iceman89gt

i hate to say it but i think the ole 306 is about to see her last runs. i ran her yesterday hard while street racing and saw smoke in the rearview, but the oil looks fine on dipstick and no leaks on motor. the t5 is leaking some, i guess it could maybe be it, but as long as i am shifting under about 4500 to 5000 rpm theres no smoke. pulled plenum and there is some oil in there and in intake. i dont know, but lets hear some theories. i think it may be ring wear and the motors just getting loose because i run the guts out of her all the time, shes strictly a toy.

90Lxstanger

Sucks to hear that, sounds like it could bering wear or valve guides, it is smoking from the exhaust right?

XSRACINGGT

valve seals or rings could be shot man, could be rear main too? leakin on the exhaust?

iceman89gt

yea from exhaust, or so im guessing. i have turn downs so its hard to tell and it only smokes when run above 5500 rpm through the gears. its ok that just gives me a reason to tell the wife i need to start on the 351 winsor for it.

iceman89gt

rear main is tight, no leaks anywhere on motor.