1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Smoke Problem

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Old Jul 23, 2003 | 11:36 PM
  #1  
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From: Burnsville, MN
Smoke Problem

When I get to high RPM's like around 6000. When I shift. there is a lot of blue smoke that comes. Obviously oil. But where could that much extra oil burning. But can I do to stop this or slow it down. All help will be greatly appreciated!
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Old Jul 23, 2003 | 11:48 PM
  #2  
AdrenalifeRX7's Avatar
Are you gonna shift?!
Tenured Member 15 Years
 
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From: Rochester, NY
Sounds like your oil rings on the inside of your rotors are going out. It should last a while even while doing this, but it's a sign that rebuild time is coming. There isn't really a way to stop this without changing those seals, and to do that you have to tear the motor apart. I would say use a little MMO in with the oil and try and prolong the life of the seals. Many rotaries smoke after a certain RPM. I get a little smoke after 9,000, especially when downshifting.
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Old Jul 30, 2003 | 11:03 PM
  #3  
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From: Burnsville, MN
Well, it mostly smokes when it has sat for a period of time. Otherwise its fine, I figure as long as shift before 4. I think I will be fine.
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Old Jul 31, 2003 | 03:30 AM
  #4  
REVHED's Avatar
Hunting Skylines
Tenured Member: 20 Years
 
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From: Brisbane, Queensland, Australia.
Yep, oil control o-rings are getting worn. When you let off the gas the sudden vacuum allows the oil to be drawn past the o-rings into the combustion chamber.
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