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nippondenso compressor shaft seal

echeeves on Wed June 04, 2008 5:50 PM User is offline

Year: 1993
Make: Toyota
Model: Truck
Engine Size: 3.0
Refrigerant Type: R-12
Ambient Temp: 85
Pressure Low: 0
Pressure High: 0
Country of Origin: United States

Last year I replaced the shaft seal and the large o-ring on the front of the compressor. It lasted about 2 months and just "blew out" one day I guess because one day I had good cold air and the next day nothing but fluorescent dye coming from behind the clutch. the seal kit i purchased from carquest. Im thinking maybe an inferior kit? I'm pretty decent at most of the mechanical work I do and I feel like everything went very smooth during the repair. I am very meticulous about laying things in the order they come off and cleaning everything very thorough before reassembly. I wanted to try to repair this again, but wanted some input from ya'll.
Any input would be greatly appreciated, Thanks!!

TRB on Wed June 04, 2008 7:37 PM User is offlineView users profile

Doubt the seal kit was defective. If you touch the seal surface at all it will never seal.

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Chick on Wed June 04, 2008 8:09 PM User is offlineView users profile

Also, was it well lubricated upon installation? Not sure how they go in, but check the snap ring if it has one. If not seated properly it can blow right out..Just a thought..

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echeeves on Fri June 06, 2008 8:08 AM User is offline

Tim,
I was not aware that touching the seal surface would affect the sealing. I can't remember if I touched it but I very well may have. I've done a lot of mechanical work in my life and usually feel pretty confident about my work. I hope that was the problem because I was beginning to think I was slipping!! (that could still be true!) Thanks for that info!!
Chick,
If I remember correctly I did see little dabs of lubricant on the seal, I lightly seated the seal and I think it had a snap ring, it's been so long I can't remember. Usually on something like that I always install a new snap ring.
Thanks for the input guys, I will try this again. Selling the good old yota and a non working a/c will kill the value right now!!!

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