7394
Lawn Addict
- Joined
- Sep 5, 2014
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Yep, sounds like valve guide. At idle the engine has the greatest amount of vacuum. This is when it is most likely to suck some oil down loose valve guide(s).
When you throttle UP, is this when you see the blue smoke most ? (as motoman posted)
A 'Leak Down test' would let you know if your valves are not seating properly, & if intake or exhaust, or the rings are the culprit.
But it's not gonna diagnose a worn guide.
When you throttle UP, is this when you see the blue smoke most ? (as motoman posted)
A 'Leak Down test' would let you know if your valves are not seating properly, & if intake or exhaust, or the rings are the culprit.
But it's not gonna diagnose a worn guide.