MSTHTD1

iTrader: (16)

If it weren't for bad luck I wouldn't have any at all. Last night I steam cleaned my motor with a gallon of distilled water before I removed my OMP. Man it kicked my ***, but got it done (Banzai BOP). Gave the car a fresh oil change, 5w30 Mobile 1 synthetic, bottle of ZDDP Plus, & a Dimple magnetic oil plug. So after letting the car sit for 24hrs to let the gasket maker cure i cranked her up , waited till she was warmed up No leaks found, op-test sat right, HELL NO! i drove 3 blocks to the gas station (only took it up to 4K RPM & 5 PSI boost). Filled up (93 octane premixed with 10 ounces of idemitsu), checked for leaks again then started to head home same rpm & boost. I look in my rear view & saw a smoke screen (I thought it was from the steam clean i did before the omp removal & oil change) But as I pulled in my garage I could smell burning oil . So i shut it down pop the hood and there's smoke near the turbos/down pipe area. I checked the BOP from the OMP removal & it was clean . looked under the car and found this.




Turbos gone? seems to be coming from the Manifold?

So in disgust I walk away to gather my thoughts, look down at the floor where i was parked to see if I can find signs of a leak. No oil leak Just brake fluid so after a quick look over i found this.




So your probably saying that sucks well my car wasn't done pissing just yet. I found residual power steering fluid under the inner tie rod on boot from the rack.

Soooooooo after popping two Motrin's I decided to reach out to the community for things to check or advice. Is it time to go single? ABS pump shot? I'm not sure about the rack but I now might consider going manual rack.

Help, advice, beer would be greatly appreciated.

Idel

MSTHTD1

iTrader: (16)

Can the gasket on the second pic be replaced? Is that the gasket between the twins & manifold?

Sarusanj

iTrader: (9)

So a synopsis... turbos leaking oil, ABS pump leaking brake fluid, power steering pump leaking? Pull the PS, go single, replace or remove ABS. Or, find a good set of used twins(or upgraded twins if you don't want to do all the work of gong single), used ABS, and used PS pump and be out a few hundred bucks.

Aeka GSR

iTrader: (4)

I think you just need to look at the omp removal more closely, after all it was the last thing you did. The brakes are a different problem obviously.

MSTHTD1

iTrader: (16)

^
I rechecked the BOP & it seems to be good no residual oil any where near the front cover.
Question why in the 94 & 95 models they removed the PCV valve? I removed the PCV capped the UIM & removed the vacuum lines from the primary turbo. I think the crankcase wasn't ventilated properly (catch can isn't ventilated) causing the turbos to blow a seal? This was the only thing I can think of. I restarted the car & i can see oil seeping from the metal gasket on the turbo second pic near the turbo actuator, with heavy smoke from the exhaust. Could that gasket be the culprit? Can I replace it or would I most likely have to rebuild them?

@sarusanj believe me I was thinking the same thing but i accepted orders to Japan in March & was thinking bigger like a 20B swap instead of dumping money on a single. I would like to fix the twins if possible or just buy a used set so I can transport the car to a Bat cave, for two years of hibernation.

DaleClark

iTrader: (55)

If you don't have the crankcase ventilated right you will shove a lot of oil into the combustion chamber, but it shouldn't blow a seal on the turbos.

The right way to do the 95+ PCV mod is to cap the nipple on the oil neck that points to the side and the nipple on the upper intake manifold that connects to it. You then retain the downward-pointing nipple that goes to the primary turbo inlet duct. If you run a catch can, it has to be a vented can with a breather on top. The non-vented cans are designed to be run with a hose from the oil nipple to the can, then a hose going from the can to the turbo inlet.

Triple-check that before getting excited about the turbos. If you can absolutely say it's the turbos, get a good used set for $200-300 and be on the road.

ABS pump leaks are pretty rare, I'd just get a good used ABS pump, swap that in, and be done with it.

PS rack I'd do some more testing to find the leak. I've never heard of a PS rack leaking, I'd make sure that was PS fluid and it was actually coming from the rack. I'd tackle the other problems first up.

Dale

MSTHTD1

iTrader: (16)

Thanks dale will do.

Idel

MSTHTD1

iTrader: (16)

Found the leak anybody seen the twins leak from here?

bajaman

Are you SURE that is the leak point? 'Cause that don't make sense.....

blue87

iTrader: (2)

yeah looks like the oil is coming from somewhere higher and collecting on that spot... doesn't look like the source from the pic at least. try cleaninf it all off with brake clean or something to see if fresh oil shows up might be easier to see where it is coming from...

MSTHTD1

iTrader: (16)

yeah I'm 99% sure it was leaking there i have the car on jack stands. I went under wiped everything off, started it up & saw oil bubbling from the circled area. I can probably record it & post it on you tube?

MSTHTD1

iTrader: (16)

Here's the link to you tube. I cleaned up the suspected areas again I found it to be leaking in the same area and near the metal gaskets, to the left of the turbo actuator.

blue87

iTrader: (2)

Is there any way a bunch of oil cold have been dumped into somewhere it shouldn't be (intake, exhaust, etc..) when you had it all apart for the omp delete? coild be just a bunch of oil in the exhaust/turbo area. the video looks like bubbles from exhaust gas not really much extra oil coming out? Could be like you and others said that the turbo seal is bad, but seems strange that it would happen at the same time as everything else like that...

I wonder if somehow your oil control rings are letting the oil out into your exhaust, could the water steam cleaning have knocked something loose or some carbon allowed the oil control ring to get stuck down in its groove or soemthing?

would be interesting to see when you pull the turbos off if the oil is coming out of the exhaust ports or if it is coming from the turbo?

Good luck, if it is a seal hopefully it is the turbo, much easier/cheaper to fix than the engine...

MSTHTD1

iTrader: (16)

Ok so when I tear it down I'm looking for (A) oil in the exhaust ports, & (B) bad seals on the twins? But would a visual confirm one or the other. In other words how do I verify the twins are shot? Because the only way to verify the oil control rings are bad would be to pull the motor : ( no?

Thanks again,
Idel

blue87

iTrader: (2)

Check out this thread by muibubbles has some info on leaking oil control rings vs turbo leaking...

https://www.rx7club.com/3rd-generation-specific-1993-2002-16/help-diagnose-car-starts-but-dies-misfires-blue-smoke-fml-914399/page2/

MSTHTD1

iTrader: (16)

So I pulled the intake manifold, exhaust manifold & plugs I found no signs of oil. But the turbos on the other hand had a lot of oil in the secondary turbo.

here are the pics:

blue87

iTrader: (2)

Well I guess that is kinda good news... much better to have the stock turbo go than the engine ... your rotors look like they have a nice crusty coating of carbon tough... looks like my second gen did when I tore it down...

MSTHTD1

iTrader: (16)

Yeah I noticed the carbon on there & this motor only has 6k miles on it. So like Howard would say time to get AI! As for the turbo I briefly considered going single but since I'm going to japan for the next 3 yrs I don't know if I wanna drop 4k on a turbo just to have the car sit for 3 yrs. I Really appreciate the help, this forum is definatly more helpful than the FSM. It's time to open up a bottle of Crown & celebrate the turbos dying & not the motor!

blue87

iTrader: (2)

I hear you on the AI, I am afraid of what my rotors look like,I have one turbo starting to smoke a little myself and I am thinking of fabbing up a single set-up this winter and will most likely go with AI at the same time...