As somebody else already said, you will not have a leak. THe manifold and head were stuck together for 34-35 years now. Removing the bolt for a a few minutes will not unbond those parts for sure. D^2 Quoting jason reizner <jreizner_lists@xxxxxxxxx>: > > the original negative battery cable on my '68 ht has > seen better days, and probably should get changed one > of these days. the only issue is that i'm slightly > hesitant to take it off because it's held on the > engine side by one of the bolts that holds the intake > down, and i don't want to inadvertantly cause a vacuum > leak by taking the bolt out and putting it back in. > am i just worrying too much or is there a slick way to > do this? > > thanks, > --jason > > jason reizner > chicago > 68 crown hardtop > > > > __________________________________ > Do you Yahoo!? > SBC Yahoo! DSL - Now only $29.95 per month! > http://sbc.yahoo.com > >