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MG TD TF 1500 - Tub to frame mounting

When attempting to mount the gas tank on a TF1500 after a frame off restoration, it appears that the tub is setting about a 1/4" too low (the upper strap mounts touch the tank when the take is set in place). New lower rubber tank pads have been installed. When viewing pictures of unrestored TF1500's, there appears to be a pad or shim between the tub and frame at the rear tub mounting points. Does anybody have some knowledge of these pads/shims (size, thickness, material, etc.)?
H. C. Griess

Two big, thick rubber pads. Moss 'TF Rubber' No. 21. Page 42 of catalog MGT-143. Bud
Bud Krueger

Do you mean the chrome things ? Post a picture? Bud, those are the tank mount pads I think, not tub mount pads. To raise the rear tub to chassis mount area by shimming, you change the door hinge pillar angle and mess up the fit of the doors. Is the car painted yet? George
George Butz

Where did all the pictures of Lens ORIGINAL TF end up???
Steve Wincze

Found them,,,,
go to this site and you might find what you are looking for,,

http://www.mg-cars.org.uk/mgtf/Pictures/TF9052/Thumbnails/mgtf_tf9052.htm
you might find something there

steve
Steve Wincze

Item #54 Moss pt #281-798. 4 rubber set, tank back and bottom.




Paul161

Here is picture showing the point in question
H. C. Griess

Make your own from used rubber conveyor belt. Places that splice belts will give you an off cut for gratis.
G Evans

"there appears to be a pad or shim between the tub and frame at the rear tub mounting points. Does anybody have some knowledge of these pads/shims (size, thickness, material, etc.)?" Photo of original TD frame to tub shim/pad. I really enlarged and it looks like cork to me. George








George Butz



George's picture is pretty much the same as mine.

There are two pieces of cork approximately 2 inches square and around 1/16' thickness under each mounting point.

TF 7946
XPEG 1749

Dan


Dan Nordstrom

Another




Dan Nordstrom

Do you have the tank support brackets moss part no 449-600 (under TF chassis in the moss catalogue no 70).
also the rubber pads to go on the support bracket( part of the pad set 281-798).These will bring the tank back away from the body.If mine did not have these, my tank would also hit the upper strap mounts.
Best of luck.
Cheers.
Ralph TF 9181
R E J Stewart

I purchased the Moss 281-798 tank rubber set about a year ago, The supplied rubber pads for under the tank were not usable. The pads were too thick and the rubber was hard as a rock, absolutely no compression or deflection. When I attempted to mount the tank, it would not seat over the hard rubber making the top of the tank to sit too high. The pads for the tank back supports were ok. Fortunately I had some rubber that could be cut to size which worked well.
Regards, John
JR Mahone

As far as tub to chassis shims, I made new ones out of .060 vinyl material and used from one up to five at various points to get the tub level and the doors to work properly. The shims can be hidden and no one is the wiser. Actually, if the original material was available, I wouldn't use it anyway. As far as the Moss tank rubbers are concerned, all four of mine fit perfectly, TDs might be a little different, I don't know. PJ
Paul161

I used 1/8 inch thick rubber printing blankets. I did end up shaving down the rubber pads under the bottom of the fuel tank.

Pictures from my website.

Warmly,
dave


Dave Braun

Here is a pic of grinding down the rubber pads for the fuel tank.

Caption from the photo on my website: "In order to lower the fuel tank slightly in the pads, we used a grinder with 80 grit disk to remove about an eighth inch from the pads. Rubber sprayed everywhere, but blew right off with compressed air."


Dave Braun

These body tub pads are mandatory and are not just for raising the height or for even reducing squeaks or rattles. They are an integral part of the car's design and are also used to fit the body and doors properly.

Search the forum archives for more information on these pads and how to use them. Follow the link below for a quick overview of how they are used to fit the door openings.

Also note that the originals were a very heavy cardboard/fiberboard like material that would not compress much. Most rubber will not work and don't use metal shims. And you will have to have various thicknesses or stack a few thinner ones to achieve the correct thicknesses as you work on the door openings.

See Fitting the Doors

http://www.mg-cars.org.uk/mgtd/mgtd_tips.htm

Christopher Couper

Chris when you say most rubber won't work can you or anybody recommend a type that does? I've set the door openings using non compressible plastic construction shims of varying thickness at the three securing points. I've hung the doors & have completed the door & tub repairs at the A & B pillars & the doors now snug up to the body nicely. (Only 3 short 4 hour periods over 3 days so far this year where the humidity was below 30%. So I'm STILL waiting to top coat the doors & tub with acrylic lacquer! And we're now into Autumn). I'd prefer to replace the plastic shims with what seems a suitable, very dense & durable rubber which I've purchased from Clark Rubber here in Oz. I have various pieces of the correct thickness but couldn't tell you what the composition is. Cheers
Peter TD 5801
P Hehir

I use a 5/16" neoprene fender washer at each mount location, and use 5/16" steel fender washers for shims. The gap varies from 1/4" to almost 1/2" at each mounting location.
David
D. Sander

I used a very dense rubber too in 1970 and it's still holding up but I don't know what it was and I have not seen anything like it again.

Of course one could also replace it with the original padding (fiberboard).

Just make sure it is so dense it won't compress over time because that will change your door openings and alignment of panels etc.
Christopher Couper

Thanks Chris. The rubber I have would be more durable & much less compressible than the original fibreboard so I'll go with that. Cheers
Peter TD 5801
P Hehir

When I did my "frame off" 20 years ago, I replaced the original tub pads with pieces of an old Michelin tire. They are still in place and have not notably deteriorated. It is good stuff.

George
George Raham

Thank you all for your wealth of information. I haven't had a chance to get back here for a week or so and i am overwhelmed by the response!
Cheers to all.
Herb...


H. C. Griess

Nice car Herb. Cheers
Peter TD 5801
P Hehir

When I did my TD I used vinyl flooring material. 1/8" -1/4" at the six mounting points was all it took to get my doors adjusted.
I guess I was lucky.

Bill Chasser
TD 4834
W. A. Chasser Jr

This thread was discussed between 09/03/2016 and 17/03/2016

MG TD TF 1500 index

This thread is from the archive. The Live MG TD TF 1500 BBS is active now.