a year ago you fellas were talking about bonding shoes with epoxy has any one done this and has any comments pro or anti??i am finishing up a lightning project that i tried this on.i was curious if anyone has died or scared the hell out of them selves with this method.my insurance co. will be eternally grateful.
When we were at school a friend had a piece of lining come off on his triumph, and lock his front wheel throwing him downhill over the bars, something to avoid. JB weld is good stuff but I'd be inclined to get some new shoes if you can. Then again maybe thats what JohnM had trouble with and riviting as well may be the safest option.
Jaycee, I have used JB Weld to bond brake shoes on three different brake assemblies with no problems. in fact I'll bet you won't find a better glue for this application.As with all epoxy cure it in an oven at about 250* F for about an hour.(after it has set up.) HTH Cheers Dennis B
I don't know much about using JB Weld. Vintage brakes recommends riveting and bonding with Pliobond HT-30 which is available from McMaster Carr cures at 300 F. I used it on my Triumph and I haven't had any problems.
It is vitally important that you get the full material strength data from the makers before you consider using any adheasive on your brakes. Local temperatures can get in the order of 400 deg C and a lot of epoxies get soft at temperatures over 300 deg C.
I have always either got mine bonded at a brake shop ( and they definately were not using a 2 pack glue), or used OEM solid rivets ( quite easy to do actually) or high strength monel pop rivets ( not the ones you get from Walmart) .
I haven't had any problem with the set I bonded using JB a couple years ago (though I haven't ridden the bike in six months). I seriously doubt the adhesive is going to see 400C in a road application unless your shoes are dragging really bad. Maybe right at the lining/drum interface, but if that were the case at the shoe/lining interface, I'm sure that I wouldn't have working brakes anymore.
I still rivet linings for racing, but for roadbikes, I'm on 'da glue now.
A smattering: '53 Gold Flash '67 Royal Star '71 Rickman Metisse '40 Silver Star '37 Rudge Special sixtyseventy Lightboltrocket road racer...and many more.
"(though I haven't ridden the bike in six months). "
Thats exactly the type of use that peels the linings off in my experience.
Storing a bike over winter moisture seems to get in behind the lining and peel it off. My experience of the lining coming off was the rear brake of my 850. I had bought new shoes in a Norton Andover packet about 5 years earlier. Riding in summer storing in the winter seems to allow water to get into it. A friend working at British spares says he has seen this several times.