MG TD TF 1500 Captive Nuts on RHD Pedal Box Top BBS discussion at MG-Cars.net

MG TD TF 1500 - Captive Nuts on RHD Pedal Box Top

I honestly don't know RW, but I'm keen to find out. CC's site has great info an almost all of the fixings on the TD but the toe board is a bit of an unknown. The captive nuts are shown in this pic Dave with machine screws fitted to both. This comes from Chris T in QLD who I believe owns a TF but the pedal box detail should be the same as on a TD. For some weird reason the image when attached is shown upside down, even though it's correct in my gallery. I'm really interested also in identifying all of the fixings to the toe board. I'm OK with those on the perimeter and the "D " nuts for the gearbox cover, but everything else is a bit of a mystery including the location and quantity of "D" nuts across the bottom. Mine was made almost 50 years ago using the original as a template but the sheet metal worker then tossed out the original and I was too young and stupid to realize its value. Cheers Peter TD 5801

P Hehir

Peter - The top side of the pedal box in my LHD TF is a mirror image of your RHD pedal box. The welded nut toward the rear is used to secure a rubber pad between the floorboard and the pedal box. Moss item #280-430 UK and USA. https://www.moss-europe.co.uk/pad-floorboard-to-pedal-box-280-430.html The floorboard is not secured through this welded nut. The welded nut toward the front is used secure (top to bottom) the floorboard, the gearbox cover, and the rubber pad. Lonnie TF7211 "Mirror image twins"

LM Cook

Thanks Lonnie and Rob. I thought at least one of them had to involve the floor. I have some other pics in my gallery taken in that area from BBS members, some of whom weren't identified. This one is from Matthew and shows one of the "D" nuts at the bottom of the toe board on his RHD TD and another strange fixing. This seems to be on the underside of the passenger floorboard. Cheers Peter TD 5801

P Hehir

Not sure who owns this LHD TD but it does show the area pretty clearly, including what looks like the top of the odd fixing in Matthew's pic above. The fixing to the left of the rubber boot plate is obviously a "D" nut. Could the partially obscured fixing at the RH rear of the boot plate be the second "D" nut on that side? This could then be the one shown from below in Matthew's pic? Cheers Peter TD 5801

P Hehir

I think this one may belong to Bud and shows the rubber that Lonnie and Rob were referring to. The proximity of the rear screw to the inboard toe board "D" nut is confusing though. Cheers Peter TD 5801

P Hehir

Peter, I'm glad that you posted the question. One of the D-nuts on the driver's side of my LHD TF toe board is broken off. I didn't know until I looked at my toe board to answer your question. I believe that the odd "fixing" to which you refer is a rectangular T-Nut that secures the gearbox cover to the floorboard. I am attaching two photos in two posts. The first shows my LHD TF floorboards; the second shows my toe board with arrows to the D-nuts. This photo shows rectangular T-nuts in the underside of my LHD TF floorboards. Orientation: The top and bottom of the photo are the "gearbox side" of the floorboards. The center is the "outside" of the floorboards. There should be a hole near the front-inside corner of my driver's floorboard for a screw into a D-nut in the toe board because part of the toe board that would hold a D-nut is broken off. This is probably the screw/D-nut in your photo. (I need to update my floorboard fastener diagram to include this hole and fastener.) The hole at the front-inside of my passenger floorboard and toe board takes a screw and nut because the D-nut is missing from the toe board. This will make more sense when you see the photo of my toe board in the next post. Lonnie TF7211

LM Cook

This is a photo of the engine-side of the toe board in my LHD TF, so the driver's side is on the right. Red arrows show the D-nuts. Missing D-nuts are noted. Lonnie TF7211

LM Cook

Thanks Lonnie. This confirms 8 "D" nuts in total, four on the bottom flat section of the toe board - two on each side - and four on the semi circle for the gearbox cover. Your pic shows 3 rectangular "T" nuts on the floorboards, two on one and one on the other. Yours appear to be quite new. If so where did you get them? I wonder if there are also supposed to be 3 on the RHD TD? Can anyone confirm? On re-reading this thread I see I incorrectly described the two nuts on top of the pedal box as captives. They are as you described, welded. All of these nuts and their machine screws are 1/4" BSF. I'll search the archive for details of the original fixings for the pedal rubber plate, probably some sort of slot headed screws on early TD's. On RHD floorboards the sliding cover to access the master cylinder is secured with two circular "T" nuts. These are 2 BA and can be seen in situ on this pic of an original RHD floorboard. I have a clearer idea now of this area though there are still some unanswered toe board questions. Cheers Peter TD 5801

P Hehir

This pic shows a 2 BA machine screw in the original "T" nut. Cheers Peter TD 5801

P Hehir

Peter Put my Christmas tree up yesterday and thought you might like to see it Cheers willy

William Revit

These are pretty close to original, except for thread size. Not as thick as weld nuts. A bag of 250 is enough for over 30 cars - floorboards and side curtain box. 1/4-20 Thread Size 1.25" Flange Length 0.5" Flange Width 0.3125" Barrel Height 0.170 Hole Diameter 0.047" Material Thickness https://www.displayinnovations.com/product/T-NUT250-20-250/T-Nut-14-20-bag-of-250/ Lonnie TF7211

LM Cook

This thread was discussed between 01/12/2018 and 04/12/2018

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