Hey everyone,

Question..

Ok, to adjust the compressor housing on a turbo you have to loosen up some of the bolts that hold the compressor housing in place... Well, I've loosened them up, and have re-adjusted the housing so it's at the proper angle for my charge pipe setup...

One problem, and I need some serious input... Obviously there is a certain torque spec that each bolt in the turbo needs to be torqued to.. But what are the torque specs of each bolt in a turbocharger?? Can I find a torque spec sheet for my turbo somewhere??

There was also one other bolt I had to loosen up on the turbine housing side.. No clue what to torque this bolt to either..

I'm concerned because for one.. Wouldn't having improper torque to any of the bolts in the turbo either miss align or throw the compressor impeller, turbine wheel, and/ or bearings within the turbo out of balance and cause pre-mature wear to the turbo..?

I have a Garrett T3 Super 60 turbo.. .48 trim turbine side, .60 (Super 60) trim on the compressor side....

I'd really appreciate any input, suggestions, torque specs, or advice....

It sounds like your talking about the 6 bolts that hold the housing agenst the backplate. While I'm sure there is an "offical torque spec" somewhere out there for them I don't think it's that critical. There should be a gasket in there between the backplate and the housing, and that's what maintains the propper distance. Just torque them down finger tight then go between 90 and 270 degrees on them. You don't want them to loose that they vibrate loose, but the housing is aluminum so you don't want to strip that either. About the same ammount of torque on them as you would put on sparkplugs when putting them in should do it.


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i did mine tight as i could get them with a wrench..i didnt use a torque wrench also and mine works fine..only one you should be concerned about would be the nut that holds the compressor wheel on the shaft...even that im not sure if you need to torque it down....i heard a 1/4 turn after its tight should be fine.

Cool, that's what I wanted to hear.

Thanks!

there are standard torque specs out there as per bolt size and grade.

If you found that, you'd have a better idea.

However, it is an aluminum housing, so don't over tigthen them and strip them.

Heli-coils are a bitch