Thanks. I'll definitely check that tube. Thanks to the folks who coached me on this site I told my engine guy that I decided against replacing the cylinders at this time. We're going to clean all the oil-fly the plane for about an hour-then spot all the oil leaks and replace all the gaskets that we can. Won't be perfect but does save $4000.
Mac McMahon N94184 VKX Friendly, MD --- In [email protected], "mduke" <marty-d...@...> wrote: > > > > I had a blowby problem with my Coupe that was very frustrating too. Oil > would seep out of the crank seal (and on to the windscreen) and out of a > couple of the pushrod tubes. I had three different mechanics replace the > crank seals with new ones, to no avail. Finally, one of them said "try this" > after bending my breather tube back slightly behind the exhaust pipe and > slightly backwards. That fixed all my problems. We had switched exhaust > earlier, and didn't realize that the positioning of the tube is quite > critical. By having it slightly pointed the wrong way, it created high > pressure in the crankcase and problems only showed up in flight when oil > started showing up on the upper cowl and windscreen. > I recently installed new exhaust again, and had the same problem show up. > Again we had to play with the positioning of the tube, and added a short hose > to get the thing "downwind" and all was good again. I hope that your problem > is a simple as that. > Marty Duke N846MD KRNT >
