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Vacuum wiper - F134

Discussion in 'Early CJ5 and CJ6 Tech' started by sbu22, Nov 30, 2009.

  1. Nov 30, 2009
    sbu22

    sbu22 Member

    New Orleans
    Joined:
    Nov 15, 2008
    Messages:
    72
    Working to get the 60 CJ5 ready for a brake tag. Finally figured out the wiper motor is vacuum driven. It appears the vac line was disconnected long ago. Three questions:

    1) Where on the engine is the vac line supposed to connect? This is an F-134 with a Holley carb. I don't see any potential connection points.

    2) Assuming that I figure the vac source out, what are the chances that the wiper motor is any good? In other words, should I just abandon the vac and change to electric?

    3) In searching the board, it appears that quite a few folks are unhappy with the "conversion" electrics that are out there. Anyone know a good brand/source if replacement is required?

    Appreciate the help.
     
    sbu22, Nov 30, 2009
    #1
  2. Nov 30, 2009
    bkd

    bkd Moderator Supreme Staff Member 2022 Sponsor

    K-Town Tenn.
    Joined:
    Apr 29, 2007
    Messages:
    3,294
    you've read this correct?
    How do I improve the operation of my vacuum motors?

    Vacuum windshield wiper motors work using a leather or rubber flap which is sealed with grease in the casing. Since these motors are usually 40+ years old, the grease can dry up. If the flap itself is not rotted or worn out, you can often get a vacuum motor working again by following these steps:

    1. Remove the wiper motor from the car.
    2. Find a clean spot and lay out paper (to catch small parts)
    3. Remove the screws (sometimes special square-headed) that secure the top plate to the half-round main body. Make sure you note the position of any hardware, sliding parts, etc.
    4. Lift the top plate off and set it aside.
    5. Examine the flap. If it is rotted or obviously damaged, you need to get it rebuilt. Hemmings Motor News lists several services that rebuild wiper motors.
    6. Use brake cleaner to remove all old grease from the inside of the half-round main body.
    7. Apply a thin layer of smooth, NON-DETERGENT grease to the inside. DO NOT use wheel bearing grease. Detergent grease will eat up the flap.
    8. Reassemble and reinstall the vacuum motor. If it still doesn’t work, send it off to be rebuilt or replace it. To lube the vacuum motor, I use graphite in an alcohol base.
    9. It is watery thin so gives good penetration to the moving parts, and then the alcohol evaporates and you have a non- sticky lubricant. I got real tired of cleaning off the dirt and stuff that was attracted by oil type lubes.

    someone will chime in with vac hookup.......if going electric the concensus is to buy quality (pricey) marine grade wiper motors
    HTH :beer:
     
    bkd, Nov 30, 2009
    #2
  3. Nov 30, 2009
    nickmil

    nickmil In mothballs.

    Happy Valley, OR
    Joined:
    Sep 23, 2002
    Messages:
    12,530
    My '57 has a vacuum pump built as part of the fuel pump. That is the vacuum booster for the wiper motors. The pump is hooked to the wiper motors on one port and to a port on the intake manifold from the other port. The idea is to not completely lose your wipers under load when manifold vacuum drops.

    Look at BKD's post as there is lots of good info there.
     
    nickmil, Nov 30, 2009
    #3
  4. Dec 2, 2009
    sbu22

    sbu22 Member

    New Orleans
    Joined:
    Nov 15, 2008
    Messages:
    72
    Thanks bkd and Nick. bkd - guess I still don't have a good handle on the site - I assume you're referring to a prior post or other site resource - where? I couldn't come up with it.
     
    sbu22, Dec 2, 2009
    #4
  5. Dec 2, 2009
    bkd

    bkd Moderator Supreme Staff Member 2022 Sponsor

    K-Town Tenn.
    Joined:
    Apr 29, 2007
    Messages:
    3,294
    if you go to the tabs at the top of the page click on "Technical".....lots of good info :beer:
    Jim
     
    bkd, Dec 2, 2009
    #5
  6. Dec 2, 2009
    sbu22

    sbu22 Member

    New Orleans
    Joined:
    Nov 15, 2008
    Messages:
    72
    Thanks again, Jim. Got it.
     
    sbu22, Dec 2, 2009
    #6
  7. Jul 14, 2011
    jkoz79

    jkoz79 New Member

    Central...
    Joined:
    Feb 27, 2006
    Messages:
    13
    Any names or brands of NON detergent grease?
     
    jkoz79, Jul 14, 2011
    #7
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