before i use the turbo on the GSLSE project, i want to rebuild the stock S4 turbocharger ill be using. Doesnt seem like much information on this exists when i was rumaging through old posts. I am going to do it myself and send it to a balancer about 20 minutes away.

so does the dealership stock the parts to do this? i didnt see anything on sites like mazdatrix.

 

Good luck with that. I sent my s5 turbo off to BNR....

 

the stock turbo is a HT-12 correct?

 

http://www.turbocity.com/product_inf...roducts_id=169

im just starting my rebuild now, i sent mine out 3 times to get rebuilt, and it lasted like 3 weeks, this time im doing it myself to see whats going on, dont know how to post the link, i hope the above works, i got a turbo rebuild kit from turbo city, it was about $120 shipped to me, mine should be all done in a day or two, i will try to posy back and let ya know how it went

 

I was going to use their kit until I found this one:
http://cgi.ebay.com/ebaymotors/ws/eB...m=160078161933

Which is the same parts and uses a carbon seal set. I was also going to order the 360 thrust bearing from that same seller and have a local shop balance the rotating assembly.

As a side note, all of the rotating parts are individually balanced but the assembly can be further balanced to make the turbo less noisy and improve spool (not noticeably).

If you mark the parts upon disassembly and nothing needs to be replaced (other then seals/bearings) you shouldn't need to re-balance the assembly. I need to replace the exhaust turbine shaft assembly so I have to have it re-balanced.

 

cheap kit!!! i might ****** one up even though i doubt my turbo needs it, it couldnt hurt.
is the rebuild pretty straight-forward?

 

Reted posted a turbo rebuild document explaining how its done. It's thorough.

I reposted it on my site: http://www.cochran-racing.com/turborebuild.doc

 

Actually it was me who originally posted that, and I must've posted the link to it a dozen times since then, so it's strange that it wasn't found when "rummaging through old posts"...

 

Ah, I only found one where it was attached to a post by reted, not linked. Apologies.

 

finding 12 out of 8480345083745 posts on this forum is a hard ordeal!

i got lucky. bought a NEW bearing center for 20 bucks!

 

Like a whole new CHRA for 20 bucks!?! WOW! Where do I sign up?

 

behold the power of ebay. some turbo place had it and wanted to clear it out i guess. this should save me serious time and umm...money

 

Bastard, I was just on there looking for parts... I guess I didn't look hard enough.

Was it advertised as a HT-18 CHRA or generic t3 center?

 

Disregard that jazz about the ebay kit, I contacted the seller and the carbon seal is different then the one in that kit. Total with a 360 thrust bearing it's 96 dollars for the rebuild kit. (which is still a damn good price).

 

So how are you guys balancing the shaft assembly? These things spin upwards of 100,000rpm.

 

Local turbo shop. The parts themselves are individually balanced, it's not necessary to have it done, however it will improve the life of the turbo, and bearings and it'll be more quiet.

 

its was for the HT-12 (s4) turbo. Which is what im using.

 

I thought the HT-12 was the FD twin

 

Stock FC3S turbo is a Hitachi HT-18.
Geez, it's embossed right on the housing, people...


-Ted

 

Which turbo is the S5 turbo? I have some shaft play, which type of kit should i get to get that can get rid of it?

 

Did you read the post before yours?

 

great post guys just got turbo from an re amemiya race car. from ebay for $250
no shaft play turned out to have about 1/16" shaft play slightly more than the old one on the car. anybody know if thats ok or should i rebuild it.

 

gpopshop.com has rebuild kit for $78.

 

I hope noone minds the take over but, would this kit fix my smoking turbo? My S4 turbo is practically gushing oil out of the compression side.

T3 kit

 

Turbos_R_Us is who I got my rebuild kit from and while most of the seals are good quality I didn't use his snap rings. They're cheap and flimsy. Also the compressor back plate seal was smaller then the stock one, so I re-used the stock one. You MUST contact him for the right HT-18 kit. Also make sure you get a new carbon (compressor) seal for the HT-18, he'll know what you're talking about. And that kit doesn't show any new thrust collar. Might want to see if he can get you a new one of those as well.

I got a 360 thrust washer and it came with a new collar.

If you go with the 360 thrust washer the entire rebuild kit comes out to a little over 100 dollars. But like I said, some of the parts of the kit are junk and you shouldn't use. You'll see what I'm talking about once you tear the turbo down and start replacing things.