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MG TD TF 1500 - Floorboard/prop shaft supports

Gentlemen
On AS page 63 items 51/51a the floorboard supports are shown. The floorboards are connected to these using bolts that go into nurs pre welded onto the support flanges.The front of these supports are fastened to the gearbox also by bolts into preweldeded nuts. Now for my problem , these supports fit over the flanges that rise from the frame cross member. These flanges have 3 holes (appear to be 7/16") in each that coincide with 3 holes on the floorboard supports that do not have welded nuts on them. My question is are these simply fastened together using nuts and bolts? If so why 3 in close proximity ? Or does something else also attach to any of these 3 holes?
I ask in that this area was disassembled in my car when I got it so I have no reference on correct method of assembly and WSM or any other material that I have shows this!
Many thanks for the help and best regards:
Rod M. 54 TF
Rodney G Murray

This is from the TD but I think the TF is essentially the same. I can't remember for certain but I thought there was one captive nut but if not it's no big deal. You only use one of the holes to fasten down the floorboard rails. A machine screw (should be an indented hole on the rail), goes through the rail which sits on top of the three hole bracket. It either sets into a captive nut or if there is none there, just put in a lock washer along with a nut to secure the rail on each side. See picture which is not great but good enough to show this feature.


Christopher Couper

Rod -

Forum members: Please don't shoot me ... this post may set a new record for length. Hope that it explains your floorboard supports and the floorboard installation process.

I have a diagram of fastener locations for TF (TD) floorboards on my Google Drive. Click the link below. Then click on the "download" icon near the top center of the screen to download to your computer. (A downward pointing arrow with a bar across the tip.)
https://drive.google.com/file/d/0BxisXBEpc-IWa25XaHc4akNPd28/view?usp=sharing

The file includes the size of each fastener and washer. Aftermarket sources are listed. There are a couple of errors which I will address at the end of this post.

To answer your question about the floorboard supports: All of the machine screws that attach the floorboard supports go into threaded holes or nuts welded to the gearbox bracket or to the rear support tabs. None are held by separate nuts and bolts.

Here is the order in which the supports, tunnel, floorboards, and hump are installed. The fastener size and washer for each location is on the list of "Floorboard Fasteners."

A) Attach the gearbox rear mount support bracket to the cross member.
M2L
M2R

B) Attach the floorboard supports to the gearbox support bracket and to the mounting tabs on the crossmember at the rear of the cockpit. NOTE: 7L &7R are 3/8" long and go through a chamfered hole in the floorboard supports and secured into the middle hole of the support bracket on the rear cross member.
The rear most hole and welded nut in each floorboard support is not needed. Leave it empty.
M1L
M1R
7L
7R
8L
8R

C) Set the propshaft tunnel onto the floorboard supports. Optionally pad with felt, rubber, roofing felt, etc.

D) Place the floorboards into the cockpit and on top of the propshaft tunnel. Optionally pad and level the floorboards with felt, rubber, roofing felt where needed.

E-a) Install floorboard fasteners through floorboards into D-nuts in the toeboard. Some will not be accessible after the gearbox hump is installed.
2L
2R
3L
3R

E-b) Attach floorboard fasteners through floorboards, through propshaft tunnel, and into floorboard supports. Attach propshaft tunnel to heelboard.
6L
6R
9L
9R
10L
10R
4L
4R
5L
5R
H1
H2
H3

F) Set the gearbox hump in place on top of the floorboards and on top of the front edge of the propshaft tunnel.

G) Attach floorboard fasteners through gearbox hump, through floorboards. The fasteners will secure into either the floorboard supports, T-nuts in underside of the floorboards, or D-nuts in the toeboard. Also attach four floorboard fasteners through the gearbox hump into the toeboard at the crown of the hump.
1L
1R
13L
13R
12L
12R
11L (Through gearbox hump, floorboard, propshaft tunnel)
11R (Through gearbox hump, floorboard, propshaft tunnel)
T1
T2
T3
T4

H) Screw the outer edge of each floorboard to the wood outer frame with four wood screws.

I) Install carpet.
http://www.mg-cars.org.uk/mgtd/mgtd_carpet.htm

J) Attach the handbrake to the propshaft tunnel through the carpet.
E1
E2

K) Set the seats in place (mgtf) and attach with a fastener though each front hinge and through under-seat carpet into the T-nut under the floorboard.
S1L
S2L
S1L
S2R
Optionally screw the rear of the seat runner to the floor with a wood screw.

===========

Error in the diagram and parts list:
8L
8R
Do not use floorboard washer under 8L and 8R. The floorboard are routed 1/4" deep to clear the hex heads. Flat washers or split washers may cause the hex head to sit too high. Investigate.

>> Please double-check my info. I wrote it off the top of my head.

I will update the diagram and list to better portray the order in which the pieces are installed. (someday)

Lonnie
TF7211
LM Cook

Forgot to delete the "S" in the link to Google Drive.

Use this link:
http://drive.google.com/file/d/0BxisXBEpc-IWa25XaHc4akNPd28/view?usp=sharing

Lonnie
TF7211
LM Cook

Lonnie great info.

Thanks
Tim
TD12524
TW Burchfield

Don't know if you want this floor support bracket, but I measured one off my TF for a fellow many moons ago. Here's a pic. PJ



Paul161

Thank you for your responses :) I do have everything to restore to original condition and now have the info needed to do that!
Lonnie.... Wow:)
Rod M 54 TF
Rodney G Murray

This thread was discussed between 27/05/2016 and 28/05/2016

MG TD TF 1500 index

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