i just bought a 91 tracker for parts runs great but there is oil all over the engine any one know what this could be from or where it could be leaking from was thinking about driving this one instead the oil doesnt seem milky and the preston seems good so dont think its coming from the head gasket but any chance it could be the head gasket gone?

valve cover gasket or distributor or front cam seal.

My bet is valve cover gasket.

You can find out by washing the engine at the carwash (be careful where you point the wand...) and then drive it a bit to see where the new oil appears.

You can get a fresh valve cover gasket cheap and install it with a gentle tightening of the cover bolts to see if that stops the leak.

I don't think the head gasket should cause any leaking of oil without some of the other tell-tale symptoms that you mentioned.  Does the compression look good on each of the cylinders?

Finally, check out Ack's FAQ (the link is in my signature) for more useful information!

check the oil sending unit esp if it is spraying all over

Process of elimination. Start from the top down. I washed mine and found the valve cover gasket.  Washed it then found the distributor and distributor shaft housing o-rings failed.  Pcv wasn't working right the way the hose was set up, fixed that. Washed it. Leaking out the timing cover. Replaced the seals along with the timing belt.  Washed it. Oil pan gasket leaked. Replace and washed. Trans oup put leaked, fixed. Inputs and outputs on transfer leaked. Fixed. All in all, the parts seamed to be less than $120.00 although I did have a shop do the timing belt and front seals. I did the rest. No more leaks at all. Now if I inspect during regular oil changes, I can catch em as they happen.  All pretty easy work, just time consuming but well worth it. Adam.