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-   -   WTF could it be??? Oil smoke (https://www.rx7club.com/3rd-generation-specific-1993-2002-16/wtf-could-oil-smoke-182857/)

Rotarded 05-03-03 05:34 PM

WTF could it be??? Oil smoke
 
OK, Here's the story:

I've had my FD since July with no boost or oil smoke problem. I had noted that the secondary turbo had a small amount of oil on the outside of the inlet housing.

In March I installed a PFC and mid-pipe and immediately began noticing & smelling oil smoke when I spooled the secondary at WOT. I had been running NO more than 12 PSI at any time. Shortly thereafter, my car would begin blowing oil-smoke after about 60 seconds at idle.

I purchased, and installed a reliably "known good", low mileage set of used stock twins removed to do a single conversion.

No smoke at idle anymore. BUT, 12 PSI at WOT and I'm STILL spewing oil-smoke. I just checked my PCV and it's operating correctly.

Any other suggestions? Besides the turbos? Besides "go single"?

Mike

Rotarded 05-04-03 10:08 AM

C'mon, someone's gotta have another idea?

turbojeff 05-04-03 10:38 AM

Oil seals in the motor going bad?

BoOsTin FD 05-04-03 10:49 AM

every time you go midpipe you will smell something. Gas fumes or other stuff. I don't know about oil though. It could be only two things, either turbos or oil seals. Since you changed turbo, there is your answer then.

Rotarded 05-05-03 08:34 AM

Did some tuning runs yesterday courtesy of Badog:

WOT pulls to 4200 RPM, no oil smoke/smell.

WOT pulls from 4500 to 7500 RPM, no oil smoke/smell

It seems I am getting the oil smoke only when I transition at WOT. No boost issues whatsoever.

redrotorR1 05-05-03 11:52 AM

That would hint at the turbos, IMO. The carbon seals in your 'new' turbos are probably okay for now .... but they're warning you. It won't be too long .... :(

TopSecretUSA 05-05-03 11:59 AM

My car smokes *blue/oil* when idling, but thats because I have my oil pump welded open so it keeps constant oil pressure for my t78. Other than that, it never smokes. If I was you, id run compression check and make sure everything is to spec. As long as your engine compression is fine and you dont mind adding oil I wouldnt worry about it.

Rotarded 05-05-03 01:12 PM

double post, Oops!

Rotarded 05-05-03 01:15 PM

Compression testing fine, vacuum of 15 @ 850 rpm idle.

I even ran a 13.6 at 106.6 MPH (@ 10 psi) last weekend, leaving a smoke trail all the way down the track. No shitty driver comments, first time ever at the track!

Maybe I should go non-sequential. No transition, no smoke?


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