I just rescently pulled out my stock S4 turbo out
and porting the wastegate. Put it back in the car
using all the gaskets needed. Now it leaks
coolant and I pinpointed the leak to the coolant
inlet pipe on the turbo itself. Has anyone else
experienced this same problem. I checked all
intake gakets and turbo gaskets. Even changed
some twice. Should I double check something else
or do I have the diagnostic right?

 

If you said you pinpointed it to the coolant inlet pipe on the turbo... you just answered your own question. Work on that, it should be good.

 

Yes I guess I did. I must have
posted out of frutration hoping
for something I might have missed,
but I did'nt.
Thanks for looking
I am going to be sick now

 

If you have killed the coolant feed in the turbo's center section where it can't be repaired, you have two options. Buy a new turbo (or used). OR, just block the coolant feed from the block and the return to the water pump and just make sure to turbo time the car. The turbo doesn't require the coolant to run. It just makes it more reliable by helping take the heat off the bearings. The oil does the same. Just try not to turn her off hot and you should be ok while you save money for the replacement.

 

That's exactly what I am going to
do. I will block the coolant lines
while saving for a new one.
Thanks JDunkan

 

I apply a thin coat of RTV to all except exhaust gaskets.
That cuts way down on coolant, oil & vacuum leaks.

 

I figured I must have kinked the turbo
coolant pipe putting the turbo back
in the car. Quick question do most aftermarket
turbo's have a line for coolant. Have not
searched just wondering?

 

Alot of turbos are water cooled, especially OE turbos. There are lots of people that dont even use the water cooling on aftermarket turbos. There are also plenty of turbos that arent water cooled. Its not the end of the world that its not.

 

If you go the oil only route... set your turbo time up a bit higher..... also.... if you don't have a turbo timer... get one...

 

Thanks for your help guys. I will be getting a
turbo timer ASAP. Untill then I am going to
do it the old way, idle for 5 mins.
P.S. Im a old fart