Today's Message Index:
----------------------
1. 03:55 AM - Re: Re: Oil filter (Craig Payne)
2. 07:34 AM - M 14 electric start on e bay (N395V)
3. 09:20 AM - Re: Re: Re: Oil filter (Walter Lannon)
4. 11:59 AM - Nanchang Generator Problem (Jay McIntyre)
5. 12:44 PM - Re: Yak-List Digest: 7 Msgs - 03/04/09 (Skip Slyfield)
6. 01:20 PM - Re:Re: Re: Re: Oil filter (Cpayne)
7. 03:27 PM - Re: Nanchang Generator Problem (Yak Pilot)
8. 04:58 PM - Re: Oil filter (keithmckinley)
Message 1
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| Subject: | Re: Re: Oil filter |
I let the quoted post from Walt pass the first time because it wasn't specifically
aimed at the system I sell. But now I see it has been offerred up as specific
answer to questions about the quality of the goods I sell.
Just what kinds of "high scavage oil pressures" are we talking about here?
Craig Payne
cpayne@joimail.com
Message 2
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| Subject: | M 14 electric start on e bay |
http://cgi.ebay.com/ebaymotors/Other-Vehicles-Trailers_Aircraft__M-14P-360-h-p-Radial-Engine_W0QQitemZ330311544690QQddnZOtherQ20VehiclesQ20Q26Q20TrailersQQadiZ2829QQddiZ2828QQadnZAircraftQQcmdZViewItemQQptZMotors_Aircraft?hash=item330311544690&_trksid=p4506.c0.m245&_trkparms=72%3A317%7C65%3A12%7C39%3A1%7C240%3A1318
--------
Milt
2003 F1 Rocket
2006 Radial Rocket
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=233350#233350
Message 3
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| Subject: | Re: Re: Oil filter |
Depending on temperature of the oil scavenge pressure could reach 200 psi or more.
There is no pressure regulator in the system.
Harvard trainers which operated throughout the Canadian winters were equipped with
an in-line, adjustable, bypass valve which, at 83 PSI would open full line
capacity directly to the oil tank. This bypassed the oil cooler and the lower
capacity valve located there. This system not installed on the T6.
Craig, I have no idea what system you sell nor was I even aware that you sold one,
but If that is the case may I suggest you compare the internal construction
of your filter unit to a standard, certificated, aircraft oil filter ( Champion,
etc.).
If it compares favourably in paper element thickness, can wall thickness and other
pressure retaining features it should be fine.
Walt
----- Original Message -----
From: Craig Payne
To: yak-list
Sent: Thursday, March 05, 2009 3:54 AM
Subject: Yak-List: Re: Re: Oil filter
I let the quoted post from Walt pass the first time because it wasn't specifically
aimed at the system I sell. But now I see it has been offerred up as specific
answer to questions about the quality of the goods I sell.
Just what kinds of "high scavage oil pressures" are we talking about here?
Craig Payne
cpayne@joimail.com
Message 4
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| Subject: | Nanchang Generator Problem |
OK... if flashing the field is the answer, how does one go about it on the
Nanchang?
I have done a conventional western generator/regualtor before by following
the procedure in the A&P manuals but would like to know how to do the
Nanchang!
Cheers, Jay
Message 5
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| Subject: | Re: Yak-List Digest: 7 Msgs - 03/04/09 |
Hello Jay from New Zealand. I would suspect your voltage regulator. There
are two main types, the original factory VR's that bolt onto the carry
through structure behind the front seat and the Chinese Air Force modified
solid state regulators that were mounted on the cockpit side of the
firewall, well, actually the structure just aft of the firewall. How do I
know this, you ask, because mine quit working and burned up a generator. SO,
if you need expert asisstance in this area contact Kieth Harbour of AVCRAFT
fame in Columbus, Nebraska nad he can walk you through it. And if you need a
new generator, there's one siting in his hangar.....
Skip Slyfield
norske.fly@gmail.com
On Thu, Mar 5, 2009 at 12:59 AM, Yak-List Digest Server <
yak-list@matronics.com> wrote:
> *
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> ---
> Total Messages Posted Wed 03/04/09: 7
> ----------------------------------------------------------
>
>
> Today's Message Index:
> ----------------------
>
> 1. 07:16 AM - Re: Oil filter (Craig Winkelmann)
> 2. 09:28 AM - AIR SPEED INDICATOR (CZ)
> 3. 10:04 AM - Re: AIR SPEED INDICATOR (Jim)
> 4. 12:04 PM - Re: AIR SPEED INDICATOR (Terry Calloway)
> 5. 03:42 PM - Nanchang Generator problem (Jay McIntyre)
> 6. 03:55 PM - Re: Nanchang Generator problem (Donna or Steve Hanshew)
> 7. 04:29 PM - Re: Nanchang Generator problem (talew@bellsouth.net)
>
>
> ________________________________ Message 1
> _____________________________________
>
>
> Time: 07:16:14 AM PST US
> Subject: Yak-List: Re: Oil filter
> From: "Craig Winkelmann" <capav8r@gmail.com>
>
>
> >From the Yak-list Archives...Walt Lannon posted:
>
> "I would recommend either ADC or Airwolf. My personal preference is the ADC
> micro-screen
> unit rather than the spin-on. ADC provides both types, Airwolf is spin-on
> only.
>
> I would avoid cheap non STC'd systems which invariably utilize spin-on
> filters
> that are not capable of safely handling high scavange oil pressures.
>
> Like most other things in aviation you get what you pay for.
>
> Walt"
>
> I installed the ADC micro-screen filter in my CJ. In the past, ADC has
> also been
> a sponsor of ARS. It is a well made product.
>
> Contact Barry Hancock about installation as he did the install in my plane.
> We
> put it on the firewall after relocating the air start solenoid (may not
> have
> to do this on later model CJs). I've also seen pictures of it placed in
> the belly
> of the aircraft.
>
> Craig
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=233138#233138
>
>
> ________________________________ Message 2
> _____________________________________
>
>
> Time: 09:28:15 AM PST US
> Subject: Yak-List: AIR SPEED INDICATOR
> From: "CZ" <chriszimmer2002@yahoo.com>
>
>
> What are the different ways CJ people have dealt with ASI? Someone
> mentioned
> to me refacing gauges once? Does anybody have the contact info for that?
> Or
> feel free to make relevant suggestions.
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=233166#233166
>
>
> ________________________________ Message 3
> _____________________________________
>
>
> Time: 10:04:59 AM PST US
> From: "Jim" <jimscjs@mbay.net>
> Subject: Re: Yak-List: AIR SPEED INDICATOR
>
>
> ----- Original Message -----
> From: "CZ" <chriszimmer2002@yahoo.com>
> Sent: Wednesday, March 04, 2009 9:27 AM
> Subject: Yak-List: AIR SPEED INDICATOR
>
>
> >
> > What are the different ways CJ people have dealt with ASI? Someone
> > mentioned to me refacing gauges once? Does anybody have the contact info
> > for that? Or feel free to make relevant suggestions.
> >
> >
> > Read this topic online here:
> >
> > http://forums.matronics.com/viewtopic.php?p=233166#233166
> >
> >
> >
>
>
> ________________________________ Message 4
> _____________________________________
>
>
> Time: 12:04:06 PM PST US
> From: Terry Calloway <terrycalloway@mac.com>
> Subject: Re: Yak-List: AIR SPEED INDICATOR
>
>
> Chris,
> I replaced the Airspeed indicator in my CJ. I just called an
> instrument shop in Wichita and they screened the face the way I wanted
> and calibrated it, then sent it out to me. DO NOT send the original
> Chinese or Russian instrument to them. There are a lot of reasons not
> to do this and you can find from previous Yak-List discussions why not
> to do this.
>
> The shop I use is Air Capital Instruments in Wichita. A one man shop
> "Sam" and he does a great job, has about everything you could ever
> need and is very reasonably priced. His number is 316-942-8668.
>
> I suggest you have him screen the ASI with both Knots and Kilometers
> per hour. It will really come in handy when flying with other Yaks
> and CJ.s
>
> Regards,
> tc
>
>
> ________________________________ Message 5
> _____________________________________
>
>
> Time: 03:42:12 PM PST US
> Subject: Yak-List: Nanchang Generator problem
> From: Jay McIntyre <cjaviator@gmail.com>
>
> Hi all.
> As generator theory is not my strong point I shall put forward the
> following
> problem in the hope someon can point me in the right direction (having read
> and digested the traffic early this week!)
>
> We are preparing to put a factory 'overhauled' Nanchang back in the air
> after it has sat on the airfield here for 2 1/2 years. All works perfectly
> except the generator...
> When the engine was first run it appeared to be fine. 2nd run and the
> generator light appeared to acting correctly at low RPM (on and off at
> @1000
> RPM, but the ammeter was jumping all over the place. At higher RPMs the
> ammeter was jumping all over the place and the light was going on and off
> as
> it jumped around from load to unload.
> After this run we sorted out a few other minor problems and checked the
> generator brushes and springs. All appears to be good with new brushes
> fitted, although one seemed a bit stiff in the housing.
> After freeing it up we took it out and ran it again with the result that
> the
> generator light now stays on and steady at all RPMs.
>
> Someone suggested that the generator might need flashing after having sat
> around for a long period of time, but I don't believe that this would be
> the
> case given that it was kind of operating to start with.
> Any assistance here would be greatly appreciated
>
> Regards, Jay
> New Zeland
>
> ________________________________ Message 6
> _____________________________________
>
>
> Time: 03:55:50 PM PST US
> From: "Donna or Steve Hanshew" <dhanshew@cinci.rr.com>
> Subject: Re: Yak-List: Nanchang Generator problem
>
> Flash it.
> ----- Original Message -----
> From: Jay McIntyre
> To: yak list
> Sent: Wednesday, March 04, 2009 6:40 PM
> Subject: Yak-List: Nanchang Generator problem
>
>
> Hi all.
> As generator theory is not my strong point I shall put forward the
> following problem in the hope someon can point me in the right direction
> (having read and digested the traffic early this week!)
>
> We are preparing to put a factory 'overhauled' Nanchang back in the
> air after it has sat on the airfield here for 2 1/2 years. All works
> perfectly except the generator...
> When the engine was first run it appeared to be fine. 2nd run and the
> generator light appeared to acting correctly at low RPM (on and off at
> @1000 RPM, but the ammeter was jumping all over the place. At higher
> RPMs the ammeter was jumping all over the place and the light was going
> on and off as it jumped around from load to unload.
> After this run we sorted out a few other minor problems and checked
> the generator brushes and springs. All appears to be good with new
> brushes fitted, although one seemed a bit stiff in the housing.
> After freeing it up we took it out and ran it again with the result
> that the generator light now stays on and steady at all RPMs.
>
> Someone suggested that the generator might need flashing after having
> sat around for a long period of time, but I don't believe that this
> would be the case given that it was kind of operating to start with.
> Any assistance here would be greatly appreciated
>
> Regards, Jay
> New Zeland
>
>
> ________________________________ Message 7
> _____________________________________
>
>
> Time: 04:29:50 PM PST US
> From: talew@bellsouth.net
> Subject: Re: Yak-List: Nanchang Generator problem
>
>
Message 6
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| Subject: | Re:Re: Re: Re: Oil filter |
Walt,
Thanks for the explanation. I know what I have, the problem was a careless post
on the 'list in reply to a question about the viability of the system I sell.
The elements I sell have a 200PSI rating, they are industrial grade not automotive.
My base units have a 15PSI bypass valve with in/out taps for those who
want to rig a monitor. I can also get other PSI settings as well. There are dozens
of CJ's out there with the same setup, running for many years now.
The original post about a cold weather failure was not very inclusive about the
nature of the installation. Therein, may lie the problem. My install instructions
stress the necessity of an end-to-end solution.
I can still get the heavy duty Marion elements with 'glass media but you can't
cut them open and peel back the media. Myself, I send out a sample from each change
and keep an analysis track.
Craig Payne
Message 7
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| Subject: | Re: Nanchang Generator Problem |
I have never worked on a CJ in my life.- I do not know beans about it.=0A
=0AThere is nothing wrong with flashing your generator... this is usually d
one by applying a quick burst of battery voltage to the brushes (+ and - co
nnections) with the generator spinning.- Plus to plus mind you.- =0A=0A
However, if it uses a generator, it has to have a cut out relay.- Just a
fact of generator design.- Before you go nuts on this thing, check the vo
ltage AT THE GENERATOR when it is running.- Do not depend on "indicator l
ights" to determine whether a generator is putting out power,- use a mete
r.-- =0A=0ARule of thumb about something that was sorta working and the
n stopped dead.- Go to where the last human being l;aid their hands on it
and look for problems there.- As in... you messed with the brushes, you
noticed something not quite right, you fixed it... now it does not work at
all.---If a commutator brush is not touching the commutator properly.
... the generator will go dead.- =0A=0AFurther, your problem sounds exact
ly like a problem with brushes and springs.- I mean your FIRST problem.
- =0A=0AAt the risk of getting-into another "discussion"... this does n
ot sound like a generator that needs a flash.... but there are many ways to
approach a problem and never-forget I have way too much time on my hands
.- =0A=0AOh... by the way...- a flash may indeed arc over to a poorly s
eated brush and voila, it starts working.- Or it may not.-- If flashi
ng it does not work... look at those brushes again.- If that does not wor
k.... read my last email.- =0A=0A=0AMark Bitterlich=0AN50YK=0A=0A=0A-
=0A=0A________________________________=0AFrom: Jay McIntyre <cjaviator@gmai
l.com>=0ATo: yak list <yak-list@matronics.com>=0ASent: Thursday, March 5, 2
009 2:55:53 PM=0ASubject: Yak-List: Nanchang Generator Problem=0A=0A=0AOK..
. if flashing the field is the answer, how does one go about it on the Nanc
hang?=0AI have done a conventional western generator/regualtor before by fo
llowing the procedure in the A&P manuals but would like to know how to do t
=========================0A
Message 8
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For what it's worth I purchased a CJ with a system, if not Craig's, is exactly
the same right down to the Marion Hyd Filter.
Recently the system suffered a catastrophic failure on the ground.
I use Phillips 25-60W radial engine oil and my aircraft had been in an unheated
hangar during a cold night. It was about 25 degrees the morning I was to fly.
Prior to engine start, I had my sump and tank heater on for two hours. I did
not have a strip heater on my oil cooler. Prior to engine start the oil temp indicated
just above 10C
After engine start, pressure and temp were normal for the conditions and the engine
was at idle for 2-3 minutes before I added power to taxi.
As I added power the system failed. The oil filter actually blew up like a balloon,
but it was the threaded shaft ( for the filter) on the housing that suffered
a shear failure.
I do know that even cold hyd fluid has a lot less viscosity than my engine oil.
I also know that the by-pass in the housing was insufficient in my case.
It's very small, maybe 1/8 or 3/16 in diameter. Also, Without going back to my
logs I was about 25 hours from the last oil change. I suspect a combination of
the small filter size and 10 micron paper as well as the small by-pass led to
the failure.
It's up to you to evaluate each system for what it was designed to do, what you
plan to do with it, and how your operational environment will affect it
I've installed the ADC spin on system for radial engines. I like the fact that
it uses aviation grade oil filters, it is STC'd, it has a very large by-pass,
and can accept a chip detector system.
To each his own.
Keith
--------
Keith McKinley
700 HS
KFIT
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=233412#233412
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