O ring material

[gt14rider 798]

Hi all, restoring my 1970 GT14, I'm working on the transmission 90-2062, read pfrederi  (sunstrand o ring) write up.  Thanks for the dash # conversion. Anyway, went on line and there are a lot of o ring materials, silicone, viton, epdm, buna n which is the best one to use?

Any help would be greatly appreciated.

[oliver2-44 9,871]

Viton is what we used for Oil & Grease, medium temperature applications at work, around the power plants.   

[peter lena 8,726]

gt14rider,don't forget to lightly lubricate the Viton rings with related oil to prevent " rolling " the o ring , causing a leak. verify that the o ring stays  to size before and after installation. Pete

[pfrederi 17,885]

Viton is probably best but more expensive.  i do not have any issues with Buna-n

 

 

[gt14rider 798]

Thanks  for all your help, will get some ordered.