It's also possible to use a piece of all thread rod and a few washers on that 2 X 4 to pull the seal into place, or at least put a little tension on it to keep the seal aligned while the BFH is used to drive it in.
Jerry


"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!