2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

smoke after rebuild

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Old Jul 31, 2006 | 08:13 AM
  #26  
Latin270's Avatar
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From: Allentown, PA - Paterson, NJ
Originally Posted by RotaryResurrection
I find it odd that people are always so quick to blame smoke on a bad motor. There are several other factors with these engines that can cause smoke.

An improperly vented PCV/oil system.

A hung open or bad OMP.

A bad turbo, which is quite common.

Most common of all, a rich condition as a result of too much fuel or other control system issues.

Improper porting, worn irons, or improper install of oil control rings can also cause smoke, but any of those would be pretty consistent at a given rpm.
Yea but he claims he reused the oil control o-rings. Those things get cracked and brittle so my guess is thats the logical culprit. Also the fact that his engine smokes for 30 mins. after start up eveytime is not a good thing. Most of all it was rebuilt by a guy who's ability are questionable. So the verdict? I'd say tear her down and build her back up using new seals.
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Old Jul 31, 2006 | 01:39 PM
  #27  
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From: portland,OR
Oh wow I am so sorry everyone. I totally didnt scroll to the other page when i was poasting sorry i was looking on the first page and was getting confused. ok ok so it starts and smokes a lil now after starting it but when i am at a stop light sometmes it will smoke everyone out but just for a lil. any wuestions?
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Old Jul 31, 2006 | 01:40 PM
  #28  
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From: portland,OR
hey i stoped the majority of the smoke. the main seel boly crush washer wasnt installed propperly.
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Old Jul 31, 2006 | 01:48 PM
  #29  
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From: Central Florida
Originally Posted by RotaryResurrection
I find it odd that people are always so quick to blame smoke on a bad motor. There are several other factors with these engines that can cause smoke.

An improperly vented PCV/oil system.

A hung open or bad OMP.

A bad turbo, which is quite common.

Most common of all, a rich condition as a result of too much fuel or other control system issues.

Improper porting, worn irons, or improper install of oil control rings can also cause smoke, but any of those would be pretty consistent at a given rpm.
apples and oranges, i'm sure if any rebuilder was there to see the smoke to confirm it we wouldn't have to speculate. it sounds to me though that this is not just a little smoke but a LOT since he is smoking people out.

1) PCV will smoke a bit but not like oil seals will
2) same as #1
3) this is an n/a
4) overfueling is generally black smoke and not very thick, it can be slightly bluish since it collects and burns extra oil but easily noticed because of the smell and eye burning and gets worse with RPMs since too much fuel and the car just wont idle.

oil seals can expand somewhat from cold to warm and may seal up slightly when fully warmed, this is exactly what it sounds like to me.
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Old Jul 31, 2006 | 08:31 PM
  #30  
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From: portland,OR
Yea That Is Basically What It Seems To Me. The Car Runs Pretty Well But It Sounds Like Really Tin Canish. I Dont Like The Sound And Was Wondering If A Leak In My Exhaust Headgasket Would Cause It?
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Old Oct 7, 2006 | 02:08 PM
  #31  
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From: Houston Tx
Originally Posted by 88t2romad
a rotary smoking on first startup is like a baby crying when it is first born, you want it to quit, but your glad its alive

THIS HAS TO BE THE BEST SAYING EVER
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