• Hi Guest! Being a Paying Supporter is NOT a requirement to participate at BCF. However, subscribing will help ensure we can continue to serve the LBC community for years to come. If you enjoy BCF and find our forum a useful resource...Please consider supporting us by **Upgrading**
    (PS: Subscribers don't see this banner)
Tips
Tips

Floor pan replacement

bugedd

Jedi Knight
Country flag
Offline
I had an expert on the restoration of British cars look at my shell and tell me a bit about floor pan replacement, as mine should be done. Is there a tutorial, video, or something out there to help walk a rookie thru this processs? I assume the pans from Moss are a good replacement part.
 

Rut

Obi Wan
Silver
Country flag
Offline
I used Moss floor pans and they fit ok, but the pre punched holes don't line up. That said, if both pans need to be replaced like mine I would go with the one piece floor. There will be some fitting required, but it saves you a lot of welding!
Rut
 
OP
bugedd

bugedd

Jedi Knight
Country flag
Offline
Both pans should be replaced to do things right. Looks like a ton of work
 

Rut

Obi Wan
Silver
Country flag
Offline
It's time consuming, but not difficult work...the biggest pita is drilling out the spot welds. I used the Peter Plouf method of self tapping screws to put everything together and I'm very pleased. Invest in a really good spot weld drill, cutting fluid, slow speed drill, and plenty of beer! An angle grinder is a must have as well.
Rut
 

Attachments

  • image.jpg
    image.jpg
    194.2 KB · Views: 49
  • image.jpg
    image.jpg
    193.3 KB · Views: 45
  • image.jpg
    image.jpg
    192.1 KB · Views: 48

Rut

Obi Wan
Silver
Country flag
Offline
I bought one of those and it left a cut out that had to be ground off...too much trouble. I picked up 4 5/16" Ti tipped drill bits at Atlas welding today for about $2.25 ea and they really do a good job, much better and cheaper than the ones I get at Lowes or HD. Don't know about local welding shops in your area, but they know their stuff.
Rut
 
OP
bugedd

bugedd

Jedi Knight
Country flag
Offline
cutting the pans out without some sort of support on the rest of the car would be a bad idea, I'd imagine, as the car could twist?? Maybe do one side at a time?
 

Rut

Obi Wan
Silver
Country flag
Offline
I used a piece of 1" emt conduit flattened on each end, bent and screwed to the upper door hinge and door lock plate for a brace. The car has been on a rotisserie for a couple of years and NONE of the measurements have changed at all. These are **** sturdy cars and as long as the sills are good you shouldn't have a problem.
Rut
 

Attachments

  • image.jpg
    image.jpg
    176.4 KB · Views: 24

Hot Wings

Senior Member
Offline
I bought one of those and it left a cut out that had to be ground off...too much trouble.

If you are planing on resistance spot welding the new panels in place these cutters are about the only option. A good center punch helps to keep them from wandering.

When thru-hole welding is the only practical option I like to use smaller holes than needed to remove the original spot weld with a conventional drill. This lets me match the original spot weld diameter with the MIG. Having a panel without holes also lets me punch/drill the holes in a nice straight line rather than having to follow the original.

No, I'm not OCD. I'm CDO - got to keep the letters alphabetical. :friendly_wink:
 

Rut

Obi Wan
Silver
Country flag
Offline

Rut

Obi Wan
Silver
Country flag
Offline
I'm trying to justify it for future projects! I've been pleased with the drill bits I've used, but it just takes so long to do all of them. I'm seriously considering a Harbor Freight 110 volt spot welder for those places it can fit.
Rut
 

Hot Wings

Senior Member
Offline
I'm seriously considering a Harbor Freight 110 volt spot welder for those places it can fit.
Rut

I've not used the HF welder but it looks identical to the one I bought many years ago. There is a small learning curve and the metal needs to be clean on all the surfaces being welded and well clamped, but the result is fast and neat. With a bit of imagination and some heavy welding cable you can use the power head and make some custom jaws to reach odd spots.
 
Similar threads
Thread starter Title Forum Replies Date
B TR4/4A Floor pan replacement Triumph 4
H trunk floor pan replacement 1964 BJ8 Austin Healey 2
Z TR4/4A Floor pan replacement Triumph 18
T Anyone used Moss front floor pan replacement panel Spridgets 2
Stewart floor pan replacement MG 34
jjbunn Floor Pan Replacement Cost Triumph 10
HAN8L1965 Replacement Floor Pan Spridgets 1
bcbennett Floor pan replacement Triumph 4
svtmikey GT6 Floor Pan replacement [GT6] any helpful hints Triumph 1
C Floor Pan Replacement by Novice MG 2
aeronca65t Sill and Floor pan replacement MG 3
F TR2/3/3A Floor pan question Triumph 16
B Rear shroud connection to the floor pan on a BJ7 Austin Healey 21
T For Sale Triumph TR6 pass floor pan Triumph Classifieds 0
71TR6 TR2/3/3A TR3 floor pan to firewall question Triumph 2
71TR6 TR2/3/3A Inner sill or floor pan- which to replace first? Triumph 5
S TR4/4A Floor pan mountings Triumph 8
John_Mc TR6 Floor pan to frame mount question/Miata seats Triumph 2
C TR2/3/3A Floor Pan Crack Triumph 5
S TR2/3/3A On installing the floor pan Triumph 4
A TR2/3/3A Floor pan measurement Triumph 1
M needed rt. ft. be floor pan Spridgets 1
Psevins TR2/3/3A TR3 Floor pan Triumph 22
P Interior - right floor pan Triumph 8
M Do you REALLY need drain holes in the floor pan? Spridgets 3
B Holes for sets in BJ7 floor pan Austin Healey 2
Jim_Newman BN1 floor pan Austin Healey 6
W Floor pan comparison Spridgets 7
S TR2/3/3A Tr3 floor pan removal Triumph 5
T What do you guys use to cut floor pan sheet metal? Triumph 7
T TR4/4A TR4A floor pan removal - easy or hard? Triumph 7
chicken Floor pan insulation panel Austin Healey 7
T Should floor pan be replaced? MG 15
F TR6 Rust and small hole on floor pan- TR6 Triumph 6
H MGB MGB floor pan question MG 4
A Rocker panel or floor pan first Triumph 1
Healey Nut Insulating Floor Covering Austin Healey 7
B A plan to replace BE floor pans Spridgets 0
J TR2/3/3A Any advice for new floor install on my TR3? Triumph 9
J TR2/3/3A Pads under new floor Triumph 7
F TR2/3/3A Boot floor Triumph 50
K TR2/3/3A Headlight Hi beam floor button fail? Triumph 5
A TR2/3/3A Brakes, exhaust and trunk floor Triumph 2
E BJ8 Seats, Exhaust Hanger, Heat Shield Locations in Floor Austin Healey 7
J TR2/3/3A Painting floor pans Triumph 2
R TR2/3/3A Trunk floor replacment Triumph 4
R TR2/3/3A Boot/trunk floor Triumph 5
J front cross member height from bottom to floor on BJ8 Austin Healey 5
Rob Glasgow Garage Floor Coatings Restoration & Tools 1
NutmegCT Garage floor Restoration & Tools 19

Similar threads

Top