BOV covered in oil?

[JesusTheAgnostic]

Hi guys, I've been gone for a while, mostly. Anyway, I have a Forge BOV that is coated in oil, I'm assuming it's there because it gets blown out when the valve opens. I think this because every time I take off the pipe going to the throttle body there's usually oil sitting at the mouth of the throttle body. So my question is do you guys have any experience with something like this?

Thanks!

MODS:
BNR Tune
MPFAB IC
MPFAB Intake
TTR Mounts both of them
Ported Manifold
Bypassed bypass
No cats
E85 Flex Fuel Kit
some other stuff that I can't remember probably

 

[shibbs]

It's because the crankcase pressure gets vented into the inlet of the turbo. A catch can should greatly lessen the amount of oil that gets into the turbo. It will add an additional step of maintenance, however.

 

[JesusTheAgnostic]

It wouldn't have anything at all to do with a potentially damaged turbo?

 

[Blue Moon Sonic]

I have a question. Did you check for the orange intake manifold check valve? Cause that would be cause for concern. Oil normally doesn't make it's way to the TB unless there was something wrong with the PCV system. I'm going purely based off of experience with this one.

 

[skurtov]

There will be a small amount of oil buildup. It shouldn't be anything beyond the quantity of a thimble.

 

[JesusTheAgnostic]

I haven't bothered to check for the orange valve. Now now, I know it sounds stupid, but the last time that valve went it would blow smoke out of the exhaust, and I haven't seen any. I'll check later today though.

 

[JesusTheAgnostic]

There will be a small amount of oil buildup. It shouldn't be anything beyond the quantity of a thimble.

Due to the PCV? At the throttle body, I have maybe a little line sitting at it, like half a centimeter wide.

 

[JesusTheAgnostic]

Here are some pics

 

[JesusTheAgnostic]

As you guys can see, there appears to be oil all over the place, and carbon deposits too, though those are mostly by the manifold and the turbo than the BOV. The BOV does have some carbon deposits on it though.

 

[Tormach]

As you guys can see, there appears to be oil all over the place, and carbon deposits too, though those are mostly by the manifold and the turbo than the BOV. The BOV does have some carbon deposits on it though.

Have you taken your BOV out to see if it is filled with oil as well or coked up. That looks like (to me anyway) a lot of oil buildup where there shouldn't be.

What does the inside of turbo inlet look like and the discharge to the inter-cooler.

 

[Blue Moon Sonic]

I would honestly pull the whole turbo off and inspect everything. It's not a very difficult job pulling it and replacing. Just time consuming with a couple bolts that are an absolute PITA.

 

[JesusTheAgnostic]

Well the last time I. Removed the intake there was oil in the turbo inlet. If I. Remove any. Charge pipe there's oil in it. I haven't removed the BOV because it's a giant pain in the ass. I had to pay my little brother 5 dollars to help me with his tiny hands. I haven't pulled the turbo because I don't know how, and I daily the thing. I know there's something wrong though because Jerry says I'm getting around 10 lbs of boost instead of 20, and the max torque I log is 130 ft lbs. If you guys have instructions to pull out the turbo I have two days off this week

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[Tormach]

Ya, my recirc valve would have been a pita to install but I have alot of extensions and u-joints that made it easy.

I'm starting to lean towards a hurt turbo or def something related to it. Removing it is the only way to know. I haven't removed my turbo so I will leave that to blue and others to advise on.

I would def check your intake manifold for the orange check valve and the return pcv line to the turbo. If it's missing the Cruze fix is a possible option.

I can say after 3k+ miles to date sense my turbo and intake manifold where replaced I have had zero blow-by with my catch can setup. This includes 500 or so mile before the intake manifold was replaced. By no means is this a [emoji817] fix.

Anything you can do to determine and narrow down the problem is a plus before you start throwing money at it.

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[JesusTheAgnostic]

I checked for the orange valve earlier and it's good. It smelled like liquor when I popped off the hose though. And I may or may not have dropped a tiny little washer down the inlet once

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[Blue Moon Sonic]

I'll link some stuff from the csmans site, but that will only go so far for referencing. I'll try to remember anything I can from 3 years back when I had to do mine. But you'll need to buy the following.

Exhaust manifold Gasket
Oil feed and return lines
50/50 Dexcool, (good time to flush the cooling system)
Turbocharger (used works) Recommend LKQ for salvage yard
I would also give the car a fresh oil change as well

Turbo Removal:
Chevrolet Sonic Repair Manual: Turbocharger Removal - Forced Induction - Intake and Forced Induction - Engine - Powertrain

Turbo Install:
Chevrolet Sonic Repair Manual: Turbocharger Installation - Forced Induction - Intake and Forced Induction - Engine - Powertrain


I may be missing a couple things as a disclaimer.

 

[JesusTheAgnostic]

Did you use that weird looking wrench in the instructions when you did it?

 

[Tormach]

Did you use that weird looking wrench in the instructions when you did it?

I looked that weird wrench up and stupid thing costs $113.. [emoji43][emoji43]

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[JesusTheAgnostic]

You guys think maybe autozone lends it out?

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[JesusTheAgnostic]

Hey guys quick question. I have a GTX14 sitting in my room. Waiting for the tune, to install it. I removed the waste gate on my stock turbo and pulled the rod and it requires almost no force. Do you guys think it's a good idea to swap the wastegates in the mean time?

 

[Blue Moon Sonic]

Did you use that weird looking wrench in the instructions when you did it?

I looked that weird wrench up and stupid thing costs $113.. [emoji43][emoji43]

I actually didn't use any of the specialty tools. it was a royal pita for a couple of the fasteners, but I managed. I would get a set of those ratcheting box wrenches. They come in handy for stuff like this. Same with offset box wrenches.

Hey guys quick question. I have a GTX14 sitting in my room. Waiting for the tune, to install it. I removed the waste gate on my stock turbo and pulled the rod and it requires almost no force. Do you guys think it's a good idea to swap the wastegates in the mean time?

Seeing as you are going to be upgrading. Don't even touch the exhaust manifold if you don't have to. Compressor housing and the CHRA should be able be removed without touching the exhaust manifold. If I were you, I would go buy the BNR WGA before putting the GTX turbo on the car. I would also pull the BPV off the old turbo when it is out of the car and install it on the new turbo before it goes in. Chances are the WGA is officially shot and your turbo has officially failed.

One more thing. Pull the downpipe off and check the WGA port for any cracks in it. If there are, Go to the junkyard, buy a used low mileage turbo that doesn't have a crack by the WGP and put the GTX upgrade on the new exhaust manifold before installing it in the car.