| Author | Topic |
|---|
Location:
Sydney
Registered:
January 2004
|
|
turbo seals after a year of no use?
|
Mon, 19 July 2004 08:44
|
 |
I'm just got the option of getting a turbo that has been sitting around for about year. Does anybody know how long it takes for the oil seals to go hard in these things, providing it's stored well.
Just don't want to rig it up and find it blowing smoke. Apparently it was fine on the car.
thanks
|
|
|
Location:
Bundaberg, Qld.
Registered:
May 2002
|
|
Re: turbo seals after a year of no use?
|
Mon, 19 July 2004 08:59
|
|
the 1st and 2nd t25 turbo's i got had been sitting awhile, it did smoke a bit and then the seals softened again and stopped.
i think some do and some dont soften back up.
|
|
|
Location:
Sydney
Registered:
January 2004
|
|
Re: turbo seals after a year of no use?
|
Mon, 19 July 2004 09:26
|
|
hmmm. Interesting, so yours were all good. I think the turbo is about 5 years old..so not really that old, just a little worried about it sitting around, I don't think it's that easy to put in new seals either..I guess every 2nd hand turbo is a bit of a gamble
thanks for the reply feral
|
|
|
Location:
Canberra
Registered:
May 2002
|
|
Re: turbo seals after a year of no use?
|
Mon, 19 July 2004 09:28
|
|
Soften up? The turbos I've had all have a metal ring seal on the turbine end of the shaft (like a piston ring), and either a carbon or dynamic seal on the compressor side. How can these go hard?  They're not like valve stem seals.
|
|
|
Location:
Sydney
Registered:
January 2004
|
|
Re: turbo seals after a year of no use?
|
Mon, 19 July 2004 09:50
|
|
|
So it should be fine if the turbo has been sitting around a while?
|
|
|
Location:
Bundaberg, Qld.
Registered:
May 2002
|
|
Re: turbo seals after a year of no use?
|
Mon, 19 July 2004 12:09
|
|
| TE72_Turbo wrote on Mon, 19 July 2004 19:28 |
Soften up? The turbos I've had all have a metal ring seal on the turbine end of the shaft (like a piston ring), and either a carbon or dynamic seal on the compressor side. How can these go hard? They're not like valve stem seals.
|
is only how it was explained to me.. 
|
|
|
Location:
Sydney
Registered:
January 2004
|
|
Re: turbo seals after a year of no use?
|
Mon, 19 July 2004 12:51
|
|
TE72 (Phil is it?) - I remember you had some probs with your turbo oil seals when you replaced valve stem seals on your GZE only to find the turbo was the culprit. Did you fix the turbo up yourself?
Do the oil seals usually wear out rather than go hard then?
Thanks
|
|
|
Location:
Canberra
Registered:
May 2002
|
|
Re: turbo seals after a year of no use?
|
Tue, 20 July 2004 12:43
|
|
| Quote: |
I remember you had some probs with your turbo oil seals when you replaced valve stem seals on your GZE only to find the turbo was the culprit.
|
No, the problem was that the oil return from the turbo was positioned too low in the sump (below the oil level), making it difficult for the oil to exit the turbo, so it found its way past the rear seal instead  Excess oil flow to the turbo can cause the same problem also, the bearings are only supposed to be fed a contstant trickle of oil to lubricate them, not swim in oil, hence why some setups need a restrictor in the feed line.  Worn seals (as opposed to hardened seals) will also cause oil loss/smoking.
Cheers
Phil
|
|
|
