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Discussion Starter #1
Anybody see a step by step instruction on a GM Turbo rebuild? Mines in need of one. I'm also pretty sure I'll need new vanes, intake & exhaust, since the turbo wore out enough that both sides have contacted the housing. I've seen kits but no place to get other parts:(
 

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It's not too bad to do...
1. remove the 4 bolts holding the exhaust 90 remove that
2. remove the bolts holding the exhaust turbine housing (use a good penatrating oil on them or heat, they also can only come out so far and then you have to start seperating the housing for them to clear... I used a plastic dead blow hammer to tap it apart just make sure it doesn't **** on there or it will hit the exhaust turbine and leave marks on it.)
3. remove the intake half of the turbine housing (that ones easy)
4. Remove the intake turbine from the shaft. The threads are left hand threads and you can put a wrench on the exhaust side it is part of the shaft (exhaust side doesn't come off it's part of the shaft) The turbine will pull right off after the nut is off.
5. tap the shaft out the back with a rubber or soft faced mallet once it starts moving it goes easy.
6, now the fun part... there are a few screws holding the seal plate in. They are easy to reove just make sure you use the right sized torx bit and when you put the bit in tap it a few times pretty firmly to break the locktite so they will turn. After you get the screws out use a spanner wrench and turn the plate while pulling outward it will come off.
7. the next plate (thrust plate) is a little tougher. the screws holding that one in are very soft and strip out the torx part easy. make sure you have a good fit with your torx bit and once again tap on it firmly to break the locktite hold and be careful not to strip them out. once you get them out you just pull out the thrust plate and you are down to the journal bearings.
8. pull the intake side journal bearing out, then turn over to the exhaust side and remove the snap ring holding the journal in and remove that one.
9. Clean very well and reverse order to reasemble...
10. There is a sealing ring right in front of the exhaust turbine, and the two rings on the intake side.
Depending on what kit you buy some come with a little more parts than others. I've done quite a few of these now and once you get into it, it is pretty much self explainitory...
All threads are right handed except for the intake turbine nut.
On reassembly I always put a small drop of removable locktite on the threads of the thrust plate screws and the seal plate screws.
If you have any other questions or need help just ask I'll try my best to help.
Also if anyone in here has better ways (or corrections) to do any of the steps please speak up... I'm always looking for better ways to do anything...

P.S. I hope this is helpful.. I've been meaning to sit down someday and write up a full step by step but have been to busy to do it. When I did my first one nobody would help me at all not even the slightest (didn't belong here yet). So I just took my time and luckily didn't do to bad on my first one. I've heard of people since I did my first one that stripped out the intake side nut on the shaft and stripped the screws on the thrust plate.
Good luck and take your time and lay out the parts in order if you need and after this one you will be a pro at them...
 

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Please take pictures when you do this. They would be great to have in an archive.
 

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Discussion Starter #4
Thanks! I got down to the seal plate on my own and needed help for the rest:)

This will help with the rest. Like I mentioned rebuild kits are easy to find but what about other parts? Anybody have a line on those?
 
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i did mine when i just needed seale so the the kit was all i needed. $114. my cost for that.i did not find it that hard and i wish i would have had a camara.
 

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I have one apart right now I'll try to get out and take pictures of it and step by step it. Hopefully this weekend if work allows...
 

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Discussion Starter #7
Still looking for a turbo parts, specifically vanes, supplier!
 

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Discussion Starter #8
BTT. Tried Pinnensular - no go.
 

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a local turbo shop used a larger phillips self tapping wood screw, they threaded one into each side of the seal plate and then pried up on the screws and the plate came right out, if yours is really stuck try that trick
 
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