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Old 04-30-2013, 09:49 PM   #1 (permalink)
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Default Convertible Top Sag

Hello

I am trying to get the sag out of my top, at the hinge above the passenger window, the gap will not close. I can roll the window up all the way because frame bows in the middle.

I have adjusted the stop screw and the eccentric bolt. All I can do is make it worse.

Any suggestions?

Here is a photo of the gap in the frame. If I push up with my hand till it closes, the window will roll all the way up.

Thanks

Gary
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File Type: jpg 100_3608.jpg (85.2 KB, 37 views)
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1973 450SL
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Old 04-30-2013, 10:55 PM   #2 (permalink)
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If the eccentric does not give enough adjustment check

- bushings, worn bushings can lead to slop the adjustment can not overcome.

- the side rails and balance link (S shaped bar that connects at the eccentric and frame bracket) for damage/bending.

- Also check the eccentric bolt itself to see if maybe it is worn and is not allowing full adjustment (unlikely but possible).

- ensure that the weatherstripping is not binding or the rear window is jamming the rear rail and limiting adjustment.

- frame mounting, ensure its centered and aligned properly (not a likely cause, but can't hurt to check)

Post results.
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8R03S : 76A I 2A 15M 72 5 U
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8R01C : 65A M 2A 01E 72 2 W - CS/GT
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Old 05-01-2013, 02:21 PM   #3 (permalink)
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The eccentric does seem to move the frame up and down about a 1/2in. It is just topped out.

If the eccentric bolt is worn out, where could I get one?

Thanks

Gary
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1967 CV 289 A Code
1973 450SL
http://www.vintageleds.com/
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Old 05-01-2013, 03:21 PM   #4 (permalink)
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I think that your car needs the top frame adjusted where it bolts to the body.
Lower it /how the frame bolts into the body/at the opposite site of the side where its not aligning.
MY experience is you are not going to be able to fix this with top installed/pads. Should have been fixed before you had the canvass installed.
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Old 05-01-2013, 06:10 PM   #5 (permalink)
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Set it to "flat" (parallel to the window, ignore the gap for now).

Then, as noted in a few prior posts, check to see if you can adjust the frame mounts. (3 bolts to the body down in the well area, need to remove rear inner 1/4's to access them). They are just visible on the right in this photo, can't find a better one of that area from my resto pics.



This may be the issue. As you note the side rail adjusts 1/2" it would appear the adjustment is correct but that the frame on that side is sitting too high or too low. Drop the windows and you can check level and alignment with some floor-to-frame or jamb-to-frame measurements on both sides with them set in a similar alignment to the glass edge to confirm symmetry.

If the eccentric is worn they are not reproduced and you need to find a donor car/frame to part out... but from the level of adjustment that seems unlikely.
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"True terror is to wake up one morning and discover that your high school class is running the country."
Kurt Vonnegut


8R03S : 76A I 2A 15M 72 5 U
8R01S : 65A B 2A 28M 72 7 5 - Factory GT
8R01C : 65A M 2A 01E 72 2 W - CS/GT
8F01X : 65A I 2G 20E 24 1 U - EXP500 to-be

http://i64.photobucket.com/albums/h1...pr_07_tiny.jpg
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Old 05-01-2013, 09:48 PM   #6 (permalink)
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I will give that at try, but it looks like my bolts can only adjust side to side, not up and down.

Gary
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1967 CV 289 A Code
1973 450SL
http://www.vintageleds.com/
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Old 05-02-2013, 01:30 AM   #7 (permalink)
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Yep, there is very limited up-and-down movement.

Thing is to get it set right with respect to lining up to the window, then getting the windows out of the way and then try to look at each side and figure out where the frame misalignment is coming from.

Take a lot of point-to-point measurements and see what doesn't line up and then, hopefully, see how to correct it.

Very odd...
__________________
"True terror is to wake up one morning and discover that your high school class is running the country."
Kurt Vonnegut


8R03S : 76A I 2A 15M 72 5 U
8R01S : 65A B 2A 28M 72 7 5 - Factory GT
8R01C : 65A M 2A 01E 72 2 W - CS/GT
8F01X : 65A I 2G 20E 24 1 U - EXP500 to-be

http://i64.photobucket.com/albums/h1...pr_07_tiny.jpg
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