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    Unhooking vac advance?

    Well I spoke too soon. The dist on the lincoln is acting up again. The problem lies with teh vac advance. When it is hooked up, the car bucks and everything else. When it is unhooked, it runs fine. What are the side effects if I just leave it unhooked? Worse gas mileage? Low power output? My dad needs this car for work, I want it to be reliable, but I don't have the cash to fix the fucking thing. ANy help?
    Pebbles-1968 Ford F250
    Pile of Junk! An Electronics Project Site (To get wet by)<---Clicky! NEW STUFF!!!!

    #2
    Depends where its hooked up. You should have it connected above the throttle plate so the vacuum increases with throttle. If its bucking and acting stupid, it sounds like either the base timing is too advanced, or you're getting too much or constant vacuum. Leaving it disconnected won't really hurt anything, but it may eat into the fuel mileage a bit as well as cause a bit of power loss. It might also bog slightly on acceleration. Won't damage the engine any though. Also, depending on the distributor, you may have mechanical advance as well as the vacuum so it won't affect it quite as much.
    86 Lincoln Town Car (Galactica).
    5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley

    91 Lincoln Mark VII LSC grandpa spec white and cranberry

    1984 Lincoln Continental TurboDiesel - rolls coal

    Originally posted by phayzer5
    I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers

    Everything looks like voodoo if you don't understand how it works

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      #3
      The line is hooked above the throttle plate. It's got both mechanical and vac advance. The timing is at 10*
      Pebbles-1968 Ford F250
      Pile of Junk! An Electronics Project Site (To get wet by)<---Clicky! NEW STUFF!!!!

      Comment


        #4
        Originally posted by grandpaslincoln
        The line is hooked above the throttle plate. It's got both mechanical and vac advance. The timing is at 10*
        Just leave your vacuum off and don't worry about it if your part throttle response is OK. You will not be hurting anything because you have your base advanced to 10 to begin with. Mileage will not suffer.

        Comment


          #5
          Sweet, thanks mangs!
          Pebbles-1968 Ford F250
          Pile of Junk! An Electronics Project Site (To get wet by)<---Clicky! NEW STUFF!!!!

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