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Discussion Topic:
Bottom Window Channel Dimensions
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JayChicago |
03-27-2019 @ 4:23 PM
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Member
Posts: 480
Joined: Jan 2016
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Follow-up: Windows are in the car, going up-down and fore-aft as they were meant to do. Thanks to all for your help. I had to relocate the lower glass channels on the glass as outlined above by TomO. Went to a local glass shop for the R&R on the glass channels. Must have been a piece-of-pie for a pro who has done it before, only charged $35. Well worth it, spared me the anxiety of breaking the glass. Anyone buying the aftermarket lower glass channels that are listed as fitting a multitude of years should know they will not necessarily work out of the box, probably will have to be cut down. To do that you will need at least one original channel to match, or a dimensioned drawing of an original as I got here from Don Rogers. Going to give a plug for Regulator Roy, who advertises every month in the V8 times: He had a part I needed that I could not find with the usual vendors. And he is a genuinely nice guy, enthusiastically spent time on the phone with me to help me sort out my problem.
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TomO |
03-20-2019 @ 9:15 AM
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Senior
Posts: 7250
Joined: Oct 2009
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Jay, I use a piece of 1"x 2" wood seated against one end of the channel and then tap on the wood until the end of the channel is free from the glass. Then I used a 3/8" dowel to work the rest of the channel off of the glass.
Tom
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JayChicago |
03-19-2019 @ 10:02 PM
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Member
Posts: 480
Joined: Jan 2016
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Tom Yes, I agree, I think that is the right procedure. Thanks. Now I have to work up the courage to attempt removing the channels without breaking the glass. Both appear to be the original glass, in good condition with minimal delamination. I think I will take them to a near-by glass shop that has done restoration work, see if one of their old-timers is not afraid of it.
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TomO |
03-19-2019 @ 7:48 AM
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Senior
Posts: 7250
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Jay, You may have answered your own question. The original channel is 32 7/16" long. You said in your previous post that when it is centered on the glass, there would be 9/16" to the end of the glass on both ends. That would make the glass 33 9/16" long at the bottom edge. If you place your shorter channel on the glass so that the channel is 9/16" from the front edge of the glass, it should work. From you photo, it looks like the channel is about 2 1/2" - 3" back from the front of the glass. If it doesn't, try this: Use a couple of short pieces of setting tape to hold the channel to te glass but are short enough to allow the glass to move in the channel. Put the channel on the glass near where you think it should work. Then install the glass in the car. If the problem is still the same, (the glass moves forward and jams against the frame) move the channel to the front of the glass about 1/16" and repeat. If the problem changed, move the channel back on the glass. I used a rubber hammer to move the glass in my coupe when I had the short pieces of tape holding the glass.
Tom
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JayChicago |
03-18-2019 @ 10:20 PM
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Posts: 480
Joined: Jan 2016
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I don't doubt that centering the channel on the glass would work if I had an original glass channel. From the picture Don Rogers posted I see that the original was the full width of the glass, less 9/16 inch front and rear to clear the up-down run channels. But both of the glass channels I am working with are considerably shorter, and the two of them are not the same. The after market glass channel available today is listed as fitting years 34-40. I am thinking that one aftermarket piece can be made to work on all those years because the over-all length of the channel is not critical. But I believe the location of the pin that engages the cam is critical.
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3w2 |
03-18-2019 @ 6:37 PM
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Posts: 835
Joined: Oct 2009
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One last try; think about the lipped rubber insert in the metal channel that the glass nests into and what its secondary purpose is besides holding glass firmly in the channel. There is only one position on the glass that secondary purpose (keeping most of the water out) can be served as it does not extend out beyond the ends of the metal channel.
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JayChicago |
03-18-2019 @ 6:24 AM
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Posts: 480
Joined: Jan 2016
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Yes, of course it has to be clear of the side run channels front and back. But there is more to it than just that. It also has to be located on the glass so the cam will function properly.
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TomO |
03-18-2019 @ 6:20 AM
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Senior
Posts: 7250
Joined: Oct 2009
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Jay, Dave (3w2) is correct. Your channel is too close to the back of the glass, so it cannot move forward enough to engage the cam. If you have it too far forward, it would engage the cam before it is closed. I would center the channel on the glass.
Tom
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3w2 |
03-18-2019 @ 5:02 AM
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Senior
Posts: 835
Joined: Oct 2009
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The principle is the same regardless of it being a sliding vent window. The metal channel has to clear the side runs in any and all positions of the glass, up, down, and sideways.
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JayChicago |
03-17-2019 @ 4:38 PM
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Member
Posts: 480
Joined: Jan 2016
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I believe (right now at least) that my problem is the bottom glass channel is not at the right location on the glass. As I crank the regulator the glass moves forward and jambs against the window frame before the regulator and that big cam is in a position to lower the glass. Here is a pic of the bottom glass channel with the regulator out of the picture. I am hopeful someone with a 37 tudor can check the dimension in question. That will locate the bottom channel on the glass. Thanks Sorry picture got rotated when attached here. Don't know why that happened, don't know how to edit a picture once attached here.
This message was edited by JayChicago on 3-17-19 @ 4:43 PM
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