on my rebuilt gsr motor, so far i've got about 300 miles on it and everytime i look at the engine after i drive it, there is a small oil leak at the head gasket right above where the "B18C" is written.i don't notice any oil loss on the dipstick, but i am concerned..why is it leaking? what needs to be done? at about 800 miles i was gonna take it for a tune up, can i wait till then? or is this one of those things that needs to be done RIGHT NOW? thanks for all of the help.

 

Sounds like your Cylinder Head Plug is leaking. (Most call it a Cam Seal)
Those are prone to leaks.
If not that, then it could be your distributor O-Ring.

Both are very simple fixes.

 

no, the exact spot its leaking from is where u can see a little bit of the head gasket..(its metal right?) and its coming from there....is it ok to leave it like that for a while?

 

If you notice very little drop in your oil level, sounds fine. Just keep an eye on it and make sure it doesnt get much worse.

 

thanks. :-)