The 3000 Forum
BT7 Tonneau Cover
Posted by CaptRandy
CaptRandy
Randy Alkins
Warrington, Pa, USA
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Dec 28, 2018 10:13 PM
Joined 6 years ago
365 Posts
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The leatherette tonneau cover for my BT7 has shrunk about 3 inches in length so it will not reach the dash when connected at rear. Any ideas of options available to correct it? Sew in a piece of leatherette to lengthen the cover?
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sliproc
Kevin Quistberg E
Long Beach, CA, USA
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Dec 29, 2018 10:50 AM
Joined 3 years ago
354 Posts
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Randy,
That's an impressive amount of shrinkage, how long has it been since it fit? I'm assuming at some point this tonneau originally fit your car. Unstretched vinyl has a tendency to shrink, especially when it's cold. The good news is if it can shrink 3" it can probably be stretched 3". IMO the best way to proceed is to let the sun do the work for you. First I'd attach the front middle snaps only, then I'd attach a padded pair of vice grips to the middle rear so you can tie a rope to them, pull tension on the rope and tie it off at the rear bumper. Ideally this contraption should sit out in the hot sun(the hotter, the better)for hours. Every couple hours you can go out and retension the rope as the vinyl is relaxing in the heat until the snaps meet. Once you make that first connection you can work your way out from the center.
Your biggest problem will be this time of year, short days and cold weather. If you sew in a 3" extension you'll probably wind up with a big sag in the tonneau.
That's an impressive amount of shrinkage, how long has it been since it fit? I'm assuming at some point this tonneau originally fit your car. Unstretched vinyl has a tendency to shrink, especially when it's cold. The good news is if it can shrink 3" it can probably be stretched 3". IMO the best way to proceed is to let the sun do the work for you. First I'd attach the front middle snaps only, then I'd attach a padded pair of vice grips to the middle rear so you can tie a rope to them, pull tension on the rope and tie it off at the rear bumper. Ideally this contraption should sit out in the hot sun(the hotter, the better)for hours. Every couple hours you can go out and retension the rope as the vinyl is relaxing in the heat until the snaps meet. Once you make that first connection you can work your way out from the center.
Your biggest problem will be this time of year, short days and cold weather. If you sew in a 3" extension you'll probably wind up with a big sag in the tonneau.
CaptRandy
Randy Alkins
Warrington, Pa, USA
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Dec 29, 2018 12:26 PM
Joined 6 years ago
365 Posts
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Guess I will have to wait for one of those warm weeks in Feb to attempt this. Thanks for idea.
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Three Rivers, CA, USA
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Dec 29, 2018 12:58 PM
Joined 4 years ago
576 Posts
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Randy,
Lay it out flat inside a warm room for a week and see what happens. If it doesn't stretch after that it's probably a goner.
Dave
Lay it out flat inside a warm room for a week and see what happens. If it doesn't stretch after that it's probably a goner.
Dave
CaptRandy
Randy Alkins
Warrington, Pa, USA
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Dec 29, 2018 02:26 PM
Joined 6 years ago
365 Posts
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Three Rivers, CA, USA
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Dec 29, 2018 03:51 PM
Joined 4 years ago
576 Posts
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I think anything warmer than 60 degrees would help. Another thing you might try is to hang it up, some how, and use a heat gun or hair dryer.
Dave
Dave
sliproc
Kevin Quistberg E
Long Beach, CA, USA
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Dec 29, 2018 04:46 PM
Joined 3 years ago
354 Posts
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Randy,
While long, hot, sunny days are in short supply this time of year (especially in PA) to try this method, you probably won't have much use for it this time of year either.
While long, hot, sunny days are in short supply this time of year (especially in PA) to try this method, you probably won't have much use for it this time of year either.
CaptRandy
Randy Alkins
Warrington, Pa, USA
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Dec 29, 2018 05:55 PM
Joined 6 years ago
365 Posts
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I do keep the regular top on most of the time but while in garage thought I would try putting it on for a while then found it shrunk.
Three Rivers, CA, USA
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Dec 29, 2018 08:16 PM
Joined 4 years ago
576 Posts
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Watertown, NY, USA
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Dec 29, 2018 08:18 PM
Joined 6 years ago
796 Posts
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Randy,
How old is that Tonneau Cover?
You can get that vinyl to stretch a long ways with a good Heat Gun but
3 inches might be a bridge to far so maybe it's time for a new one.
If you really love your car get a canvas tonneau and you'll love it even more.
It will add a ton of curb appeal.
Good luck,
Peter
How old is that Tonneau Cover?
You can get that vinyl to stretch a long ways with a good Heat Gun but
3 inches might be a bridge to far so maybe it's time for a new one.
If you really love your car get a canvas tonneau and you'll love it even more.
It will add a ton of curb appeal.
Good luck,
Peter
CaptRandy
Randy Alkins
Warrington, Pa, USA
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Dec 30, 2018 08:56 AM
Joined 6 years ago
365 Posts
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Peter, it is about 25-30 yrs old so I think you are correct. Will loo into new one this spring.
sliproc
Kevin Quistberg E
Long Beach, CA, USA
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Dec 30, 2018 11:10 AM
Joined 3 years ago
354 Posts
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Randy,
You've got nothing to lose by attempting to refit your old tonneau, maybe it'll work maybe it won't. I've always considered the tonneau cover to be an ablative piece of equipment, it's designed to protected the much more expensive interior from sun and weather if, like me, you drive with the top down. I've had three on my TR7, two on my Jensen-Healey and I'm about due for a second on the Austin-Healey. Since I almost never use them I have the tops for the Austin and Jensen stored in the garage.
One thing to consider if you're thinking about canvas(top or tonneau), Peter is right it looks awesome, however any color besides black is very difficult to keep clean and get clean.
You've got nothing to lose by attempting to refit your old tonneau, maybe it'll work maybe it won't. I've always considered the tonneau cover to be an ablative piece of equipment, it's designed to protected the much more expensive interior from sun and weather if, like me, you drive with the top down. I've had three on my TR7, two on my Jensen-Healey and I'm about due for a second on the Austin-Healey. Since I almost never use them I have the tops for the Austin and Jensen stored in the garage.
One thing to consider if you're thinking about canvas(top or tonneau), Peter is right it looks awesome, however any color besides black is very difficult to keep clean and get clean.
rjray
Ron Ray
Kansas City, MO, USA
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Dec 31, 2018 10:18 AM
Joined 2 years ago
8 Posts
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I would say 3 inches in nearly impossible to get back. I still have my original one from 1959. I didn't bother with it when I finally got the car back on the road in 2006, after over 20 years of storage and a complete restoration. I went with the "original English vinyl" version for both the soft top and tonneau cover.
Even if you could regain the 3 inches, with the age of the cover it would just be a matter of time when the stitching for the zipper fails.
If you get a new cover, like a Robbins, I suggest you specifically order one with a brass zipper. Remember, Tom's Toys offers 15 percent off Moss regular prices, which are Robbins covers. Also, watch for the Moss sale on these items. Tom offers additional discounts on Moss sales prices too.
,
Even if you could regain the 3 inches, with the age of the cover it would just be a matter of time when the stitching for the zipper fails.
If you get a new cover, like a Robbins, I suggest you specifically order one with a brass zipper. Remember, Tom's Toys offers 15 percent off Moss regular prices, which are Robbins covers. Also, watch for the Moss sale on these items. Tom offers additional discounts on Moss sales prices too.
,
CaptRandy
Randy Alkins
Warrington, Pa, USA
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Dec 31, 2018 11:00 AM
Joined 6 years ago
365 Posts
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Greensburg, PA, USA
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Dec 31, 2018 01:25 PM
Joined 5 years ago
197 Posts
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