t28 rebuild questions

[skylindrftr]

Well it so happens that I needed a new o-ring seal for my t28 and turbo city in orange was nice enough to send me one for free. But the o-ring they gave me looks completely different than the one that I have on now. Could the older one just be a result of age (the flatness of it). Also, as you can see from the pictures I really had to stretch the new o-ring around the center section to get it to fit. After that when I put the compressor housing back on, it doesn't seal flatly as can be seen from the picture. I have not bolted it down yet so I do not know if it will. I wanted to see what advice people could give first. Also, before this I put high temp orange silicon in the cracks of the old o-ring and around the general area, would this be a better alternative? Thanks for you time.

Take a look at the pics below please.
http://i5.photobucket.com/albums/y159/jdm240/DSCN2256.jpg
The compressor housing next to the two o-rings, one new, the other dead.
http://i5.photobucket.com/albums/y159/jdm240/DSCN2255.jpg
The center section.
http://i5.photobucket.com/albums/y159/jdm240/DSCN2257.jpg
Center section with new o-ring.
http://i5.photobucket.com/albums/y159/jdm240/DSCN2259.jpg
With the new o-ring, it does not seal flat.

[skylindrftr]

noone knows?

[skylindrftr]

Please help! I know I already had a similar post but I assure you this is a different problem!

[mizizax]

im about to rebuild one, but havent yet so i cant give any advice from experience, but with this rebuild kit it looks like there is 2 similar size o-rings and i think you might have gotten the smaller of them, when the larger is what you need


http://img521.imageshack.us/img521/5811/untitledou6.png (http://imageshack.us)




doubt this will help, but fuck it

[Jakob]

its cool, the old o ring was there for years and when you tight it (be careful dont overtight it!) it will be flat... its like a fucking gasket... it will only seal properly when you squeeze it a bit... put the ring on, screw the compressor housing on it and its cool. it has to be like that, its all good. it was the same on my turbo and its running fine!

[skylindrftr]

Ok cool thanks, should I put any high temp silicon around the edges to seal it or should it be fine?

[Sileighty_85]

Ok cool thanks, should I put any high temp silicon around the edges to seal it or should it be fine?

Well more than likely your turbo will just blow out the silicone so really no point.

[skylindrftr]

Ok cool thanks, as soon as I get the crack under the wastegate hole welded ill put this thing back together =)

[Jakob]

it should be fine... thats the reason why its not sealing flat... the ring will be squeezed and it will be sealed perfectly...

[skylindrftr]

Sounds good, I was just worried b/c as you can tell by the pic the new o-ring was way small and took a lot of stretching to get on there!

[skylindrftr]

Update!!!
I got my new circuit sports stainless lines
http://i5.photobucket.com/albums/y159/jdm240/DSCN2260.jpg

Also I got the cracks in my hotside welded by the guys over at fsr, here is the before and after:
http://i5.photobucket.com/albums/y159/jdm240/DSCN2208.jpg
http://i5.photobucket.com/albums/y159/jdm240/DSCN2261.jpg

I was told that there is a good chance of the cracks forming again and that I might have to get a new hotside as soon as this summer, is this true? Any other way to prevent or fix this? Now all I have to do is get my buddy at the machine shop to grind down the welds =)

[zoototheyork]

it wont crack

[zoototheyork]

if it was done right. mine never has after 1 year of 15psi daily

[skylindrftr]

and yours was rewelded as well?