I just had my car tuned in Texas after getting all the necessary mods done. Had the car tuned to about 13 - 14 PSI and it was making roughly 300 hp. Car ran fine, pulled like an ox and drove like a dream - no issues, no leaks aside from small vacuum leaks which I fixed.

The problem occurred somewhere in the 1,100 miles that I drove from Austin Texas to Boulder Colorado. The elevation change went from sea level to about 4,000 feet of altitude.

Here is my problem...

I noticed a small oil puddle coming from the very front of the car on the passenger side... weird, I did not remember seeing this. I popped the hood to see that the front end of my engine bay on the drivers side was all coated with a film of oil. At this point, I realized that the oil was being sprayed from my blow off valve (( I have an aftermarket BOV mounted in the cold side of my FMIC ( on top of that I have the CRV and BOV capped off and eliminated))

So the blow off valve is spraying oil all over the place --- at idle I see no blue smoke coming from the exhaust. I can see oil seeping out from underneath the couplers on my intercooler piping.



I am assuming that my turbos have gone but my question is... what factors could have caused this? They had no issues in Texas but when I get to colorado they are screwed up.

 

I've never used one but it's my understanding that an oil catch can will cure this issue.

Can anyone else confirm?

 

https://www.rx7club.com/3rd-generation-specific-1993-2002-16/my-car-dying-again-778848/

same here bruv, was so fine exactly few days ago and suddenly...i dont get it, went to a specialist this morning, gotta get a new set of twins

 

New thing... I haven't done a compression test yet so I am not sure but on top of oil literally dripping from my blow off valve, what would cause my vacuum to be at 12 when it is generally at 18.

Is it possible that my turbos are fine and my engine is the culprit for all the oil that is in my Intercooler piping?

I am just stumped as to what the hell is going on --- in Texas I was fine and as soon as I get into Colorado all hell breaks loose with my car. My BOV is located on the piping that connects to the Greddy Elbow, how is so much oil being discharged from this location? I am talking pretty significant amounts of oil, not just an oily residue.

 

Bad twins will spray a pretty impressive pattern from a BOV if it's coming through the intake side, though I haven't seen many fail this way. Have you checked your plugs/etc to see how bad they are?

 

How is your boost? That will tell you if your turbos are gone.

 

mate, just get it compression tested if is ok, take ur intake off and look in the turbos (bottom one will be the easiest) check them inside if there is oil try to get a new set..

 

If your turbos are blowing excess ammounts of oil into your engine, it can cause sealing issues, thus lowering compression. Disconnect your IC pipes (be prepared for a lot of oil to spill out), deflood then do a compression test.
A catch can will relieve the symptom, but not the cause. Even if he adds a catch can, whatever is filling his intake with oil will keep leaking, he just won't have as much of it spraying out anymore.

Like sickboy said, it's probably (usually) the turbos...

 

How do I deflood the IC? Just remove it and let it drain out one of the inlets? I am hoping my engine is fine and it is just the turbos, I was planning on going single sometime soon anyways so this is a minor inconvenience --- the engine I hope to get at least another 20 - 30k out of it.

I'll get it all off this afternoon and see whats going on.

 

Turbo oil seals are blown, be ready for a Turbo city overhaul or do it yourself, it is easy. Last time I bought them ( 4 yrs ago ) the kits were $150 each X 2.


Later

 

lol I meant deflood the engine, to push any excess oil out of there.

 

Haha my bad --- I will for sure do this. Going to go ahead and do that today as well as do a compression test to make sure the engine is okay.

 

Could you by any chance provide a link for this overhaul kit your speaking of? I am having a hard time navigating their website.

 

Update, removed all the IC + Intake Piping

-No oil in the intakes from primary or secondary

-All the piping connected to the intercooler is saturated with oil. The section between the intercooler and the throttle body had about 3 ounces of oil pooled up.

-Is this a definitive sign that the turbo seals have gone? Is there any condition related to the engine that could cause this much oil to be collecting in my intercooler piping?

-I have to go back to the garage and do my compression test real quick

---- I feel like my crankcase pressure is over pressuring... Is this a possibility?

 

I think that your turbos are gone indeed.

FD's turbo usually spray a very little amount of oil in the intake but when it comes to a lot like you explain, it's almost certain that your turbos sealings are down for good.

Good luck.

 

They do not advertise their kits on their website - call them up and tell them you have a 1993 mazda rx7 and you want to overhaul the twin turbos - they'll know what to do.


Later

 

I am confused though --- I thought if the turbos are failing that you see signs of it by oil being deposited in the intake piping. My intake piping is bone dry, it is only in the IC piping (anything from Y pipe to the throttle body)

I did a compression test on the engine and I have 115 front 113 rear...

If the plugs are fouled would this cause a problem with the low vacuum of 12 versus the usual 18?

All 4 plugs looked pretty fouled up, leading more so than trailing --- I think this may be a contributing factor to why my idle AFR's are reading so rich???

 

I just called that company and unfortunately they no longer carry that overhaul kit. Any other recommendations?

 

I am still stumped as to why my oil pressure is reading so high. I am seeing 100+ psi on my after market oil pressure gauge and I was under the impression that anything past 60 psi will cause oil to bypass the seals.

I have the nipple on the oil filler neck vented into a make shift catch can for now --- what could be causing my oil pressure to be so damn high?