Help me find my Oil leak!

[Leavell119]

Ok guys.. Let me paint a picture.... I bought a 94 NA for next to nothing.. It was leaking oil and other fluids everywhereeeeee. I pulled the motor apart (with it still in the car) and did the 120k reseal/timing rebuild.. I did everything I could.. Oil Pan gasket, valve cover gaskets, front main seal, cam seals, timing belt, timing belt tensioner assmbly.. etc.. Ive also done a new rack n pinion, Ps steering pump, and alternator... HERES MY PROBLEM.. My motor leaks oil.. It comes from somewhere above, leaks down to the front subframe area and almost looks like a leaky rack.. My power steering fluid level is not moving, My brake fluid level is not moving either... However.. the motor will leak maybe a couple drops a night if you dont drive it hard... After racing an Autox event this saturday, it pushed about 1/4 of the oil out of the motor and on to the floor during the night. Its a seaping leak as it does not drip while running.. It takes hours for the drips to reach the floor..

I have inspected everything I can, I cannot figure out where this leak is... When the oil level falls below full, the car also has a lifter tick.. But it goes away when refilled with oil. When I am under the car with a work light, I see one area that seams to be wet around the head gasket.. But from my knowledge, the car would not run worth a s*** if it was the head gasket.. IDEAS ANYONE?

[Ace2cool]

Well, for starters, you're wrong about the head gasket. There's a bunch of different ways a HG can fail. Not all of them will compromise the compression.

However, help us localize the issue. Front, left, right, back? Is there any visible oil on the block anywhere? Is the car a TT or N/A? Your profile only says Z32 Fairlady. Have you checked your PCV valves?

[Leavell119]

It's an NA.. Yes theirs oil on the block.. It seems to fall right below the power steering area.. The oil on the block I can visually see appears to be at the back of the motor/ corner. The last cylinder that gets closest to the firewall on the passenger side.. It's doesn't look like a bunch but it does appear wet around the head gasket area. don't get me wrong, I drive the car everyday.. But when I leave a parking spot, I'm leaving some heavy spots after racing this weekend.. Again falls below the ps/ alt area...

[Leavell119]

And I'm sorry for lack of knowledge but What do I do to check the pcv valves?

[Ace2cool]

So it looks like it's running down from behind, and ending up at the front, near the PS pump? Is there any oil visible above the head? If so, we can rule out the head gasket being the issue. If it is wet above, I'd be looking at valve covers, even though I know you said you did them, it's easy to mess the exhaust ones up, since they are sealant. Or the half moon plugs themselves. Did you replace those or no?

The PCV valves are just check valves. Blow air through one way, won't blow through the other way.