OK folks, prepare for a steady stream of questions. My sons (14) wants to overhaul the engine in our 240. Symptoms are low oil pressure - 10 psi hot with 15w40 - and a lot of smoke from the breather. I am beginning to gather info, will probably tear into it after Christmas. I plan to get compression readings on each cylinder this weekend. If we get into it I want to do it right, not half way. So, first round of questions -
1. What should the compression be?
2. Engine kits don't include cam bearings - I am assuming at this point that they will need to be replaced. Are they normally OK?
3. What bore diameter kits are available for a C123? Might as well get all I can while I am at it, right?
4. Is there normally a need to rebuild the oil pump?
I'm sure I will ask a million more questions, thanks in advance for your patience and assistance.