vacuum | Ford Thunderbird forum club group 1955-2005 models

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vacuum

  1. zeroroadkill

    1955 heater vacuum valve open or closed

    On my ‘55 there is a heater water valve which is controlled by a vacuum valve under the dash on the heater plenum. The vacuum line runs to the windshield wiper motor and tee’s off to the heater vacuum valve which is controlled by the dash heater temperature lever cable. When there is no vacuum...
  2. zeroroadkill

    1955 292cid how to measure manifold vacuum?

    I tried to measure idle vacuum from the distributor vacuum line from the carb but it was 0" at idle. Is there another way to measure vacuum at idle? Can't seem to find any other vacuum lines... Thanks Bob
  3. F

    Vacuum Accuators for our 1966 and maybe others

    About 5 years ago I replaced 3 vacuum actuators for our '66 Tbird's HVAC system with a blend door actuator for 68-73 Mustangs, Motorcraft part # YH-161. Today I received 2 more in the mail that I purchased to repair the rear vent doors. I've seen used-originals going for about $60 each. 5 years...
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