Quote Originally Posted by 49 Lincoln View Post
So last night we got the engine back in the 49 Lincoln and got it running good but we noticed an oil leak from the oil pressure sending unit on the back by the dizzy and manifold. It's a mechanical style with a copper line that just screws into the block by way of what appears to be a compression fitting. That fitting screws onto an adapter that looks similar to a brake bleeder screw, but it's obviously not, but looks like it.

I noticed oil coming out from where the tube goes through the fitting, is there a gasket that's supposed to be in there? Where can I find something to fix this?
Most use an 1/8 inch compression fitting. The barrell may be deformed from over tightning or tube cracked. A good auto parts or hardware store should have the 1/8 nut and barrel. Also check the threads those brass fittings are real easy to booger up the thread on em. I usually go to ACE and get half a dozzen barrels, they are small and if droped hard for my old eyes to find, and a couple of nuts when I put an engine back in. I hate oil leaks...........:3MILE:
I probably would just replace fitting in block, 1/8 npt x 1/8 inch compression, and cut about an inch of tube and go with new fitting barrel and nut. Hope this helps.