I was driving on the highway and when I took an exit I notice smoke coming out of my bonnet, so I pulled over and had a look and theres smoke coming out of the breather, lots of it. When I took it home and open up the oil filler cap and heaps of smoke came out, only thing is theres no smoke coming out of the exhaust. I did a compression test and i've got 150psi +/- in cyl 1,2,4 but only 70psi in cyl 3. Does this mean the piston/rings in cyl is stuffed or could the valves not be sealing? Is there a way to tell without pulling off the head. Sorry about the long post and thanks in advance.
Mai
Please help with engine diagnostic
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Cookiemonster
- Mother Goose
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- Location: Sydney
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davidbek95
- I've been here before
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- Location: beautiful QLD (mackay)
REPLY
TAKE IT BACK TO BLOKE WHO BUILT THE MOTOR AS THIS IS ONLY A FRESH MOTOR,THIS DOESN'T SOUND TO GOOD.
REGARDS DAVID
REGARDS DAVID
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Cookiemonster
- Mother Goose
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- Location: Sydney
Could be a bad valve guide.
Do the compression test again but this time put of bit oil into number 3 cylinder via the spark plug hole. If the pressure comes up then that indicates bad rings. If the pressure remains the same then its valve guides or headgasket.
*Edit: if this is a new engine then I would be taking it straight back to the builder and get him to diagnose and fix it.
Do the compression test again but this time put of bit oil into number 3 cylinder via the spark plug hole. If the pressure comes up then that indicates bad rings. If the pressure remains the same then its valve guides or headgasket.
*Edit: if this is a new engine then I would be taking it straight back to the builder and get him to diagnose and fix it.
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