i bought a well used 85 n/a for $200. the only symptom of a problem was an oil leak. it's large as oil leaks go, but i thought that for $200 plus repairs i was getting a bargain. after it got towed home i figured that i'd start in on fixing the leak learn alot more about what was going on with the motor. so i started looking. and i found two leaks. one is very easy. on the exhaust side the cam cover gasket spays onto the heat shield and and makes for a smokey engine bay. but there's another one that near as i can tell is flowing from the passenger side of the motor. and it flows. near as i can tell the motor is losing quarts of oil when i run it for fifteen minutes at a time(or less). my brother is a working mechanic with a few years experience (no expert knowlege)(just some common sense) , and he thinks the rear main seal may be to blame... he has a friend who will do a full gasket and seal replacement with him for parts money($150) but i can't afford to waste the time or money. are we on the wrong track?