2006-06-27 04:42:40 · 12 answers · asked by bigman 1 in Cars & Transportation ➔ Maintenance & Repairs
sounds like valve guides.
2006-06-27 04:49:55 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Sounds like bad Valve guide seals. When the guide gets worn it leaks a little oil down into the cylinder when the engine sits a while...then when you start it up it throws a puff of smoke while burning off the oil. GM crate motors should be covered with a 3 year/50,000 mile warranty. Have it fixed under the factory warranty.
2006-06-27 04:58:10 · answer #2 · answered by FreedomLover 5 · 0⤊ 0⤋
If the smoke is white, it is antifreeze getting into the cylinders, which suggests a broken or leaking head gasket.
If the smoke is blue, it is burning oil, ---which suggests either leaking valve guide seals or worn piston rings.
If the valve guide seals are leaking, the oil burning will ONLY be apparent for a few minutes and very heavy just a few moments after start-up.
If the piston rings are damaged or worn, the motor will always expel blue smoke when the engine is running.
2006-06-27 04:51:09 · answer #3 · answered by fiddlesticks9 5 · 0⤊ 0⤋
Whoever installed it didn't do a clean job. Your going to have to take it to a mechanic who knows what he's doing and have him troubleshoot it. It could be an issue in the fuel delivery or a mispositioned gasket inside the motor.
2006-06-27 04:49:44 · answer #4 · answered by jesse_horner 2 · 0⤊ 0⤋
if it is a new motor and the engine mostly smokes when it starts up, then it is the rings on your pistions. it was probably not broke in properly. i would say u or someone ran it hard when it was first put in. Gas engines need to be babied when installed. Diesel engines need to be worked when installed
2006-06-27 04:57:42 · answer #5 · answered by wombat 1 · 0⤊ 0⤋
Could be a bad head Gasket, bad Piston Rings, Bad valve guides, or Rich air-Fuel Mixture, or it could be worse
2006-06-27 05:01:31 · answer #6 · answered by Clayton B 3 · 0⤊ 0⤋
need to re post and tell what color of smoke. blue/black...bad rings. white, water where it shouldn't be. also, i think maybe you're getting too much oil from the PVC valve into your carb. if you have one.
2006-06-27 04:48:09 · answer #7 · answered by Ryan 4 · 0⤊ 0⤋
gm is bad for valve guide rings as well as they are known as "O" Rings.
2006-06-27 09:29:52 · answer #8 · answered by Munch 4 · 0⤊ 0⤋
Blown head gasket. Smell your oil and see if it smells like antifreeze.
2006-06-27 04:47:01 · answer #9 · answered by noclass05 2 · 0⤊ 0⤋
valve guide seals
2006-06-27 04:53:07 · answer #10 · answered by THOMAS 2 · 0⤊ 0⤋