I've been unsuccessfully chasing an oil leak in my Crossflow powered '72 Mallock 11b for quite some time. The short version is I finally took the car to someone who pulled the engine, found a pin hole in the steel pan and a fitting mismatch, resealed the pan (way better than I had), and thought I was all good. No leaks when just starting and running - which was true before I had this work done. First race and it's leaking like a sieve - again. But, no oil on the back of the flywheel, no drip line from the main seal area.
I've pulled the engine again, and decided that maybe it's a line leak, or a fitting leak, or the dry sump tank, which is placed behind the engine right in front of the firewall.
The tank is a two piece easy clean. My question is, how tight should the clamp be (I know, tight enough so it doesn't leak )? Sometimes over tightening can create a leak. I've ordered a new o-ring.
Thanks.
Steve