Question about 1989 Mitsubishi Sigma
When I start the engine,too much smoke comes out the pipe
Is it white,black or blue smoke?
If it's the org. engine it will has over 200,000 miles on it.
It's normal to has the valve stem seal/oil seal on the head to leak oil into the cyclinder.
The smoke you see is the motor oil drop from the seals. It land on the top of the cyclinders and it create black smoke at start up.
The inexpensive fix is to start using high mileage oil with seal conditioner.
This will help soften the rubber seals and help reduce internal oil leak.
The correct fix is to wait until it's time for a head gasket replacement and let the professional to service the head.
Complete head service is the only method to stop this internal oil drip problem.
I will monitor the oil and coolant level.
White smoke AFTER warm up is the first sign of blown headgasket.
Posted on Aug 24, 2009
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Posted on Jan 02, 2017
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