smoke from exhaust
#1
Drift Happens
Thread Starter
smoke from exhaust
Hey guys,
i just bought a 1987 gtu.
its got a straight pipe on it and it smokes alot, its white smoke and i know thats oil. it only smokes when the rpms were up high and then winds down. im not sure why that is, my first guess was just excess oil burning but i want another opinion. anything will help thanks.
i just bought a 1987 gtu.
its got a straight pipe on it and it smokes alot, its white smoke and i know thats oil. it only smokes when the rpms were up high and then winds down. im not sure why that is, my first guess was just excess oil burning but i want another opinion. anything will help thanks.
#7
Lives on the Forum
Bad oil control rings = running at high rpms, then let off the gas, and you get a huge cloud of smoke out of the tail pipe. Sound about right?
Try replacing a quart of your oil with Lucas Heavy Duty Oil Stabilizer. I got a couple more years of use out of my last motor using the stuff. It works great.
Try replacing a quart of your oil with Lucas Heavy Duty Oil Stabilizer. I got a couple more years of use out of my last motor using the stuff. It works great.
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#10
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i got same thing is happing to me but it smokes a lot even when at low rpm's and i found oil out the tail pipe. the motor sat for two years maybe even more should i try some sea foam to clean the carbon out then put some Lucas oil in there?
#14
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Screw that man, nothing unreliable about the rotary engine.
If it is oil that is causing the smoke, then try the Lucas (replace one quart of oil, but can go up to two quarts of the Lucas). This can get you many more miles out of the motor that you've got right now, giving you a year or two to line up a rebuild or replacement.
If it is oil that is causing the smoke, then try the Lucas (replace one quart of oil, but can go up to two quarts of the Lucas). This can get you many more miles out of the motor that you've got right now, giving you a year or two to line up a rebuild or replacement.
#17
Drift Happens
Thread Starter
the problem is i dont have time to re build it my self or do anything because im in the military and cant leave base during the week. im willing to rebuild the engine i have cuz it still runs strong and pulls hard. anyway how much more horse power would a street port give me after the rebuild?
#19
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Hey guys,
i just bought a 1987 gtu.
its got a straight pipe on it and it smokes alot, its white smoke and i know thats oil. it only smokes when the rpms were up high and then winds down. im not sure why that is, my first guess was just excess oil burning but i want another opinion. anything will help thanks.
i just bought a 1987 gtu.
its got a straight pipe on it and it smokes alot, its white smoke and i know thats oil. it only smokes when the rpms were up high and then winds down. im not sure why that is, my first guess was just excess oil burning but i want another opinion. anything will help thanks.
Thanks Vick
#20
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If it's white smoke it's nothing to do with oil. White smoke is from coolant.
Like bungalobob said.
Blue=Oil
White=Coolant
Black=Gas
Compression test and a leakdown test.
Like bungalobob said.
Blue=Oil
White=Coolant
Black=Gas
Compression test and a leakdown test.
#22
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Check your coolant first if it's keeps getting low, there is your problem. Where it's going is a bit harder to find, the white smoke indicates it's going into the rotor housings. but if the car sat for two years you could have more than one problem.
#23
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If you are "burning" coolant (large clouds of white smoke from exhaust) then you can try this:
https://www.rx7club.com/1st-gen-archive-71/engine-coolant-seal-repair-maybe-750774/
https://www.rx7club.com/1st-gen-archive-71/engine-coolant-seal-repair-maybe-750774/