I have a PG Pump seal that has come out twice now. I ran it several years back and it happened with a direct drive coupler - ran it in high gear. I pulled it and converted over to standard. In the class I am running now they were pulling me on the starts so I am trying the auto again this time with a converter (per class rules). This class needs a gear reduction, so I am running it in low. I couldn't find the old yellow 3M adhesive so I used SealAll on the pump seal having remembered why I put it away in the first place. Seal seemed to drive in solid. Third night running it they threw the black flag and they radioed that I was on fire so I pulled in. Apparently the trans fluid straying on the header was creating quite a show. I noticed while removing the trans tonight that the seal has popped out again. Both times are pretty close to fresh builds. I had a tci bleed off valve body in the high drive version that has a small freeze plug cup with a drilled hole that I left in the case, will try to remove this restricter cup while I have it out this time. No bleeder style valve bodies allowed under this class, so installed a TSR manual valve body I had ran in low before. Nothing else really new here that hasn't been run successfully in my other builds. I can try put screws in to hold the pump seal, but not sure that addresses why it is happening. I am happy with the new final gear so willing to work with it some more. First time to see this, any suggestions?
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