My Piper Colt has a strong odor of engine exhaust in the cockpit. The mechanic says he is sure the muffler is good, and turning off the heater does not change the amount of odor. Please share: Continue Reading →

I always look forward to hearing what you have to say, so here is my question: I fly a 1954 Piper PA-22/20 with an O-320 (no suffix) Lycoming, with about 975 hours since major. I fly it 150 to 175... Continue Reading →

I probably will buy a C-172 with a new — actually rebuilt — O-310-H2AD engine. Do you know if this engine is reliable? Does it meet the latest factory changes? Continue Reading →

This seems like a stupid question but I’m going to ask anyway. Did Lycoming ever have a service kit to put hydraulic lifters into the O-235? Continue Reading →

I have an O-235 Lycoming engine. The assembly case has not been drilled to accept an oil cooler. Continue Reading →

QUESTION: I have a question on my IGO-540-A1A, an engine with a rated RPM of 3,400. When it comes time for an overhaul, S.I. 1037K calls for intake valve LW-12949. Continue Reading →

For those of us who reside in northern climates, it’s time for us to begin thinking about what we need to do to get our aircraft ready to put in the barn for the winter. Continue Reading →

QUESTION: I have had instructors insist that I lean the engine while taxiing my O-320 Lycoming. Continue Reading →

QUESTION: A friend has an O-320 in his hangar. I have only the following data, and am wondering how or where I can use these data to determine exactly which engine this is. Data plate says: O-320, eng #2689-27. The... Continue Reading →

I have a Lycoming O-320-D2A that will be going into a Wittman Tailwind. The crankcase and crankshaft are yellow tagged. The camshaft is really pitted and will need to be replaced. I imagine the followers will need replacing also unless... Continue Reading →