zfecht96

Ok so after a complete rebuild on my 1996 f150 5.0 everything works well other then one issue. I'm fouling plugs and burning through oil about a quart every 700 miles. So far Iv got heavy blue smoke on start up but no other time and the plugs when I pull them especially the ones in the rear of the engine are real nasty. I removed the intake and replaced the valve seals on every valve and when I did that I noticed a lot of oil in my upper intake. Enough to pour out a puddle. (I'm assuming from my pcv valve from how it connects) so I replaced the valve seals and pcv and still have the same problem. The plugs are fouled and Iv still got oil burning. Iv got 120psi in every cylinder so I don't think it can be rings. But I completely out of ideas??????

qdeezie

Did you change your valve covers or are you still using stock covers?

zfecht96

im still using the stock ones there's one with th pcv on the back and there's one that connects to my air filter next to my oil fill on the front