have any of you guys rebuilt your own turbos? - IDI Engine - VWDiesel.net The IDI, TDI, and mTDI source.

have any of you guys rebuilt your own turbos? by riceatingrabbit on 10 Sep, 2009 15:55
I've been slowly collecting parts to make my NA a turbo..

I have all the stock stuff and a T3, its got some shaft play (about 1/32" side to side) and I think it needs to be rebuilt before I run it..

I priced out a few shops that do rebuilds and its a little out of my budget, I am a diy guy, so i think i can do it myself, but I have a few questions to people who have done it:

where should I get a kit?
would something like this suit me?
http://cgi.ebay.com/ebaymotors/TURBOCHARGER-TURBO-REBUILD-REBUILT-KIT-T3-T4-T04B-T04E_W0QQcmdZViewItemQQ_trksidZp3286Q2ec0Q2em14QQhashZitem4148ce71f5QQitemZ280394363381QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories

How would you rate the difficulty? its just a few seals and some press work right?

Did any of you guys find a good write up on rebuilding our turbos?

please share any experiences...

Thanks..
#1 by rallydiesel on 10 Sep, 2009 16:37
It's not that hard, but there's always the rusted/snapped studs that can makes things way more complicated. Other than that, there is the issue of balancing that you can't DIY.
#2 by riceatingrabbit on 10 Sep, 2009 16:51
yes, I know about the balancing...

Theres a local shop that will do it for $75..
#3 by Luckypabst on 10 Sep, 2009 17:33
I think I paid about that much to have Turbo City in Orange County balance mine and tumble the aluminum parts and ship it back to me.

Otherwise, if I did it again I'd only buy OEM parts, not blister packed Chinese parts.

Chris
#4 by Rabbit TD on 10 Sep, 2009 17:39
Quote from: riceatingrabbit on 10 Sep, 2009 16:51
yes, I know about the balancing...

Theres a local shop that will do it for $75..

I've never rebuilt one but had one apart about halfway though. I still don't understand why they need rebalanced if you make a blade to housing scribe mark on each end before you take them apart and line them up before the shaft nut is torqued unless a new turbine or compressor wheel is used in the rebuild. As long as the marks line up how can it be off?
#5 by Rabbit on Roids on 11 Sep, 2009 09:34
if you are using the same shaft/compressor wheel/turbine wheel, then sure, make your marks, take it apart, rebuild it, clock the marks in the same place and tighten everything back down. if you didnt change any hard parts, then you should still be in balance.
#6 by clyde on 30 Oct, 2009 06:26
Yes, Dieselicious sells rebuild kits with good instructions. Care required, but not difficult.
#7 by GEE-BEE on 30 Oct, 2009 08:07
You can get TI nut's and bolts from Mettec.com

Econel is the best if you can find that type of hardware for Temp.

Iam a aircraft guy so I know...

Gee-Bee
#8 by MouseGTD on 30 Oct, 2009 13:21
Quote from: Rabbit on Roids on 11 Sep, 2009 09:34
if you are using the same shaft/compressor wheel/turbine wheel, then sure, make your marks, take it apart, rebuild it, clock the marks in the same place and tighten everything back down. if you didnt change any hard parts, then you should still be in balance.

is this still true if i have to change the bearing's as well?

i have a turbo that needs rebuilding, it has no play in the shaft but the it spins pretty freely then goes stiff, there's no damage to the housing or fan blades, does it sound like shafted bearings?
#9 by Rabbit on Roids on 01 Nov, 2009 06:47
you want to make sure the compressor wheel and turbine are clocked the same. make 2 marks on the wheels that both point up at the same spot. then you will have reference marks. if you take the compressor off (witch i dunno how you will change bearings without taking the turbine and compressor out) you need to make sure theat they are clocked the same when you put the new bearings and seals in. otherwise you will need to get it re balanced. ask me how i know this...