View Full Version : Smokin ???
dirtdigger71
12-30-2008, 12:04 AM
my 400ex engine is smoking after a cold start for about 30 seconds then it clears out. is it valve seals or rings? thanks!
Quadforce
12-30-2008, 12:05 AM
sounds like valve seals.. either way head has to come off to fix it
ae13291
12-30-2008, 01:07 AM
just let all the seals expand after its been warmed up well
400exstud
12-30-2008, 06:26 PM
Condensation and moisture in the motor. All engines do it upon cold starts. Watch trucks in real cold weather. No real issues.
Have a nice day.
dirtdigger71
12-31-2008, 01:00 AM
It is oil burning but it is brief & not at every start up.
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