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Sill Cover Mats / Shrinking Roof

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Sill Cover Mats / Shrinking Roof #1
rlmccullough Robert McCullough Montpelier, VT, USA Sign in to contact 1963 MG MGB 1966 MG MGB MkI	Topic Creator (OP) Nov 25, 2015 08:37 PM Joined 9 years ago 94 Posts

Has anyone had any success in repairing tears/separations in the rubber sill covers? I would rather repair them than replace them. Also, my 1966 B was in storage for quite a while, and I noticed that the top no longer stretches to the grommets on each side. Do the tops actually shrink over time or did I just miss that when I put the car into storage?

Thanks. I really enjoy learning from the expertise contributed to this site.

Bob Mc.

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Re: Sill Cover Mats / Shrinking Roof #2
mgb77owner James Irland Schertz, TX, USA Sign in to contact 1969 MG MGB GT "Winston" 1980 MG MGB "Daphne" 2016 Chevrolet Corvette "White Lightning"	Nov 25, 2015 08:46 PM Joined 16 years ago 631 Posts

Plastic roofs do tend to shrink after a time. They can be stretched to fit after a time in the sun. You are so far north that you may have to wait until the spring/summer to do this.

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Re: Sill Cover Mats / Shrinking Roof #3
boltonfil phil Waring bolton, lancs, UK Sign in to contact 1972 MG MGB	Nov 26, 2015 01:31 AM Joined 9 years ago 166 Posts

They do shrink if not fastened .... take it indoors and put a fan heater in it for a while then give it a good pull.

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Re: Sill Cover Mats / Shrinking Roof #4
miatadon Don Scott Calistoga, CA, USA Sign in to contact 1965 MG MGB 1980 Triumph TR8 1989 Honda Prelude 1991 Honda Civic & more	Nov 26, 2015 01:51 AM Top Contributor Joined 16 years ago 3,114 Posts

In reply to # 3135121 by boltonfil . . . give it a good pull.

but do it in private.

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Re: Sill Cover Mats / Shrinking Roof #5
Perambulator David D Phoenix, AZ, USA Sign in to contact	Nov 26, 2015 08:46 AM Joined 9 years ago 1,314 Posts

https://leathermagic.com/vinyl-softener/

or one of the many related products.

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Re: Sill Cover Mats / Shrinking Roof #6
rlmccullough Robert McCullough Montpelier, VT, USA Sign in to contact 1963 MG MGB 1966 MG MGB MkI	Topic Creator (OP) Nov 26, 2015 02:47 PM Joined 9 years ago 94 Posts

Good advice on all points. Many thanks.

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Re: Sill Cover Mats / Shrinking Roof #7
rjmc Robert McCoy Somersworth, NH, USA Sign in to contact 1965 MG MGB	Nov 28, 2015 05:22 PM Joined 11 years ago 706 Posts

I use a hair dryer at maximum setting for a shrunk top or tonneau. You can get it real close without doing any damage. Just keep moving it around and stretch while it's hot. It can also eliminate most wrinkles in the window. I've also used the hair dryer for installing rubber seat diaphragms. My stowaway was not installed all summer and I had to resort to the hair dryer again this fall to get it stretched.

I wouldn't use a heat gun however as I feel they are just too hot. Plus the heat is more concentrated.

Bob McCoy
1965 Pull Handle

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