if you notice a problem during a flight after landing open cowl feel the 
cyc's the
  noticeably cool one is the problem or if sits in hanger over night start it 
up for
 couple Min's then turn off again feel the cyc'c  again the bad one will feel 
noticeably 
 cooler. chiming in late on problem however may help someone in future
                                                                    Earl J

 

--- On Mon, 8/11/08, Larry Snyder <[EMAIL PROTECTED]> wrote:

From: Larry Snyder <[EMAIL PROTECTED]>
Subject: [ercoupe-tech] C-85 Valve Still Sticking
To: [email protected]
Date: Monday, August 11, 2008, 8:06 AM






Wise ones,

I went out to the airport yesterday and double checked that my valve 
is still sticking, and sure enough, no compression in one cylinder. 
I removed a plug from the left rear cylinder and the behavior was 
the same with or without the plug - engine pulled through each 
cylinder and bounced off the compression of the next, except one, 
and the prop would spin right past it. I'd hear the click from the 
magnetos TWICE on that pull. 

So I'm figuring that's the cylinder with the problem, so I took the 
cowling and nosebowl off the plane. At the same time, when I removed 
the cap from the cowl tank, the cork fell off it into the tank. 
Sigh. Nothing is easy.

Here is my plan, let me know if this sounds good:

1. Have mechanic verify that I identified the correct cylinder.

2. Have mechanic remove the suspect cylinder.

3. If the valves are good and it's just sticking, have mechanic 
clean up the valves and guides.

4. If the valves are NOT good, ship the thing to Central Cylinder in 
Omaha, who installed it two years and 300 hours ago.

5. Have mechanic reinstall cylinder.

6. I'll button her back up, except I will have the mechanic 
reinstall the prop, making sure torques are good and it's properly 
safety wired.

Does this sound like a good approach?

Thanks! I hate having a non-flying plane, even when I don't have any 
immediate travel plans...

Larry
N99340

 











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