1974 Comet AC vaccum lines?

Discussion in 'Technical' started by Underhungsea, Aug 22, 2019.

Tags:
  1. Underhungsea

    Underhungsea Member

    Joined:
    Apr 25, 2016
    Messages:
    12
    Likes Received:
    2
    Trophy Points:
    5
    Location:
    Hurricane, wv
    Vehicle:
    1971 Maverick Grabber
    The hole that the factory lines should go through is open with no grommet or lines. If I buy a new grommet and same diameter lines where do i route them to?

    1974 250 6cyl
     
  2. Craig Selvey

    Craig Selvey Indiana State Rep - MCCI

    Joined:
    Mar 9, 2002
    Messages:
    17,861
    Likes Received:
    1,080
    Trophy Points:
    878
    Location:
    Albany, Indiana
    Vehicle:
    1972 Maverick Grabber - Color: Orange Also, 1976 Ford Maverick 4-door, 1977 Mercury Comet 2-door.
    You will need a factory schematic to see where the lines go. Under the hood the vacuum lines go to the heater valve and the vacuum canister.
     
  3. Underhungsea

    Underhungsea Member

    Joined:
    Apr 25, 2016
    Messages:
    12
    Likes Received:
    2
    Trophy Points:
    5
    Location:
    Hurricane, wv
    Vehicle:
    1971 Maverick Grabber

    Happen to know where I could find these schematics? And could I just buy vac lines that fit and a gromment to replace them?
     
  4. rthomas771

    rthomas771 Member

    Joined:
    Jan 22, 2008
    Messages:
    7,901
    Likes Received:
    793
    Trophy Points:
    483
    Garage:
    1
    Location:
    GA
    Vehicle:
    '74 Maverick 250 5-Speed.'60 Falcon V8 Toploader 9". '66 Falcon Sports Coupe, '63 Falcon Sports Coupe
    Is this what you're looking for

    vaccumdiag.gif
     
    71gold likes this.
  5. Underhungsea

    Underhungsea Member

    Joined:
    Apr 25, 2016
    Messages:
    12
    Likes Received:
    2
    Trophy Points:
    5
    Location:
    Hurricane, wv
    Vehicle:
    1971 Maverick Grabber

    I beleive so, my actual grommet in firewall and ac compressor lines are missing as well. So any ac diagrams would be appreciated
     
  6. jasonwthompson

    jasonwthompson Member

    Joined:
    Mar 25, 2012
    Messages:
    1,031
    Likes Received:
    274
    Trophy Points:
    186
    Location:
    Carrollton TX
    Vehicle:
    72 Comet
    Rubber vac lines are just rubber vac lines, nothing special about them. The grommet is about an inch thick with holes in it for the lines to pass through. If you want something close to factory, you may want to look at rubber plugs and then just drill the correct diameter holes for the vac lines. On an AC car there are 4 holes in the grommet, 3 vac and 1 power wire that energizes the compressor clutch

    See stolen pic below.
    [​IMG]
     
    Krazy Comet likes this.
  7. Underhungsea

    Underhungsea Member

    Joined:
    Apr 25, 2016
    Messages:
    12
    Likes Received:
    2
    Trophy Points:
    5
    Location:
    Hurricane, wv
    Vehicle:
    1971 Maverick Grabber
    Do you know where the lines/wire go to? Thanks in advance!
     
  8. rthomas771

    rthomas771 Member

    Joined:
    Jan 22, 2008
    Messages:
    7,901
    Likes Received:
    793
    Trophy Points:
    483
    Garage:
    1
    Location:
    GA
    Vehicle:
    '74 Maverick 250 5-Speed.'60 Falcon V8 Toploader 9". '66 Falcon Sports Coupe, '63 Falcon Sports Coupe
    The wire goes between the compressor and fan switch.
     

Share This Page