well, my friend remember a rebuild is never totally diy....First, If you
are leaking oil real bad you may have thrown a rod, this means a rod
broke and pierced the side of the engine. Let us hope this is not the case.

Second, decide how much money you want to spend... a junk yard engine
could probably be bought for 500 dollars and it would probably last a good number of years. European connection here in kentucky might have one.

Even If you throw a rod a rebuild might still be in order.... I would probably buy a worn out engine for 150 bucks and then combine the 2 to get one good engine.

The piston sleves have to be pressed out and pressed in... I usually just take it to my local napa.... I would also have them clean it and deck it...I normally take my heads to them as well and have them decked and cleaned and rebuilt. Then your job would be to put it all back together....

tell us where the oil is coming form