Blue smoke out exhaust

Chat about your facelift 9n3 Polo - Including the 9N3 Polo GTI!
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Divercmb 123
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Posts: 3
Joined: Sat Apr 06, 2019 6:17 am
Drives: 1.2 55 plate
Location: Rugby

Blue smoke out exhaust

Post by Divercmb 123 »

How do I check if it's the pistons or valves at fault without taking the head off
Cheers Marcus
The car doesn't smoke that much when cold but when it's warm and deceleration then eccelarate a load comes out
gerinemo
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Posts: 47
Joined: Sun Apr 08, 2018 9:19 am
Drives: Polo 9n3
Location: Dublin

Re: Blue smoke out exhaust

Post by gerinemo »

Deceleration causes a vacum that sucks oil down the valve guides


If the car does not smoke on acceleration chances are the valve oil seals / guides are worn

Do you get a puff of smoke when you first start it in the morning
People used to say if it were the seals oil would seep past over night and a little would be burnt off when you first start it

this is of course just my opinion and could of course be wrong
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