10/2006 9:44:35 PM
> Subject: Re: Yak-List: Re: Request for Info
>
> Does anyone have the new contact info, we need a replacement piece?
>
> Thanks, Dave
>
> In a message dated 9/10/2006 7:30:19 PM Pacific Daylight Time,
> yakflyr@comcast.net writes:
> Mark, the guy who used to make radial engine exhaust systems in
> Jumping Branch, WV was quite expert at bending tubing. I believe he
> retired and sold the radial engine exhaust business to either
> Kimball or Culp. Maybe that kind of expertise could do the job?
> < FONT>
> .com/Navigator?Yak-List
> http://www.matronics.com/Navigator?Yak-List_-
> ============================================================ _-
> forums.matronics.com_-
> ============================================================ _-
> ============================================================ _-
> contribution_-
> ===========================================================
>
Message 4
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| Subject: | Re: Request for Info |
Steve,
What was the cost for the exhaust?
Paul Hornick
-----Original Message-----
From: jsfox@adelphia.net
Sent: Mon, 11 Sep 2006 7:31 AM
Subject: Re: Yak-List: Re: Request for Info
Also Aircraft Exhaust is now making stainless exhaust for the M14P, did mine several
months ago and it's really nice. They now are looking for an old Huosai
exhaust so they can make the template for the CJ exhaust
Contact info: http://www.aircraftexhaust.net/
1-800-770-7287
talk to Chris Steppe or Rich
Steve Fox
On Sep 11, 2006, at 2:16 AM, Jim wrote:
I have a New Stainless Steel Set if anyone is looking for one.
Jim
----- Original Message -----
From: Roger Kemp
Sent: Sunday, September 10, 2006 8:21 PM
Subject: Re: Yak-List: Re: Request for Info
I bought a couple of replacement sections from Steve Culp. I am not sure he took
over the production of the exact pipes though. He does have a few extra sections
fo the exhaust though.
Doc
----- Original Message -----
From:
Sent: 9/10/2006 9:44:35 PM
Subject: Re: Yak-List: Re: Request for Info
Does anyone have the new contact info, we need a replacement piece?
Thanks, Dave
In a message dated 9/10/2006 7:30:19 PM Pacific Daylight Time, yakflyr@comcast.net
writes:
Mark, the guy who used to make radial engine exhaust systems in Jumping Branch,
WV was quite expert at bending tubing. I believe he retired and sold the radial
engine exhaust business to either Kimball or Culp. Maybe that kind of expertise
could do the job?
< FONT>
.com/Navigator?Yak-List
________________________________________________________________________
Check out the new AOL. Most comprehensive set of free safety and security tools,
free access to millions of high-quality videos from across the web, free AOL
Mail and more.
Message 5
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| Subject: | Re: Request for Info |
The cost is $2750. They are also working on a optional dual heat muff
instead of a single. The price will probably be an extra $100 or so.
Steve
On Sep 11, 2006, at 10:06 AM, bpx2horn@aol.com wrote:
> Steve,
>
> What was the cost for the exhaust?
>
> Paul Hornick
>
>
> -----Original Message-----
> From: jsfox@adelphia.net
> To: yak-list@matronics.com
> Sent: Mon, 11 Sep 2006 7:31 AM
> Subject: Re: Yak-List: Re: Request for Info
>
> Also Aircraft Exhaust is now making stainless exhaust for the
> M14P, did mine several months ago and it's really nice. They now
> are looking for an old Huosai exhaust so they can make the template
> for the CJ exhaust
> Contact info: http://www.aircraftexhaust.net/
> 1-800-770-7287
> talk to Chris Steppe or Rich
>
> Steve Fox
>
> On Sep 11, 2006, at 2:16 AM, Jim wrote:
>
>> I have a New Stainless Steel Set if anyone is looking for one.
>> Jim
>> ----- Original Message -----
>> From: Roger Kemp
>> To: yak-list@matronics.com
>> Sent: Sunday, September 10, 2006 8:21 PM
>> Subject: Re: Yak-List: Re: Request for Info
>>
>> I bought a couple of replacement sections from Steve Culp. I am
>> not sure he took over the production of the exact pipes though. He
>> does have a few extra sections fo the exhaust though.
>> Doc
>>
>>
>> ----- Original Message -----
>> From:
>> To: yak-list@matronics.com
>> Sent: 9/10/2006 9:44:35 PM
>> Subject: Re: Yak-List: Re: Request for Info
>>
>> Does anyone have the new contact info, we need a replacement piece?
>>
>> Thanks, Dave
>>
>> In a message dated 9/10/2006 7:30:19 PM Pacific Daylight Time,
>> yakflyr@comcast.net writes:
>> Mark, the guy who used to make radial engine exhaust systems in
>> Jumping Branch, WV was quite expert at bending tubing. I believe
>> he retired and sold the radial engine exhaust business to either
>> Kimball or Culp. Maybe that kind of expertise could do the job?
>> < FONT>
>> .com/Navigator?Yak-List
>> - The Yak-List Email Forum - class="Apple-converted-
>> space" --> http://www.matronics.com/Navigator?Yak-
>> List - NEW MATRONICS WEB FORUMS - class="Apple-
>> converted-space"> --> http://forums.matronics.com
>> &nbs p; - NEW MATRONICS LIST WIKI - class="Apple-converted-
>> space" --> http://wiki.matronics.com - List
>> Contribution Web Site - -Matt Dralle,
>> List Admin. class="Apple-converted-space"> --> http://
>> www.matronics.com/contribution
>>
>
> Check out the new AOL. Most comprehensive set of free safety and
> security tools, free access to millions of high-quality videos from
> across the web, free AOL Mail and more.
> http://www.matronics.com/Navigator?Yak-List_-
> ============================================================ _-
> forums.matronics.com_-
> ============================================================ _-
> ============================================================ _-
> contribution_-
> ===========================================================
>
Message 6
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| Subject: | Re: Prop seal replacement and subsequent vibration-dynamic |
balance
--> Yak-List message posted by: "Kregg Victory" <kregg@balancemyprop.com>
The only way to really reduce the vibration of the prop is to make sure that
the blade angles are correct and making sure the hub serviceable too. Once
that is done you should have it dynamically balanced. I specialize in
dynamic balancing and vibration analysis. Every yak I balanced made a
significant improvement in the vibration level. This is especially good for
the gear reduction as well.
Where are you located?
You can also read more about balancing at www.balancemyprop.com
Thanks
Kregg Victory
408-836-5122
www.balancemyprop.com
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Scooter
Sent: Monday, September 11, 2006 4:57 AM
Subject: Yak-List: Re: Prop seal replacement and subsequent vibration
--> Yak-List message posted by: "Scooter" <yakk52@verizon.net>
UPDATE: I took Dennis's advice and wrapped some tape around one blade. The
vibration seemed to get a little worse so I wrapped some tape around the
other blade. Seemed to get better. So I wrapped a little more and it was
definately greatly improved.
The weight of the tape is 0.9 oz and was 43" from the center of the hub.
This seems to equate to about 7.8 oz at the point where you attach the
balancing weights (assuming that's 5" from center). Seems like quite a bit
of weight.
Next step, I guess, is to pull the prop and check static balance. I'm still
at a loss to explain how this could have happened. I pulled one of the
blades (the blade that I put the tape on) and saw nothing out of the
ordinairy.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=60914#60914
Message 7
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| Subject: | Re: Request for Info |
Is the dual heat muffler for you guys in the frozen northern wasteland!
Doc
----- Original Message -----
From: Stephen Fox
Sent: 9/11/2006 10:03:46 AM
Subject: [Norton AntiSpam] Re: Yak-List: Re: Request for Info
The cost is $2750. They are also working on a optional dual heat muff instead of
a single. The price will probably be an extra $100 or so.
Steve
On Sep 11, 2006, at 10:06 AM, bpx2horn@aol.com wrote:
Steve,
What was the cost for the exhaust?
Paul Hornick
-----Original Message-----
From: jsfox@adelphia.net
Sent: Mon, 11 Sep 2006 7:31 AM
Subject: Re: Yak-List: Re: Request for Info
Also Aircraft Exhaust is now making stainless exhaust for the M14P, did mine several
months ago and it's really nice. They now are looking for an old Huosai
exhaust so they can make the template for the CJ exhaust
Contact info: http://www.aircraftexhaust.net/
1-800-770-7287
talk to Chris Steppe or Rich
Steve Fox
On Sep 11, 2006, at 2:16 AM, Jim wrote:
I have a New Stainless Steel Set if anyone is looking for one.
Jim
----- Original Message -----
From: Roger Kemp
Sent: Sunday, September 10, 2006 8:21 PM
Subject: Re: Yak-List: Re: Request for Info
I bought a couple of replacement sections from Steve Culp. I am not sure he took
over the production of the exact pipes though. He does have a few extra sections
fo the exhaust though.
Doc
----- Original Message -----
From:
Sent: 9/10/2006 9:44:35 PM
Subject: Re: Yak-List: Re: Request for Info
Does anyone have the new contact info, we need a replacement piece?
Thanks, Dave
In a message dated 9/10/2006 7:30:19 PM Pacific Daylight Time, yakflyr@comcast.net
writes:
Mark, the guy who used to make radial engine exhaust systems in Jumping Branch,
WV was quite expert at bending tubing. I believe he retired and sold the radial
engine exhaust business to either Kimball or Culp. Maybe that kind of expertise
could do the job?
< FONT>
.com/Navigator?Yak-List
Check out the new AOL. Most comprehensive set of free safety and security tools,
free access to millions of high-quality videos from across the web, free AOL
Mail and more.
Message 8
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| Subject: | SFM Fly-in Sign up NOW! |
Time has just about run out to sign-up for the Fall FAST Clinic,
Operation Pumpkin Drop, and general good time at KSFM, Sanford, ME.
Weather looks to be excellent for the weekend and there are still
rooms available at the Majestic Regency.
Also our host, Southern Maine Aviation is putting on a BBQ for us
Friday evening at their hangar. So free food and beer!
You don't want to miss this event. OPERATION PUMPKIN DROP in downtown
Sanford is going to be well worth the gas it takes you to get here!
For all the info and to register please got to the event web site :
SFM RedStar Fall Fly-in
You can also register on the RPA web site, event page.
Steve Fox
Message 9
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| Subject: | Re: Request for Info |
I just talked to Rich and offered him my core engine. So he may be
making systems soon. Thanks kelley
----- Original Message -----
From: Stephen Fox
To: yak-list@matronics.com
Sent: Monday, September 11, 2006 7:31 AM
Subject: Re: Yak-List: Re: Request for Info
Also Aircraft Exhaust is now making stainless exhaust for the M14P,
did mine several months ago and it's really nice. They now are looking
for an old Huosai exhaust so they can make the template for the CJ
exhaust
Contact info: http://www.aircraftexhaust.net/
1-800-770-7287
talk to Chris Steppe or Rich
Steve Fox
On Sep 11, 2006, at 2:16 AM, Jim wrote:
I have a New Stainless Steel Set if anyone is looking for one.
Jim
----- Original Message -----
From: Roger Kemp
To: yak-list@matronics.com
Sent: Sunday, September 10, 2006 8:21 PM
Subject: Re: Yak-List: Re: Request for Info
I bought a couple of replacement sections from Steve Culp. I am
not sure he took over the production of the exact pipes though. He does
have a few extra sections fo the exhaust though.
Doc
----- Original Message -----
From:
To: yak-list@matronics.com
Sent: 9/10/2006 9:44:35 PM
Subject: Re: Yak-List: Re: Request for Info
Does anyone have the new contact info, we need a replacement
piece?
Thanks, Dave
In a message dated 9/10/2006 7:30:19 PM Pacific Daylight Time,
yakflyr@comcast.net writes:
Mark, the guy who used to make radial engine exhaust systems
in Jumping Branch, WV was quite expert at bending tubing. I believe he
retired and sold the radial engine exhaust business to either Kimball or
Culp. Maybe that kind of expertise could do the job?
< FONT>.com/Navigator?Yak-List - The Yak-List Email Forum -
class="Apple-converted-space"> -->
http://www.matronics.com/Navigator?Yak-List - NEW MATRONICS
WEB FORUMS - class="Apple-converted-space"> -->
http://forums.matronics.com - NEW MATRONICS LIST WIKI -
class="Apple-converted-space"> --> http://wiki.matronics.com
- List Contribution Web Site - -Matt
Dralle, List Admin. class="Apple-converted-space"> -->
http://www.matronics.com/contribution
Message 10
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| Subject: | Re: Request for Info |
Thanks Steve.
-----Original Message-----
From: viperdoc@mindspring.com
Sent: Mon, 11 Sep 2006 10:44 AM
Subject: RE: [Norton AntiSpam] Re: Yak-List: Re: Request for Info
Is the dual heat muffler for you guys in the frozen northern wasteland!
Doc
----- Original Message -----
From: Stephen Fox
Sent: 9/11/2006 10:03:46 AM
Subject: [Norton AntiSpam] Re: Yak-List: Re: Request for Info
The cost is $2750. They are also working on a optional dual heat muff instead of
a single. The price will probably be an extra $100 or so.
Steve
On Sep 11, 2006, at 10:06 AM, bpx2horn@aol.com wrote:
Steve,
What was the cost for the exhaust?
Paul Hornick
-----Original Message-----
From: jsfox@adelphia.net
Sent: Mon, 11 Sep 2006 7:31 AM
Subject: Re: Yak-List: Re: Request for Info
Also Aircraft Exhaust is now making stainless exhaust for the M14P, did mine several
months ago and it's really nice. They now are looking for an old Huosai
exhaust so they can make the template for the CJ exhaust
Contact info: http://www.aircraftexhaust.net/
1-800-770-7287
talk to Chris Steppe or Rich
Steve Fox
On Sep 11, 2006, at 2:16 AM, Jim wrote:
I have a New Stainless Steel Set if anyone is looking for one.
Jim
----- Original Message -----
From: Roger Kemp
Sent: Sunday, September 10, 2006 8:21 PM
Subject: Re: Yak-List: Re: Request for Info
I bought a couple of replacement sections from Steve Culp. I am not sure he took
over the production of the exact pipes though. He does have a few extra sections
fo the exhaust though.
Doc
----- Original Message -----
From:
Sent: 9/10/2006 9:44:35 PM
Subject: Re: Yak-List: Re: Request for Info
Does anyone have the new contact info, we need a replacement piece?
Thanks, Dave
In a message dated 9/10/2006 7:30:19 PM Pacific Daylight Time, yakflyr@comcast.net
writes:
Mark, the guy who used to make radial engine exhaust systems in Jumping Branch,
WV was quite expert at bending tubing. I believe he retired and sold the radial
engine exhaust business to either Kimball or Culp. Maybe that kind of expertise
could do the job?
< FONT>
.com/Navigator?Yak-List
Check out the new AOL. Most comprehensive set of free safety and security tools,
free access to millions of high-quality videos from across the web, free AOL
Mail and more.
- The Yak-List Email Forum - class="Apple-converted-space"> --> http://www.matronics.com/Navigator?Yak-List
________________________________________________________________________
Check out the new AOL. Most comprehensive set of free safety and security tools,
free access to millions of high-quality videos from across the web, free AOL
Mail and more.
Message 11
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| Subject: | Re: [Norton AntiSpam] Re: Request for Info |
--> Yak-List message posted by: "flir47" <me262pilot@comcast.net>
Hey Doc....get BENT!!!!!!
--------
Dont own a Yak unless you can afford to be married to a maintenance schedule!
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=60972#60972
Message 12
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| Subject: | Yak-50 Electrical System Troubleshooting |
--> Yak-List message posted by: Harry Hirschman <hairball192@yahoo.com>
All:
I'd appreciate any assistance people are willing to
provide to assist me in troubleshooting my Yak-50's
electrical system.
Symptoms:
1. Chronic problem of the left gear down indicator
light on or off-on when landing gear is up (with two
red up-and-locked lights also on)
2. Recently all annunciator lights (all four gear
indicators, generator, Over-G, chip, all cells on fuel
ladder) flashing on-off; Last flight all annunciator
lights were on and steady (same look as pushing the
press-to-test by the gear handle)
3. My electrical switches are labeled "Gear" and
"Inst"; The "Inst" switch controls the proper reading
of the fuel ladder (ie: it reads the correct amount of
fuel with this switch on), generator annunciator light
and engine instruments; The "gear" switch controls the
landing gear position indicator lights, all the light
cells on the fuel ladder (same as pushing the "k"
button to test the fuel indicator), the chip light and
the over-G light
In troubleshooting over the weekend, I performed the
following steps and got the following results:
1. Turned on the following switches: Battery, inst,
and gear; All annunciator lights came on, I heard what
I think is some kind of electrical motor wind up for a
few seconds, then the "Gear" switch-breaker flipped
itself off and the associated annunciator lights went
off and the sound ceased
2. After cycling the switch a half dozen times with
my head under the panel to try to locate the noise,
the motor stopped coming on with the gear switch, but
it continues to break to the off position after
several seconds in the on position; There is about a 2
amp draw with the "gear" switch on as indicated by the
aircraft guage; The noise was coming from behind the
instrument panel, but I couldn't locate the component
3. There are two wires attached to the "gear" switch;
Removed the wire labeled 05-CW1 and turned on the
batt, inst and gear switches with the same result -- 2
amp draw and gear switch breaks to off after several
seconds
4. Removed the wire labeled 05-CW2-01 and turned on
the batt, inst and gear switches and now the gear
switch does not break, the elec system remains on; The
landing gear indicator lights, fuel ladder lights,
chip light, and over-G light do not illuminate (proper
fuel indication, generator light on, and engine
instruments are powered) -- so the bad wire is this
one, I think
5. Re-installed both wires and verified that the
system fails in the same way as before
6. Friends manually held both landing gear position
squat switches in the "gear-up" position and turned
the electrical switches off with the same result --
Gear switch breaks to off after several seconds
7. Disconnected the left gear position squat switch
at the bus bar in the wing root by removing the lower
three of the four wires (I believe the top wire is for
pitot heat) and turned on the batt, inst and gear
switches -- GOT IT -- Same result as step 4 above --
Gear switch does not break, the elec system remains on
with a right gear down green light; I'm fuzzy on this
part, but I believe I did the push-to-test for the
annunciator lights and all worked EXCEPT the chip
light and over-G light
8. And then the plot thickens -- With the electrical
system on, manually depressed the RIGHT landing gear
squat switch -- The RIGHT gear down light went out and
the LEFT gear up light went on (hopefully a simple
crossed wire) AND got a 2.5 amp draw and the gear
switch broke to the off position after several seconds
Only two things scare me and both of them are
electricity, so I wouldn't have been able to do any of
this without the able help of some airport buds (Ken
and John). I hope I've given those who know something
about this enough information to narrow things down
for me.
I've got a couple of specific questions in addition to
the overall recommendations I hope will be
forthcoming:
- What electrical component do you think was making
the noise described in troubleshooting steps 1 and 2?
- It looks like there are separate parts for the left
and right landing gear squat switches; Is that true?
- From anyone out there has removed the entire Russian
electrical system and rewired new, how much time and
money did that take? Do you have a parts list for the
new system?
- Does anyone out there have an electrical diagram for
the Yak-50?
Many thanks in advance to everyone who's read this far
and to those who take the time to respond.
Regards,
Harry
__________________________________________________
Message 13
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| Subject: | Yak-50 Electrical System Troubleshooting |
--> Yak-List message posted by: "Roger Kemp" <viperdoc@mindspring.com>
Hitman,
I think Mark Bitterlich does. When I get home from the office today, I will
look at the CD that I have on 50 maintenance and let you know offline.
Doc
> [Original Message]
> From: Harry Hirschman <hairball192@yahoo.com>
> To: Yaklist Yaklist <yak-list@matronics.com>
> Date: 9/11/2006 1:48:14 PM
> Subject: Yak-List: Yak-50 Electrical System Troubleshooting
>
> --> Yak-List message posted by: Harry Hirschman <hairball192@yahoo.com>
>
> All:
>
> I'd appreciate any assistance people are willing to
> provide to assist me in troubleshooting my Yak-50's
> electrical system.
>
> Symptoms:
> 1. Chronic problem of the left gear down indicator
> light on or off-on when landing gear is up (with two
> red up-and-locked lights also on)
>
> 2. Recently all annunciator lights (all four gear
> indicators, generator, Over-G, chip, all cells on fuel
> ladder) flashing on-off; Last flight all annunciator
> lights were on and steady (same look as pushing the
> press-to-test by the gear handle)
>
> 3. My electrical switches are labeled "Gear" and
> "Inst"; The "Inst" switch controls the proper reading
> of the fuel ladder (ie: it reads the correct amount of
> fuel with this switch on), generator annunciator light
> and engine instruments; The "gear" switch controls the
> landing gear position indicator lights, all the light
> cells on the fuel ladder (same as pushing the "k"
> button to test the fuel indicator), the chip light and
> the over-G light
>
> In troubleshooting over the weekend, I performed the
> following steps and got the following results:
>
> 1. Turned on the following switches: Battery, inst,
> and gear; All annunciator lights came on, I heard what
> I think is some kind of electrical motor wind up for a
> few seconds, then the "Gear" switch-breaker flipped
> itself off and the associated annunciator lights went
> off and the sound ceased
>
> 2. After cycling the switch a half dozen times with
> my head under the panel to try to locate the noise,
> the motor stopped coming on with the gear switch, but
> it continues to break to the off position after
> several seconds in the on position; There is about a 2
> amp draw with the "gear" switch on as indicated by the
> aircraft guage; The noise was coming from behind the
> instrument panel, but I couldn't locate the component
>
> 3. There are two wires attached to the "gear" switch;
> Removed the wire labeled 05-CW1 and turned on the
> batt, inst and gear switches with the same result -- 2
> amp draw and gear switch breaks to off after several
> seconds
>
> 4. Removed the wire labeled 05-CW2-01 and turned on
> the batt, inst and gear switches and now the gear
> switch does not break, the elec system remains on; The
> landing gear indicator lights, fuel ladder lights,
> chip light, and over-G light do not illuminate (proper
> fuel indication, generator light on, and engine
> instruments are powered) -- so the bad wire is this
> one, I think
>
> 5. Re-installed both wires and verified that the
> system fails in the same way as before
>
> 6. Friends manually held both landing gear position
> squat switches in the "gear-up" position and turned
> the electrical switches off with the same result --
> Gear switch breaks to off after several seconds
>
> 7. Disconnected the left gear position squat switch
> at the bus bar in the wing root by removing the lower
> three of the four wires (I believe the top wire is for
> pitot heat) and turned on the batt, inst and gear
> switches -- GOT IT -- Same result as step 4 above --
> Gear switch does not break, the elec system remains on
> with a right gear down green light; I'm fuzzy on this
> part, but I believe I did the push-to-test for the
> annunciator lights and all worked EXCEPT the chip
> light and over-G light
>
> 8. And then the plot thickens -- With the electrical
> system on, manually depressed the RIGHT landing gear
> squat switch -- The RIGHT gear down light went out and
> the LEFT gear up light went on (hopefully a simple
> crossed wire) AND got a 2.5 amp draw and the gear
> switch broke to the off position after several seconds
>
> Only two things scare me and both of them are
> electricity, so I wouldn't have been able to do any of
> this without the able help of some airport buds (Ken
> and John). I hope I've given those who know something
> about this enough information to narrow things down
> for me.
>
> I've got a couple of specific questions in addition to
> the overall recommendations I hope will be
> forthcoming:
>
> - What electrical component do you think was making
> the noise described in troubleshooting steps 1 and 2?
>
> - It looks like there are separate parts for the left
> and right landing gear squat switches; Is that true?
>
> - From anyone out there has removed the entire Russian
> electrical system and rewired new, how much time and
> money did that take? Do you have a parts list for the
> new system?
>
> - Does anyone out there have an electrical diagram for
> the Yak-50?
>
> Many thanks in advance to everyone who's read this far
> and to those who take the time to respond.
>
> Regards,
> Harry
>
> __________________________________________________
>
>
Message 14
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| Subject: | Re: Prop seal replacement and subsequent vibration-dynamic balan |
--> Yak-List message posted by: "Scooter" <yakk52@verizon.net>
thanks. i plan on double checking (to several decimal places) the prop angle.
i'm on the opposite coast from you and i am not flying this thing to california
:)
kregg(at)balancemyprop.co wrote:
> The only way to really reduce the vibration of the prop is to make sure that
> the blade angles are correct and making sure the hub serviceable too. Once
> that is done you should have it dynamically balanced. I specialize in
> dynamic balancing and vibration analysis. Every yak I balanced made a
> significant improvement in the vibration level. This is especially good for
> the gear reduction as well.
>
> Where are you located?
>
> You can also read more about balancing at www.balancemyprop.com
>
>
> Thanks
> Kregg Victory
> 408-836-5122
> www.balancemyprop.com
>
>
>
>
> --
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=61053#61053
Message 15
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|
| Subject: | Re: Yak-50 Electrical System Troubleshooting |
--> Yak-List message posted by: "Rob Rowe" <yak-list@robrowe.plus.com>
Hi Harry,
FWIW from what I know of the YAK-52 electrical schematics I'm hoping may extrapolate
to your YAK-50 diagnostics.
The breaker switches for the gear & instruments are probably both 5 Amps ... so
I'm assuming when you're quoting a 2-3 Amp draw you're reading this verbatim
from the ammeter gauge. If so then be aware that this gauge reads "x 10" ... in
which case you're seeing 20-30 Amps being drawn which is why the breaker cuts
out.
>From your general description of numerous problems occuring simultaneously I
wonder if you have something loose in your relay box that holds the lamp test
relay(s) ... causing shorts to various circuits ... so find the box labelled "
" or similar & take a look inside for anything loose, metallic & probably blackened!
Hope this helps.
Rob
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=61062#61062
Message 16
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|
| Subject: | Re: M14 Fuel Flow meter and JPI Engine monitoring |
C,raig,"
What are the "W" fittings, and where can I obtain them? Iam facing the s
ame installation on my Yak 50. Thankyou.
CLIff
-- "Craig Payne" <cpayne@joimail.com> wrote:
Dave, Just installed a JPI FS-450 before my trip to OSH. Works well once
the K-factor is adjusted. Luckily, there is an auto-adjust feature so y
ou enter actual used vs computed. I coupled mine to the Garmin and it wi
ll show NMPG, which is a great feature for adjusting power settings and
altitudes on long X-countries. With my aux tank I did 440 NM in light qu
artering headwinds. Would not have done it without the Fuel flow and GPS
coupled. Install is no big deal with the "-W" fittings...which I have i
nstalled on my M-14P. Craig Paynecpayne@joimail.com
<html><P>C,raig,"</P>
<P>What are the "W" fittings, and where can I obtain them? Iam facing th
e same installation on my Yak 50. Thankyou.</P>
<P>CLIff<BR><BR>-- "Craig Payne" <cpayne@joimail.com&g
t; wrote:<BR></P>
<META content="MSHTML 6.00.2900.2912" name=GENERATOR>
<P>
<DIV><FONT size=3>Dave,</FONT></DIV>
<DIV><FONT size=3></FONT> </DIV>
<DIV><FONT size=3>Just installed a JPI FS-450 before my trip to OSH. W
orks well once the K-factor is adjusted. Luckily, there is an auto-adjus
t feature so you enter actual used vs computed. I coupled mine to the Ga
rmin and it will show NMPG, which is a great feature for adjusting power
settings and altitudes on long X-countries. With my aux tank I did 440
NM in light quartering headwinds. Would not have done it without the Fue
l flow and GPS coupled.</FONT></DIV>
<DIV><FONT size=3></FONT> </DIV>
<DIV><FONT size=3>Install is no big deal with the "-W" fittings...whic
h I have installed on my M-14P.</FONT></DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV>Craig Payne</DIV>
<DIV><A href="mailto:cpayne@joimail.com">cpayne@joimail.com</A></DIV>
<DIV> </DIV>
<DIV> </DIV>
<P></P>
<pre><b><font size=2 color="#000000" face="courier new,courier">
</b></font></pre></body></html>
Message 17
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| Subject: | Re: M14 Fuel Flow meter and JPI Engine monitoring |
Craig and Cliff,
Do you all prefer the JPI 450 over the Shadin? I was given a relatively new Shadin
system but from what I see of the JPI 450 seems to be a little easier to work
with. Any one have the shadin mounted? I can not see that the Shadin interfaces
with a handheld GPS where the JPI will do so. The JPI also uses a 2 1/4inch
hole in the panel verse the 31/8" hole for the Shadin Digiflow. Any other
thoughts?
Doc
----- Original Message -----
From: netmaster15@juno.com
Sent: 9/11/2006 9:56:22 PM
Subject: Re: Yak-List: Re: M14 Fuel Flow meter and JPI Engine monitoring
C,raig,"
What are the "W" fittings, and where can I obtain them? Iam facing the same installation
on my Yak 50. Thankyou.
CLIff
-- "Craig Payne" <cpayne@joimail.com> wrote:
Dave,
Just installed a JPI FS-450 before my trip to OSH. Works well once the K-factor
is adjusted. Luckily, there is an auto-adjust feature so you enter actual used
vs computed. I coupled mine to the Garmin and it will show NMPG, which is a
great feature for adjusting power settings and altitudes on long X-countries.
With my aux tank I did 440 NM in light quartering headwinds. Would not have done
it without the Fuel flow and GPS coupled.
Install is no big deal with the "-W" fittings...which I have installed on my M-14P.
Craig Payne
cpayne@joimail.com
Message 18
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| Subject: | Re: [Norton AntiSpam] Re: Request for Info |
--> Yak-List message posted by: "Roger Kemp" <viperdoc@mindspring.com>
Flir,
It was a joke. Get a life or FOAD.
Doc
> [Original Message]
> From: flir47 <me262pilot@comcast.net>
> To: <yak-list@matronics.com>
> Date: 9/11/2006 11:29:12 AM
> Subject: Yak-List: [Norton AntiSpam] Re: Request for Info
>
> --> Yak-List message posted by: "flir47" <me262pilot@comcast.net>
>
> Hey Doc....get BENT!!!!!!
>
> --------
> Dont own a Yak unless you can afford to be married to a maintenance
schedule!
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=60972#60972
>
>
Message 19
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| Subject: | YAK-50 wiring schematic |
Hitman,
I have a schematic of the wiring for the 50 in my unfortunately hardcopy of the
YAK 50 technical discription. Contact me offline with a fax # and I will send
it to you in the AM from my office.
Doc
Roger "Doc" Kemp
viperdoc@mindspring.com
Aint no sound like a Radial
Message 20
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| Subject: | Red Air Fall Fling with a twist |
Well all planning to attend Red Air Fall Fling (12-15 OCT), a new twist has been
added. Terry "Pumper" Calloway has asked to teach a formation acro class for
those that have expressed an interest in formation acro. So it appears three
different classes will be running simutaneously at Red Air this year. A FAST clinic,
A Tactical clinic and for the select few (approx 6 at the most) a formation
acro clinic. Please direct your question to Pumper as to the requirements
for inclusion in this part of the clinic. Obviously, high performance formation
acro is not for the novice YAK/CJ driver but it does take flying our aircraft
to the next level. For those that have wanted go out and do formation barrel
rolls and loops, this is the time for you. The disclaimer is: Pumper has the
hammer on who's included in this course and it is not RPA sanctioned. RPA is
the signatory for the FAST and Tac clinic.
This Red Air Fall Fling promises to be a fun and interesting one!
So look at your calender and plan on coming up, down, or over to Selma, Al. If
you are planning on attending please go to the RPA website and sign up.
Thanks,
Doc
Roger "Doc" Kemp
viperdoc@mindspring.com
Aint no sound like a Radial
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