rebuilding a turbo??
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Senior User
Joined: Oct 2007
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rebuilding a turbo??
can you rebuild a turbo your self??? if so were would I find the parts?
I was checking it out the other night and noticed that it ha alot of sideways play. I guess that this aint good. Could this be the cause of my oil useage?
I was checking it out the other night and noticed that it ha alot of sideways play. I guess that this aint good. Could this be the cause of my oil useage?
Lead Driver
Joined: Nov 2003
Posts: 6,900
Likes: 3
From: Campbell River, B.C.
Might be causing oil consumption, but sideways play is to a certain degree normal and expected even in a new turbo. As long as it doesn't reach the housing, its probably fine.
Play in and out (in line with the shaft) however is not good. There is some VERY small amount of play that can be measured with a dial caliper, but as far as your hand is concerned, no play in and out is acceptable.
My engine used to burn about 1L of oil every 200 miles, sometimes more if I ran it really hard. Most of that was from worn out valve stem seals. Its rebuilt now so thats gone.
Also the CDR valve (tuna can) can cause high oil consumption if its clogged or not serviced.
Play in and out (in line with the shaft) however is not good. There is some VERY small amount of play that can be measured with a dial caliper, but as far as your hand is concerned, no play in and out is acceptable.
My engine used to burn about 1L of oil every 200 miles, sometimes more if I ran it really hard. Most of that was from worn out valve stem seals. Its rebuilt now so thats gone.
Also the CDR valve (tuna can) can cause high oil consumption if its clogged or not serviced.
Posting Guru
Joined: Sep 2007
Posts: 2,207
Likes: 1
From: Las vegas
is the compressor housing oily? if so check the cdr if it isn't leting oil into the intake then the turbo is probly leaking oil.
I have to diagree with you David the turbo shouldn't have side to side play. Although International tells us to run them if it isn't hitting the housing and some side to side play is exceptable. And in and out play is exceptable to a degree. But as david said it shouldn't be able to be felt by hand it should be mesured with a dial indicator. Not sure if you can rebuild these turbos your self as most turbos have the impeller and turbine friction welded to the shaft but I am not familliar enough with these turbos.
I have to diagree with you David the turbo shouldn't have side to side play. Although International tells us to run them if it isn't hitting the housing and some side to side play is exceptable. And in and out play is exceptable to a degree. But as david said it shouldn't be able to be felt by hand it should be mesured with a dial indicator. Not sure if you can rebuild these turbos your self as most turbos have the impeller and turbine friction welded to the shaft but I am not familliar enough with these turbos.
Lead Driver
Joined: Nov 2003
Posts: 6,900
Likes: 3
From: Campbell River, B.C.
In the case of my turbo, and most other turbos I've seen, the aluminum compressor wheel is bolted onto the turboshaft. Then the turbine and shaft are one piece and are removed out the exhaust side.
From everything I've learned, play is normal on oil bearing turbos. Every turbo I ever saw had at least some play in the shaft from side to side. There is of course a limit to how much you want to see there. I've never worked on a ball bearing turbo, but those probably should have no play in any direction.
From everything I've learned, play is normal on oil bearing turbos. Every turbo I ever saw had at least some play in the shaft from side to side. There is of course a limit to how much you want to see there. I've never worked on a ball bearing turbo, but those probably should have no play in any direction.
Posting Guru
Joined: Jul 2004
Posts: 1,627
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From: West Valley Utah
Reality is that if you have a bit too much play in any direction, you'll know soon enough. Fins banging through the exhaust are a dead give away. Explosions in the turbo from oil pooling in the exhaust side are a good indicator of some oil seepage from the seals, along with the massive amounts of stinky blinding smoke trailing behind the vehicle.
Postmaster
Joined: Oct 2005
Posts: 3,724
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From: Clarksburg WV
These turbos are easy to rebuild yourself...of course, it seems easy to me because I've had several apart myself.
Any standard T3/T4 rebuild kit off ebay will work. Turbos are simple devices, they just require a lot of precision balancing to make sure everything works in harmony. If you do take yours apart MAKE SURE you mark the shaft and compressor wheel in relation to each other. If you get it back together the same way it came apart, all is good. You don't need any special tools except a couple picks to get the internal snaprings out.
Getting the turbo off the truck is probably the hardest part.
BTW, in and out play is not good EVER. That means your thrust bearing is on its way out.
I rebuilt the turbo on my truck (new bearings & new oil seals) and it's holding up great, 3000+ miles later.
Any standard T3/T4 rebuild kit off ebay will work. Turbos are simple devices, they just require a lot of precision balancing to make sure everything works in harmony. If you do take yours apart MAKE SURE you mark the shaft and compressor wheel in relation to each other. If you get it back together the same way it came apart, all is good. You don't need any special tools except a couple picks to get the internal snaprings out.
Getting the turbo off the truck is probably the hardest part.
BTW, in and out play is not good EVER. That means your thrust bearing is on its way out.
I rebuilt the turbo on my truck (new bearings & new oil seals) and it's holding up great, 3000+ miles later.
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Senior User
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I have to pull it off to fit my new ats housing and down pipe, I guess that I may as well rebuild it while I am at it! thanks for the help
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Postmaster
Joined: Oct 2005
Posts: 3,724
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From: Clarksburg WV
Yeah that's what I did.
Mine had a lot of play yet the truck had under 100K on it, which seems odd to me, I dunno.
Better to rebuild it while you have it off though.
Mine had a lot of play yet the truck had under 100K on it, which seems odd to me, I dunno.
Better to rebuild it while you have it off though.
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Thread Starter
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Senior User
Joined: Oct 2007
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thanks ordered one from these guy hopefully should be ok.....
Turbo Rebuild Kit Garrett T3 T4 T04B 360 degree Thrust - (eBay.ca item 220401748791 end time 23-May-09 10:04:02 EDT)
Turbo Rebuild Kit Garrett T3 T4 T04B 360 degree Thrust - (eBay.ca item 220401748791 end time 23-May-09 10:04:02 EDT)
