I think I have either a stuck valve or a bad head gasket. When I start the car up, it doesn't smoke. However after about 5 min. It starts blowing smoke at about 6000 rpm and acts like it has a rev limiter in it. The motor is out of a 92 dx. I keep checking the oil for water consistency and the radiator for low coolant, but neither is happening. The oil is still thick (20- 50 Pennzoil) and the radiator is still full. I'm stumped on this. Any help?

 

Water is getting into the exhaust somehow.

My guess, with my limited experience, would be a head gasket. You could have popped the seal around one of the water jackets, but there again, it's just an assumption.

Bump for an awnser from someone that knows though.

 

An intake manifold can sometimes be the cause of this.. It also produces the same visual diffects..

Just my .02

Hopefully this helps
-Cody

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CodyC142 &raquo;</TD></TR><TR><TD CLASS="quote">An intake manifold can sometimes be the cause of this.. </TD></TR></TABLE>

Never heard of that. Would like to hear more though.

 

y 20-50 oil?

 

Because it was probably already burning oil.