Holset HX35 leaking oil from turbine?

[dylansword]

I just installed a holset hx35. Was rebuild less than 100 miles ago. Noticed oil leaking from under the car. Traced it from the exhaust side of the turbo. Pulled the downpipe off. Started the car, quite a bit of oil is coming out from the turbine. What would cause this, and how do I fix it? Thanks

 

[WillWorkFoBoost]

Wrong spot to post this, youre in the for sale section. but Id say that means that it was rebuilt wrong 100 miles ago.

 

[ssideways]

yea wrong spot budd

Wrong spot to post this, youre in the for sale section. but Id say that means that it was rebuilt wrong 100 miles ago.

actually this can also be from improper install, was it smoking at all from the get go? what size is your oil drain line (also your feed line)? over pressure in the center cartridge can cause this a lot of time.

 

[dylansword]

It doesn't smoke much at all. I've only driven it like 15 miles. Drain is -10, feed is -4

 

[hvyman]

Ya prolly need a restrictor for that turbo.

 

[dylansword]

Would putting a restrictor in possibly solve the problem? Or would I need restrictor and to fix something inside the turbo?

 

[dylansword]

I need some help with this. I just installed a newly rebuilt hy35 holset and it is leaking oil out of the exhaust housing. I need to know if a restriction in the return like would cause this, and is so, would just fixing the return line solve the problem, or woul I need to repair the turbo? If it is just a seal in the turbo that failed, would I need to replace just it, or would the while thing need rebuild? Any input would be great as I need to get the car drivable again.

 

[hvyman]

It's a restrictor on the feed not the drain.

Your getting excessive oil pressure and it doesn't have anywhere to go.

 

[dylansword]

I was saying, if I had a restriction, or block in the return line. And this is what was causing oil to come out the exhaust, would I just need to fix the restriction and all I well, or is there a seal blown in the turbo. If it is just simply getting too much oil, would putting a restrictor on the feed line fix the problem? Or would I need to do that and fix the turbo?

 

[mk3sons]

I was saying, if I had a restriction, or block in the return line. And this is what was causing oil to come out the exhaust, would I just need to fix the restriction and all I well, or is there a seal blown in the turbo. If it is just simply getting too much oil, would putting a restrictor on the feed line fix the problem? Or would I need to do that and fix the turbo?

Could go ether way. just add a restrictor it needs to be done anyway..

 

[dylansword]

Is there a specific size I need?

 

[hvyman]

depends on your oil pressure.

what size feed and drain are you currently running?

 

[dylansword]

-4 feed, -10 drain. Stock gauge usually reads below 40psi.

 

[dylansword]

I just put an oil restrictor in, and it is still leaking oil. Also when I shut the car off, I can hear a hissing of pressure coming out exhaust housing? Is the seal blown? Does the whole thing need rebuilt or can I just put a new seal in?

 

[Flateric]

When I ran my Turbonetics initially without the restrictor it leaked the same as you have and I unfortunately had damaged the seal by doing so and had to have the seals replaced due to the overpressured oil blowing them out.

Was a PITA but lesson learned.

 

[ssideways]

well if you break the center cartage down you will need to get it checked for balance....so yea for the most part

 

[MDCmotorsports]

Is your drain running up hill or kinked?

How is your pcv system routed?

What is the piston ring blow-by %?

Shaft play side to side?