The International Cessna 170 Association

Any comments on the Lycoming O-340 A1A 170 Hp engine. Every thing from durability, performance, available parts etc. are welcome. I understand the A1A model is the only version of the O-340 series that supports a hydraulic adaptor for the constant speed prop option. Comments about the constant speed...

Hi all and thanks for the responses. A couple of take always are, metal parts don’t wear while sitting. Atmosphere and surroundings have a lot to do with it. Valve replacement might be a good preventative maintenance suggestion for sticking valve problem in the future. Also, I read the same article ...

I’m on the hunt for a C170B and my question to the group pertains to the C145 & O-300 Continental engines. How long can these engines sit inactive before it becomes detrimental and an end up as a major repair. TBO according to Continental Motors Service Information Letter SIL 98-9E states 1800 h...

Thank you all for your comments on this subject and this is exactly why I needed to be apart your knowledge base. Hanger talk is great but sometimes information gained is flat out wrong. This all came about because a seller of an C170 claimed to have this undocumented mod which caused me to rethink ...

My bad, I probably misunderstood the conversation between cylinders vs pistons or the aircraft owner I had the discussion with didn’t know either. In the event you had purchased an aircraft with an undocumented piston mod and found out about it later what would be the corrective action. Do a top end...

Hi all General question about over sized cylinders installed on the O-300 Continentals. I had a conversation with a C170 owner who claimed he has over sized cylinders on his aircraft which gives an additional 10-15 horse power. Other forums have had general discussions about this topic and mentioned...