Aug 1st, 00, 05:10 PM
Hi there I have a 69Z with a 302 the engine was rebuilt for the previous owner with money no object.So I was told, all new parts, the motor is strong as hell but when it gets hot it used oil 4 qts. in less than 1K. The engine has less than 2K on it. ??????
Aug 2nd, 00, 09:27 AM
Just trying to toss out some ideas. Hope this helps..
That's scary. I don't want to ask a dumb question but do you know where the oil is going? If you ate 4 qts every 1000 miles, I'd think you would have lot's of oil somewhere. Do you have a lot of oil in the exhaust pipes? It sounds like too much oil for piston blow by unless there is a serious ring seating problem. How do the plugs look, are they gummed up with oil or do they look clean. Check them all, could be that one of bores is messed up. How about when you start up, are you seeing any smoke? Something like the famous "305" leaky valve stems? But 4 qts sounds like too much for that. Do you possible have a leak underneath that gets worse when the engine gets hot? Rear main seal? Look for a oil film all over the underside of the car. I have a hard time believing that engine could consume 4 quarts in 100 miles without having a persistent white cloud behind it.
1969 Z28, 406SB
[This message has been edited by Shawn (edited 08-02-2000).]
Aug 2nd, 00, 10:48 AM
My guess would be that once the engine gets hot, the rings may be collapsing on the pistons allowing oil to get into the combustion chamber and be burned off.
What do your plugs look like and are you getting any smoke out of your tail pipes and what color is the smoke???
Aug 4th, 00, 09:45 AM
You should check to make sure the intake manifold is properly torqued down. If not, oil can get sucked into the intake runners. Also, the intake could be warped, which would cause the same thing to occur.
Aug 12th, 00, 02:51 PM
Thank you guys for the help I will check out those things and let you know!