Is this an Exhaust Leak?

[lr172]

Originally Posted by rvsxer

Every exhaust leak I've seen showed as a white or light tan coating. If it's black you are too rich at idle.

Good point. I have only had exhaust leaks on my high performance engines and they run much richer than most.

Larry

[riobison]

Not necessarily true. If the crack is between the exhaust valve and the exhaust manifold, a compression check will not reveal a crack/leak in that area. We found that this past week on our #2 cylinder on our Warrior. It compression tested at 76lbs, but a cracked cylinder in the exhaust port was found.


I agree, I was pulling high 60's on my O-360 so technically a pass. But it still didn't feel right when running. So, I sprayed soapy water around the head and sure enough I had bubbles. Pulled the jug and found a crack between the bottom plug and exhaust valve.

[avrojockey]

Originally Posted by fl-mike

what color is your baffle material?

If I remember it was black

[theduff]

I?ve seen this strange orange color many times before. You have an exhaust leak at a minimum but looking around the sparkplug I suspect you may have a cracked head as well.😕

[avrojockey]

Originally Posted by theduff

I?ve seen this strange orange color many times before. You have an exhaust leak at a minimum but looking around the sparkplug I suspect you may have a cracked head as well.😕

Well...it doesn't give me a good feeling so the airplane has come off purchase list. Too many other great airplanes to even consider.