There's another old trick too. Rather than risk burning your fingers, take a kid's crayon and gently mark the 4 exhaust stacks. Crayon residue will bubble on the good stacks, and just melt and run on the cool stack.
Jerry E. -----Original Message----- From: [email protected] [mailto:[EMAIL PROTECTED] Behalf Of earl johnson Sent: Monday, August 11, 2008 10:55 AM To: Ercoupe-tech Group Subject: Re: [ercoupe-tech] C-85 Valve Still Sticking 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
