1973 c20 manual window regulator problem

Discussion in 'Tech Discussion' started by 73c20jim, Jun 24, 2018.

  1. 73c20jim

    73c20jim Supporting Member Supporting Member

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    350 CID
    Well the driver side window was off the track when I got it. It was hot that day when I bought it so I didn't check it.

    According the the parts manual many 1973 parts are unique to the year. I tried to re-track the regulator. I couldn't get the roller to go into the slot on the rail. (Using service manual to guide me.) Just a little too long. So I ordered a 1973 (one year) window regulator. It came with 5/8" rollers. My window uses 15/16" (?) rollers. (The regulator that came with the car has the large rollers.)

    The length of the arms on the '73 regulator arms just a little shorter than the one that came. So it looks like I need short arms ('73) but large rollers.

    I am at a loss.

    Please advise.

    Thanks.

    Jim
     
  2. 73c20jim

    73c20jim Supporting Member Supporting Member

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    Printed pages for regulator install from 1974 manual, Same as 1973 manual. Rechecked arm length between my two regulators. Seem to be same length, not different as I thought before.

    The window seems to be inserted at a skewed angle in its holding track. That ain't right.

    Pictures when I go outside.

    Still need help on how to install this regulator. Any tricks.

    Please......
     
  3. roundhouse

    roundhouse Full Access Member

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    It’s Been a while since I’ve done it
    I don’t remember any tricks

    Think I might have loosened thre vent window and leaned it a little to get it out of the way
     
  4. 73c20jim

    73c20jim Supporting Member Supporting Member

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    Pictures IMG_0993.JPG IMG_0994.JPG
     
  5. 73c20jim

    73c20jim Supporting Member Supporting Member

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    Vent window assembly is completely removed as per service manual.
     
  6. Snoots

    Snoots Supporting Member Supporting Member

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    It's all good Jim.

    I learned to do mine after I ran a Norwalk, CA cop off the road while trying to get my window rolled down.

    First, go buy a small tube of 3M Window-Weld.
    Let the trolley (that's the piece in which the glass sits) sit in the sun to soften the old goop and wear gloves.
    You don't want to get stabbed by a home-made cleaning tool or screwdriver or whatever.
    Then, carefully clean out all of the gunk in the track of the trolley.

    Run a good bead of 3M WW down the center and center your glass in it.

    Clean and use a small amount of bearing grease in the track where the rollers go.

    Now you're ready to re-install.

    Here are some vids on that. The photography is terrible and the dialog needs help but you'll get it.





    Be sure to let us know how it turns out or if you have any other questions.
     
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  7. 73c20jim

    73c20jim Supporting Member Supporting Member

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    Second video is the winner. Haven't tried it yet but I was doing it all wrong.
     
  8. 73c20jim

    73c20jim Supporting Member Supporting Member

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    Any place to get a 1973 5/8" roller trolley??? Then I can use my new 5/8" roller regulator instead of buying a new one. I'll just change the lower roller to 15/16".
     
  9. 73c20jim

    73c20jim Supporting Member Supporting Member

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    Going with post '73 (maybe late '73) window parts, because that's what in there. Window and trolley at glass guy to reset window properly. Get it back tomorrow.

    I tried with razor and rubber hammer. Was going to get BFH when I stopped and decided to give it to a pro.
     
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  10. 73c20jim

    73c20jim Supporting Member Supporting Member

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    Thanks for help.
     
  11. 73c20jim

    73c20jim Supporting Member Supporting Member

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    Window still at "pro". Tuesday earliest.
     

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