Turbo "seals"

[mja]

I know I forgot to shift, then heard what sounded like an electrical fire and that's when my little orange valve went. I hit 6.5k RPM. Also anyway you could explain what turbo surge is? Because that's what Jerry said the problem was with my car, now he's tuned it differently and is slowly adding more power again.

It sounds like you may have misfired, the cylinder may have seen too much pressure shooting excessive blowby through the piston rings. When that happens, the orange check valve should burst, although the diaphragm is meant to burst instead, sometimes it doesnt.

I understand the basics of turbo surge but not enough yet about this motor and turbo to answer that question. Maybe its time to order some turbo books

My best guesses are crankcase pressure exiting the *valve seals, or even the back of valves/something to mess up valvetrain function, or excessive pressure at the PCV intake inlet causing the wastegate solenoid to function differently. I think it has to be something along the lines of the first guess, a mechanically induced boost surge, since this type of thing a few people say is* not seen in tune or logging issues. Not sure how much control the tuners have over the wastegate solenoid to see differences in pressure from healthy vs blown pcv.

 

[SourKandi]

Turbo "seals"

On second thought, the turbo has coolant passages for it. I wonder if the 'disappearing coolant' issues are from similar problems. Hmm.

Tell me more! My coolant is constantly disappearing and the dealer tells me I'm basically crazy because it pressure tests. Where does it go!??

 

[$ub$onic]

Tell me more! My coolant is constantly disappearing and the dealer tells me I'm basically crazy because it pressure tests. Where does it go!??

Did you change the water pump yet

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[mja]

Subsonic - In your experience, does it seem like a new water pump helps with leakage? I had an issue with burning up coolant when my car was 30-40k miles. Ever since a new turbo/intake manifold/cam cover etc, it hasn't lost coolant.

 

[$ub$onic]

Subsonic - In your experience, does it seem like a new water pump helps with leakage? I had an issue with burning up coolant when my car was 30-40k miles. Ever since a new turbo/manifold/cam cover etc, it hasn't lost coolant.

It's normally a high one on the list for coolant that seems to vanish with no trace

I had to do one on my wife's 2015 shortly after I got it

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[2014 Blue RS]

Well, my PCV went. My daughter been driving it so haven't seen the car much until she called saying she was afraid to drive it because it was running really rough and smoking.
Bought the PCV mod but decided to replace with stock first as a trouble shooting step. Water pump area looks clean but plastic inlet connector for coolant reservoir looked like it was leaking. i have had some slow missing coolant. There's a fair amount of orange coolant goo underneath that piece. Then I noticed that one of my DDM hoses looked like it had been leaking. Not the hose itself but pushing past the clamp. Bought the replacement part but hoping these 2 easy fixes do the trick. Once running right I'll do the PCV mod.

Also, noticed the tube the connects on the underside of the turbo is wet with oil. Not sure what it's called but dealer says it's a common failure on these cars. Noticed a little oil on the floor after I pulled the car in.

 

[2014 Blue RS]

Seals, rings, who knows! All I know is got oil coming out of somewhere around the turbo. Seriously though. Good explanation

 

[vipertblck]

anybody offer rebuildling for these turbos?