ok im doing a rebuild on my stock turbo because i found this rebuild kit $80 for the HT-18 and i have a question does anybody have done it before? and i have a spare turbo i took apart and im doing the rebuild. i looked at it and i didnt see any oil seal for the exhaust side. what sould i look for and any tips that you guys wanna throw to help?

thanks
eddie

 

I saved this a couple years back, should be helpful. You probably need word to open it.

 

or OpenOffice, which is free.

 

i got it and i looked at it. the one question i have is that i didnt see a piston ring like thingy on the turbine wheel i know that when i took it apart theres was sonething in it but it was in pieces that what you my be talking about? thanks

eddie

 

IT looks...like...a piston ring. It's maybe 1/16" thick, and about 1/4" in diameter or so. IT is a fairly thin piece of metal with a gap between the ends. It goes on the rear of the shaft, by the turbine wheel. This is what generally wears out and causes smoke via the exhaust. It's probably the most important part of the turbo rebuild.

Even with new parts, rebuilding old stock turbos is a crapshoot. The turbine housings usually crack and warp a little and make the rebuild suspect. The surface that this piston ring rides against in the bearing housing sometimes warps or wears in such a way that even a new ring will not seal well and you'll still get oil in the exhaust and smoke. This is more so the case with the heat-sink FD twin turbos, but does apply to the old FC turbos as well.

 

*******ok im doing a rebuild on my stock turbo because i found this rebuild kit $80 for the HT-18 ********8

You paid too much. Next time go to http://www.gpopshop.com/services.html

Go to MAJESTIC TURBOS online to read about how the oil is sealed. http://www.majesticturbo.com/

The metal ring next to the penny is the seal.

The turbine seal sits in a groove nearest the turbine blades as noted in the attached jpg.

 

this is the same place i when to. is not $80 but like $78 something like that. i havent brought it yet because my turbo that was in the car blew and i have to get another one so im gonna wait a couple of weeks to get the rebuild kit. thanks

 

Which rebuild kit did you use? Was it on a S4?