Anyone ever tried to replace the intake gaskets? I can't seem to get access to the 1/4 allen head bolt. I have the shop manual and it just says remove them after taking all the wires and such out of your way. I can just get the allen wrench to them, but not set inside and I have no room to move the wrench. Is there some majic trick that I am missing? I would like to solve the back popping this weekend. Thanks.