Not much pressure. This thread has pics of what I did to replace seals.

http://www.peachparts.com/shopforum/showthread.php?t=292856

It was warm so I repaired & didn't have to stop gap.

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85SD 240K & stopped counting painted, putting bac together. 84SD 180,000. sold to a neighbor and member here but I forget his handle. The 84 is much improved from when I had it. 85TD beginning to repair to DD status. Lots of stuff to do.