Topic: Compression issue
I've got a 56 Nash flathead 6 with compression issues and an oil leak. This is the first engine I've ever opened. I'm a complete novice. My only goal is to make it good enough to last one race.
Compression for cylinders 1-6 in psi is 35 35 70 55 90 0. I opened it up hoping to find a stuck valve or broken spring on cylinder 6. But I can't see any problems. All the valves open and close. They seem to seat okay. The pistons can be moved a tiny bit side to side when at tdc. cylinder 6 doesn't seem any worse than the others in this regard. There was a bit of scorching on the deck between cylinder 6 and the end of the block. The oil leak was also at the rear of the block although I have not found the source yet.
Is it possible that both are due to a gasket problem at that spot? If so, what else would I look for to confirm it? If not, what do I do next? I'd rather not take on a whole rebuild.
I hope to have the car ready for Thunderhill.
IOE is on my bucket list. So is doing some hot laps at Monaco. I figure i'll start with IOE.