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Cj5/6 Windshield Wiper Line

Discussion in 'Early Jeep Restoration and Research' started by gotime, Mar 17, 2019.

  1. gotime

    gotime Sick with the car bug

    I'm trying to install the vacuum wiper lines correctly on a CJ5/6 and I'm having trouble finding images. I've seen several for the M38A1 but none for the civilian model. I'm pretty certain the line is metal going up the drivers side to short rubber hose to a metal offset "Y" to one wiper and then to a short metal run again. Here is the image of the M38A1 below and the link to that thread here Willys M Jeeps Forums-viewtopic-M38A1 Wiper Vacuum Line Routing

    [​IMG]

    Can someone post pictures of the manual or pics of an original setup for a CJ5/6? I'm also curious how the line ends before it connects to the rubber line from the dash. I don't think there is an air regulator on the civilian model. Does the metal line come out over the bottom part of the windshield or terminate at the bottom of the glass as the M38A1?

    Please help!
     
  2. Beach66Bum

    Beach66Bum 1966 Tuxedo Park Mark IV 2024 Sponsor

    My hosing is all rubber hoses. I looked at some Goggle images for civilian cj’s (Mine’s a 1966) and didn’t see any metal tubing. Now you have my curiosity.
     
  3. mickeykelley

    mickeykelley Well-Known Member

    My 58 has rubber hose and no regulating valve or remains of any holes to attach one. It also has several metal clips the right size for the rubber hose to attach it the windshield frame.
     
  4. Glenn

    Glenn Kinda grumpy old man Staff Member

    I'm pretty sure only the military used the metal line. I remember my CJ 5 only being all rubber vacuum tubing.
     
  5. ITLKSEZ

    ITLKSEZ Hope for the best, prepare for the worst

    My 3b had metal lines, but I can't remember where they began and ended.
     
  6. Keys5a

    Keys5a Sponsor

    The Kaiser-era CJs ran a rubber vacuum line through the dash (same hole shown on the M38a1 diagram), only the hose ran directly up to the inner edge of the windshield frame, exactly as the above diagram, to the same metal "Y"fitting, then the each vacuum motor. All the lines are rubber, and a little "extra" line is left slack at the dash to allow the windshield to fold down. The controls to operate the wipers are small slide switches where the lines attach to the motors. The military motors don't have the vacuum switches like the civvy models do. The rubber lines are held to the inner windshield frame by single-sided line clamps.
    Good luck depending on having the wipers work effectively unless you are decellerating down a hill!
    -Donny
     
    Last edited: Mar 18, 2019
  7. gotime

    gotime Sick with the car bug

    Can someone confirm that the piping would have been rubber on the civilian from a FSM picture or reference? Also, would the ventilated windshield have been rubber or metal/rubber? Any FSM references would be greatly appreciated.

    I'll probably never use my wipers, I just want then to be factory correct.

    Should there have been a rubber grommet in the dash or not?
     
  8. PeteL

    PeteL If it wasn't for physics, and law enforcement... 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Yes.
     
  9. Glenn

    Glenn Kinda grumpy old man Staff Member

    FSM clearly shows rubber hoses for civilian as mentioned.
     
  10. garage gnome

    garage gnome ECJ5 welder

    My cj5 had the original vacuum line in place when I got it.

    I Can't Leave Well Enough Alone

    [​IMG]
     
  11. gotime

    gotime Sick with the car bug

    Thank you!