oil burning
#1
Newbie
Thread Starter
Join Date: Jun 2003
Location: Atl GA
Posts: 1
Likes: 0
Received 0 Likes
on
0 Posts
oil burning
i have a 1986 N/A rx7. some times it smokes alot but others it doesn't smoke at all until 4,000 rpms then smokes when i shift. Is this an internal seal or could it possibly be the oil metering pump? Please help me, how do i fix it?
#2
Open up! Search Warrant!
Join Date: May 2002
Location: Kicking down doors in a neighborhood near you
Posts: 3,838
Likes: 0
Received 2 Likes
on
2 Posts
If its blue smoke, its oil getting past the oil control rings on the rotors. This would be the same as oil getting past the piston rings on a piston engine. It would require a tear down to get inside the motor to replace the oil rings.
If its white smoke, its coolant getting past the coolant seals which are sandwiched between each housing. Again, can't get to it from out side the motor.
Black smoke is when you burn lots of gas, which would mean you are running rich and need a tune up/ troubleshoot air and fuel systems and possibly emission control system. Burning coolant will mess up the internal parts of your motor. Coolant will cause rust on the steel apex seals and machined surfaces of the engine, and is also corrosive. Burning oil will leave lots of carbon in the motor, but isn't really detrimental to immediate functionality. Eventually will need rebuild to correct problem, as the leak will gradually become worse.
If its white smoke, its coolant getting past the coolant seals which are sandwiched between each housing. Again, can't get to it from out side the motor.
Black smoke is when you burn lots of gas, which would mean you are running rich and need a tune up/ troubleshoot air and fuel systems and possibly emission control system. Burning coolant will mess up the internal parts of your motor. Coolant will cause rust on the steel apex seals and machined surfaces of the engine, and is also corrosive. Burning oil will leave lots of carbon in the motor, but isn't really detrimental to immediate functionality. Eventually will need rebuild to correct problem, as the leak will gradually become worse.
Thread
Thread Starter
Forum
Replies
Last Post
troym55
3rd Generation Specific (1993-2002)
23
05-25-16 12:42 PM
tiger18
3rd Generation Specific (1993-2002)
9
09-03-15 08:27 PM