after i did my coupler the upper plenum gasket broke off where the bolt goes straight down on the snout, and then it leaked oil, im told its shouldn't, but took the bolt out, coated the threads of the bolt with red rtv, and put the bolt back in, no more leak.

now when i did my lim job, i cleaned all the rtv up, used a new gasket on the sc, and no leak now either.