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#1
01-06-2016, 07:34 PM
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Intake manifold vacuum leak question 72 HO
I finally got around to fixing the choke on my 72 HO. While at it I was checking for vacuum leaks with a can of starting fluid.
I noticed #4 port when sprayed on the crossover side increased the engines idle ever so slightly (vacuum leak??). When looking closer it appears the crossover itself has a crack in it. $$$$ Will a crack in the crossover cause a vaccum leak? Im not sure if crossovers have in fact vacuum in them. Could this be as simple as tightening the intake bolts again?? This is a 72 HO manifold with the separate heat crossover. Comments? Thanks in advance!!
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