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Sigmaproject
14-11-2006, 05:15 PM
Hi all, Could someone enlighten me as to the Carby dissy vacuum canister with 2 vacuum take off points. Why the 2 ports? I assume they are both vacuum.
Any help appreciated.:)

magna1988tn
15-11-2006, 01:35 PM
I have been wondering the same thing, but I actually think that the membrane in the vacuum unit is moved by the difference in vacuum between the 2 ports. When both ports draw the same amount of vacuum, the membrane won't move and no vacuum advance is produced. That's my explanation anyway :)