Darick, I'm leaning heavily in that direction. Found a small puddle of oil on the floor yesterday after just an hour's flight. A mechanic I spoke to at Oshkosh recommended the ECI cylinders and a new exhaust and said he fixed a plane with similar oil leaks with the new cylinders.
Mac McMahon N94184 VKX Friendly, MD --- In [email protected], c.d.gu...@... wrote: > > I had a similar problem after purchasing my coupe...used a lot oil, maybe 1/2 > quart per hour....what a mess. My mechanic checked and fixed all the usual > places noted by others who have responded on this topic. It helped a little > bit but it still used a lot of oil. > > > Many people said the telltale evidence of blowby was dirty looking oil after > only an hour or two of flying after an oil change. So my mechanic pulled the > cylinders off and found pits in all the cylinder walls. The logs showed only > 10 hours in 10 years, all of which was short trips, obviously resulting in > rusting from non-use. > > > I keep my coupe at a grass runway airport which limits regular flying during > the winter months, so I opted for the ECI Titan cylinders. Since installation > and about 12 hours running time, it's only used slightly over a quart. > Needless to say, I'm very pleased. If you can't fly frequently and have the > money for the new cylinders, I'd highly recommend them. > Darick > 415C > York, Pa. > > ----- Original Message ----- > From: "pilotmac818" <pilotmac...@...> > To: [email protected] > Sent: Tuesday, August 3, 2010 9:00:57 AM > Subject: [ercoupe-tech] Oil leak from "blowby" > > > > > > > I replaced the pushrod tubes believing them to be the cause of the presistent > oil leak only to find oil continued to leak. The acknowledged expert in > engines in this part of the world says the oil leak is coming from a variety > of sources caused by blowby because they didn't use new cylinders in the > overhaul and the cylinders and cylinder wall is rusted causing excess > pressure in the crankcase. He recommends new cylinders which will reduce the > leak but may not completely eliminate it. A mechanic I spoke to at the type > tent at Oshkosh advised to use ECI titanium cylinders and a new stainless > exhaust manifold and thinks that will cure virtually all of the oil leak. I > would appreciate hearing from folks who have had a similar problem before I > start down the road of a $5000 investment. > > Mac McMahon > N94184 > VKX Friendly, MD >
