blows smoke in high RPM??

Joey's mx · Post by **Joey's mx** » October 5th, 2005, 7:10 pm

what would be wrong if my engine is blowing smoke when it is in the high RPM's only?? Can it be the timing?? Valve seals are new!!

Carmaster2005 · Post by **Carmaster2005** » October 5th, 2005, 8:48 pm

I would have suspested the valve seals first, but if they are new I would suspect the piston rings are worn if it only dose that when the engines cold. My mx dose the same thing untill it warms up, then i have no problem. The last car i had, had the same prob untill i replaced the seals. after that it ran great. then again it had all new pistons, rings,crank, block and the old head which i rebuild. Maybe try a compression test ? and squirt a little oil in the cylinder and see if your readings go up alot. Good luck.

Shades · Post by **Shades** » October 6th, 2005, 1:14 am

Just because the seals are new doesn't mean it can't be them. What if they were installed incorrectly, or they are the wrong seal, or they aren't properly seated on the guide.

If it isn't those then it is your rings, and if you're taking the head off maybe just get them to check your seals.

Did this smoking only happen after the seals were changed?