None of the instructions I’ve read on changing the rear seal mentions any RTV behind the lower seal in the retainer groove. Seems that might be a good idea on the lower half but I noted the old seal in the retainer did not have a square back that fully fills the recess (haven’t received new seals from Hughes to inspect yet). So, I’m wondering if the seal needs to be able to rotate or move some in the groove as the retainer is tightened down to seat the seal on the crank? Is that the case?
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