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5.7 Problem please help

brizzo

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I have a ls1 5.7 it's running but only just really rough and blowing blow smoke. Can any one tell me what's going on ? Please
 

VT-565

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Stop putting diesel in it.
 

soop

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Does it all of a sudden come good and drive okay?

Then just as randomly turn to **** again?
 

brizzo

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Hehe petrol only buddy. No can't drive it it's that bad
 

Darcon666

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Blue smoke = Oil burning :cry:

Which could mean anything from broken rings, head gasket, vavle stem seals, cracked head... anything that could let oil into the combustion chamber and get burnt, so blue smoke out the rear.
 

brizzo

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Blue smoke

Check the oil it's fine that's the first thing I did do. So how do I dignoise this problem ?
 

VT-565

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Did the engine just start behaving like this?
Or was there an event that kicked it all off
 

brizzo

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Problem

It's a crate motor it's been put it the car sat in the shed for about a year then after driving it for like a months it's done this ? So I can't see how it's a cracked head or any of that. Maybe a sticky valve ?
 
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