• 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

MGC Cut out the Rust!

69MGC

Jedi Trainee
Silver
Country flag
Offline
So the saga of the rust rotted wheel wells continues with some great progress.

First let me say that I haven't worked on the car for several weeks. Who am I kidding, months! But once I got back into the swing of it and I see some progress I am getting more excited to get the C back on the road.

I've been working on cutting out the rusted wheel well section that you've already seen and then replacing with a fabricated patch panel. Since I don't have a welder nor do I wish to purchase one and learn to weld I decided that since the section that needs replacing isn't a structural part I could use JB Weld epoxy adhesive to glue the panel in place.

If they can glue parts of a 747 together using epoxy surely my C wheel well panel will stay together.

When you look at the pictures of my progress keep in mind that I'm working with a very limited budget and a standard set of hand tools, wrenches, clippers, grinders, etc. etc.

Welding the patch panel in place may be the ideal way to fix the rust issue, but don't judge until you see the outcome. If I offend any professional body and fender guys with my weld-less panel fix I apologize and I invite you to come on down and show me the right way to do it. At your expense of course. LOL.

Wheelwell_Rocker_IMG_0297-2.jpgWheelwellCutoutRot_IMG_0303-6.jpgPatchSupport_IMG_0306-7.jpgFabricatedPatch_IMG_0311-8.jpg
 

Attachments

  • Wheelwell_Repair_IMG_0295-1.jpg
    Wheelwell_Repair_IMG_0295-1.jpg
    47.3 KB · Views: 52

JPSmit

Moderator
Staff member
Silver
Country flag
Offline
quite a job! I for one am very interested in the adhesive - we have discussed it regularly but have not had conclusive evidence! Keep us posted
 

number6

Jedi Trainee
Offline
i don't see any problem using JB weld, but the use of a few pop rivets is also a very good thing. I did patch a small section of my C's floor, about an inch square. Didn't use any epoxy but I did dip the rivets with waxoyl, to prevent dissimilar metal corrosion. Nice job.
 
OP
69MGC

69MGC

Jedi Trainee
Silver
Country flag
Offline
quite a job! I for one am very interested in the adhesive - we have discussed it regularly but have not had conclusive evidence! Keep us posted

If JB Weld is as good as the claims there shouldn't be any problems with the holding strength. As I stated, since this section of the wheel well isn't structural it should hold up as planned.
 
OP
69MGC

69MGC

Jedi Trainee
Silver
Country flag
Offline
i don't see any problem using JB weld, but the use of a few pop rivets is also a very good thing. I did patch a small section of my C's floor, about an inch square. Didn't use any epoxy but I did dip the rivets with waxoyl, to prevent dissimilar metal corrosion. Nice job.

Thanks for the vote of confidence. I'll let you know if the patch fails in the next 10 years or so. The car won't see any rain or hard driving so it should last for as long as I'm around.
 

Rut

Obi Wan
Gold
Country flag
Offline

DrEntropy

Great Pumpkin
Gold
Country flag
Offline
We've used adhesives to fix rotted out floor pans and patch panels. Autobody paint & supply stores have "systems" with the right epoxy. I was a skeptic until I got to do hands-on tests of the stuff. Glued up some pieces of both steel and aluminum sheet and tried to disconnect them with hammer and vise, twisted and tortured the test pieces well. The epoxy held well beyond anything "real world conditions" would do... Now our MGB has been rebuilt using it. Going on ten years ago and it still looks fine, no issues. Used SEM 39747, "Multi-purpose panel adhesive".
 
OP
69MGC

69MGC

Jedi Trainee
Silver
Country flag
Offline
We've used adhesives to fix rotted out floor pans and patch panels. Autobody paint & supply stores have "systems" with the right epoxy. I was a skeptic until I got to do hands-on tests of the stuff. Glued up some pieces of both steel and aluminum sheet and tried to disconnect them with hammer and vise, twisted and tortured the test pieces well. The epoxy held well beyond anything "real world conditions" would do... Now our MGB has been rebuilt using it. Going on ten years ago and it still looks fine, no issues. Used SEM 39747, "Multi-purpose panel adhesive".

Thanks for the input Dr. Most guys say the only way to go is MIG weld, but I didn't have the where with all to buy a MIG unit just for some small non-support panel rust through. I can see the need if the panel is really gone, but for the small areas I have I didn't see any need.

I've always wanted to learn to weld, so maybe some day I will invest in a MIG Welder.

Good to know you have real world experience with epoxy use.

Kev
 

Joe Schlosser

Jedi Warrior
Silver
Country flag
Offline
Having worked many years ago gluing aircraft together I will add my 2 cents. The key to this process is cleanliness. Anything that is being bonded using an adhesive must have be as clean as you can possibly get the pieces. For aircraft we used all sorts of nasty solvents to make sure that every last particle of dirt/grease/oil was removed and after that only handled the parts with cotton cloves. Also the two pieces must be as close together as possible, no air gaps.
When we tested the parts we were interested to make sure that the adhesive failed internally not between the adhesive and the part.
In the last 40 years the quality of the adhesives have improved significantly and they are more forgiving but the same rules for cleanliness still apply
 

DrEntropy

Great Pumpkin
Gold
Country flag
Offline
:iagree: I tried lacquer thinner, acetone and denatured alcohol as solvents to clean the bonding surfaces of the test pieces. Didn't seem to matter which to the epoxy. Used acetone on the surfaces of the MG, figuring it was the highest evap rate of the bunch.
 
Similar threads
Thread starter Title Forum Replies Date
G Inertia Cut-Off Switch - E-Fuel Pump to Ignition [Key] Switch Austin Healey 3
Rut Cut down windshield Spridgets 22
BN6 BJ8 Outrigger Cut Out For Exhaust Austin Healey 3
G General Tech Have new blank key for TR3 but cannot get it "cut" to fit ignition. Triumph 14
KVH TR4/4A Should I Cut the Lower Windshield Gasket Triumph 2
D You Tube made me do it. I bought a Milwaukee dry cut saw. Restoration & Tools 6
Drone Dog cut-off switch Austin Healey 20
W TR2/3/3A Why a PO cut these holes in rear floor? Also, question re dealing with captive nuts Triumph 6
K TR2/3/3A A cut down side curtain for Fall driving? Triumph 7
CJD TR2/3/3A Cut away TR3 Triumph 6
Boink Moss Healey Cut-out... I'll ask... Austin Healey 2
Boink Cut-away B series engine... MG 6
TLW1958 TR6 1972 TR6 No ignition cut off Triumph 2
BobMunch MGB The MGB Cut-away, Heritage Motor Centre Museum MG 11
J Windshield question pt.2: Why not cut the frame? Spridgets 9
Boink Battery cut-off switch options... or??? Spridgets 10
K TR2/3/3A TR3 Cut Off Side Curtain. Triumph 18
D battery cut off switch Austin Healey 29
T TR4/4A TR4a positive earth to negative cut over? Triumph 9
Tinkerman Battery cut-off switch installation Triumph 22
AUSMHLY fuel cut off Austin Healey 23
vping T-Series Adding a battery cut off switch. MG 16
G To cut or not to cut Austin Healey 3
V Intermittent engine cut out 1989 v12 xjs Jaguar 9
Ouagabambou Cut, torn steering inner tube [+ photograph] Austin Healey 22
T TR6 What year TR6 cut over to Type-J O/D? Triumph 3
roofman Looks like Dale made the cut! Triumph 13
B T-Series cut off switch in MGB? MG 7
T What year cut-over to the 1500? Spridgets 13
jmwuva05 Fuel pump cut off switch Spridgets 6
R Cut off switch wire Austin Healey 2
jlaird First cut on trophies for Lake of the Ozarks Spridgets 32
beaulieu fixing a cut in half Temperature capillary gauge Restoration & Tools 13
G Cut body in half? Triumph 20
J TR6 Inertia cut out [off] switch TR6 Triumph 9
TR6oldtimer Fuzzy door seals to cut or not, buy new or keep Triumph 12
T What do you guys use to cut floor pan sheet metal? Triumph 7
T Wedge Cut wire on TR8 Ballast Resister Triumph 2
tahoe healey fuel pump cut off switch post Austin Healey 21
T Cut/Splice Spark Plug Wires?? Triumph 13
S Battary cut off switch Austin Healey 1
R6MGS T-Series Late MGB fuel cut off switch MG 5
A dash light cut off switch Austin Healey 9
jlaird Bat, cut off switch Spridgets 7
S TR2/3/3A TR3 Turn Signal Auto Cut-Off Triumph 5
John Loftus BJ7-BJ8 windshield seal cut Austin Healey 6
G Fuel cut-off valve MG 5
A Battery cut off switch Austin Healey 15
KiwiStagguy Re building my power steering 71 Stag . Rust and pitting bad . Need a business name to fix it Triumph Classifieds 0
R Rust in Block? Help needed! Austin Healey 6

Similar threads

Top