My evolution is blowing constant grey an blue smoke what is tthe cause
Nov 22, 2017, 12:23 AM
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My evolution is blowing constant grey an blue smoke what is tthe cause
Just had bottom end rebuild less then 6000kz ago then all of a sudden it started blowing excessive amounts of grey an bluey smoke from exhaust am new to the evolution world so any advice or Help would muchly be appreciated . Have been told could be turbo seals.An another person reakons it piston rings or valve seals,rings.
Last edited by Cavalli88; Nov 22, 2017 at 01:34 AM. Reason: Better information on my problem with my evolution 3
Nov 22, 2017, 08:41 PM
#6
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It probably IS, but it'll be because last time it blew up it was due to a bad tune and it's still got a bad tune.
Imported evos are supposed to be run on 100 RON.
98 RON is OK but you're not going to make big power on 95 RON.
So the question would be.........what grade of fuel does it run on / tuned on.
So........waiting for a vid of the smoke.
BTW compression tests and leakdown tests don't find smoke.
Imported evos are supposed to be run on 100 RON.
98 RON is OK but you're not going to make big power on 95 RON.
So the question would be.........what grade of fuel does it run on / tuned on.
So........waiting for a vid of the smoke.
BTW compression tests and leakdown tests don't find smoke.
Nov 23, 2017, 10:22 AM
#7
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It may be rings,turbo seals.
Remove your upper intercooler pipe look for oil in pipes.
Check turbo for shaft play.
Do compression test then leak down if compression test comes back out of spec.
If compression comes back out of spec, perform wet cylinder compression test. If numbers rise the piston/rings are at fault.
If the compression stays the same with wet test then likely the pistons are not at fault and is a head/valve issue.
Also if the smoke is only on start ups, thats usually bad valve seals.
Remove your upper intercooler pipe look for oil in pipes.
Check turbo for shaft play.
Do compression test then leak down if compression test comes back out of spec.
If compression comes back out of spec, perform wet cylinder compression test. If numbers rise the piston/rings are at fault.
If the compression stays the same with wet test then likely the pistons are not at fault and is a head/valve issue.
Also if the smoke is only on start ups, thats usually bad valve seals.
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Nov 30, 2017, 10:49 AM
#9
From what I have learned, the metal turbo oil rings don't usually go bad, it's the CHRA itself that gets misshapen and starts to leak oil (assuming crank case pressure is in check).
Pull the spark plugs and see if oil is getting into the combustion chamber in the first place.
Your sources for burning oil are the following:
-Through the valve stem seals
-Through the valve guides
-Cracked Cylinder head
-Bent camshafts causing damage to the valve stem seals and valve guides
-Piston compression rings, Oil rings or oil rail support not clocked properly during install.
-Too much crank case pressure forcing oil back up the return line of the turbo causing it to burn.
-Cracked pistons
Good luck with your search. A compression and leak down test will only help you if the problem is severe, but try it anyway.
Pull the spark plugs and see if oil is getting into the combustion chamber in the first place.
Your sources for burning oil are the following:
-Through the valve stem seals
-Through the valve guides
-Cracked Cylinder head
-Bent camshafts causing damage to the valve stem seals and valve guides
-Piston compression rings, Oil rings or oil rail support not clocked properly during install.
-Too much crank case pressure forcing oil back up the return line of the turbo causing it to burn.
-Cracked pistons
Good luck with your search. A compression and leak down test will only help you if the problem is severe, but try it anyway.
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