dougsappllc(at)gmail.com
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 Posted: Mon May 17, 2010 8:41 am Post subject: No Title |
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I have found a few "shop service kits" for this QDF-1start valve, the kit consists of the rubber parts in the valve. In the kit are 5 rubber parts: 1 each QDF-1-10, 1-14, 1-18, 1-22, 1-16. See page 23-2, fig 3.3 in the Airframe Accessory Overhaul manual for a cross section view of this valve. The best exploded view of the valve is found in Vol 5, page 64, fig 1-16 of the CJ6 illustrated parts book. With this in hand you should have no problems (well less problems) with the repair/service of the pneumatic side of this valve.
Doug
On Sun, May 16, 2010 at 5:25 PM, Yak Pilot <yakplt(at)yahoo.com (yakplt(at)yahoo.com)> wrote:
[quote] Doug's advice is right on the money. On the YAK-50, I just take off the top line (output) and do the same thing. Flushing it out with WD-40 will do the trick.
Fact of the matter is... I dorked around with this valve for a long time and then finally ordered a replacement from Doug. It took about 30 minutes to replace it, and I am slow.
It took a lot longer to clean it every time.
A SMART person keeps spares on hand of items that are known to fail and cause you grief! This part is one of the above. Order TWO from Doug, while he has them!
Mark
--- On Fri, 5/14/10, doug sapp <dougsappllc(at)gmail.com (dougsappllc(at)gmail.com)> wrote:
[quote]
From: doug sapp <dougsappllc(at)gmail.com (dougsappllc(at)gmail.com)>
Subject: Re: Yak-List: RE:
To: yak-list(at)matronics.com (yak-list(at)matronics.com)
Date: Friday, May 14, 2010, 2:31 PM
Guys, Remove the hose FROM the start spider on the engine, Tie wrap a shop towel around this end of the hose and let it hang down, next fill the line going TO the solenoid with WD40, then hit the button or depress the lever. This will flush out the solenoid. This will help if your problem is junk in the system, but will not help if your problem is in the electrical portion of the valve (which it normally is).
I have them new in stock if needed.
Doug
On Fri, May 14, 2010 at 10:49 AM, Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E <mark.bitterlich(at)navy.mil> wrote:
[quote]
--> Yak-List message posted by: "Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E" <mark.bitterlich(at)navy.mil>
Terry,
I believe the starter solenoid on the CJ-6 is the same as the YAK-50.
There are two types, one without the external actuator lever and one
with. The guts inside are the same on both. They are not adjustable.
However, you can take them apart and clean them and usually get a little
more life from the things. I did that and managed to get another two
years out of one, but eventually had to replace it.
You can take the guts out of one without the external lever and put them
into one WITH the external lever if you want to.
Mark Bitterlich
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