Exhaust smoke with high oil consumption
#1
Exhaust smoke with high oil consumption
Hey,
I have been a lurker for a while. I am looking for suggestions on next steps for troubleshooting a problem. My setup started as a Bell kit with a 2860 turbo, braided lines, and separated gas down pipe. I added an FM intercooler kit with the silicone hoses. Right now running low boost 6PSI with the adjustable fuel pressure regulator. Megasquirt purchased but not yet installed.
So I get exhaust smoke, not enough for me to see in the mirrors while driving, but someone following me at a slow pace noticed it. Under boost I get enough smoke I can see it in the rear view mirror. Also letting the car run in the drive way, where the driveway slopes up and revving the motor puts a pretty good sized soot spot on the ground. The soot spot is pretty oily.
I pulled the oil return fitting out of the oil pan to verify there is no blockage and double check the hose routing for kinks. I pulled the intake hose from the turbo and it seems to be in good shape, no oil showing, no play, etc. The motor has about 30K on it, its a crate motor I got through the Mazdaspeed program, so completely stock. The PCV valve has a check valve between it and the intake.
Also, when I initially put the turbo on I was not running an oil restrictor, it was not in the Bell Kit which I bought used, but I have one on it now.
Any suggestions would be appreciated.
Todd
I have been a lurker for a while. I am looking for suggestions on next steps for troubleshooting a problem. My setup started as a Bell kit with a 2860 turbo, braided lines, and separated gas down pipe. I added an FM intercooler kit with the silicone hoses. Right now running low boost 6PSI with the adjustable fuel pressure regulator. Megasquirt purchased but not yet installed.
So I get exhaust smoke, not enough for me to see in the mirrors while driving, but someone following me at a slow pace noticed it. Under boost I get enough smoke I can see it in the rear view mirror. Also letting the car run in the drive way, where the driveway slopes up and revving the motor puts a pretty good sized soot spot on the ground. The soot spot is pretty oily.
I pulled the oil return fitting out of the oil pan to verify there is no blockage and double check the hose routing for kinks. I pulled the intake hose from the turbo and it seems to be in good shape, no oil showing, no play, etc. The motor has about 30K on it, its a crate motor I got through the Mazdaspeed program, so completely stock. The PCV valve has a check valve between it and the intake.
Also, when I initially put the turbo on I was not running an oil restrictor, it was not in the Bell Kit which I bought used, but I have one on it now.
Any suggestions would be appreciated.
Todd
#5
Mine smokes like a mothertrucker if im idling pointed up a steep incline sitting still. I did a leakdown, all good, the next step is removing the turbo to check for oil. It has no shaft play, but that doesnt mean anything. Idk what it might be. Does the smoke have a smell? My **** smells like burnt rubber. lol
#9
Well I ordered a leak down tester from Summit Racing but its been a busy week or so. Plus we bought a new Miata for the wife and that burned a couple of evenings. Hopefully, I'll get the leak down test done this week.
Another question though searching I see where parts suppliers say the ball bearing turbos and not rebuildable, you have to buy a new CHRA. Is this correct, if not any recommendation for getting a rebuild kit?
Thanks,
Todd
Another question though searching I see where parts suppliers say the ball bearing turbos and not rebuildable, you have to buy a new CHRA. Is this correct, if not any recommendation for getting a rebuild kit?
Thanks,
Todd
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