Electric Motor - glueing one of the magnets back on

[Grega]

OK, so I've got an electric motor (that operates the popup lights on my VL Calais)

The motor had siezed/wasn't working, all looks OK inside, except, the reason for it siezing, is because one of the magnets that is glued to the side of the motor casing, has come loose.

This appears to be a common problem with them.

The question I have, is what adhesive should I use to glue it back to the case? I was going to get the wire wheel in there to clean it up, then, clean up with thinners then use some KWIK GRIP on both the magnet side and the casing side, let it cure, then clamp em together.

Any thoughts? Any electric motor repairers out there that might be able to advise me?

[oldcorollas]

quick grip might work... if you can get enough of the glue actually touching..

since time is not an issue, you could properly epoxy it?

[Grega]

yes stu could definately epoxy it
what sorta epoxy though and where from? radio parts or jaycar maybe?

[oldcorollas]

strong stuff
not sure actually.. high strength epoxy suitable for metal would be a good start..

[af300e]

"JB weld" epoxy is excellent.

[river]

Hi,

Or Araldite. Get the 5minute Araldite. It's strong and quick setting. Even then, wait 48hrs before putting it in the car for normal use.

seeyuzz
river

[TERRA Operative]

If you can wait the extra time, 24 hour Araldite is stronger.
Although for a magnet, you probably don't need the extra strength.

If you're in a hurry, there is also 90 second Araldite, but you had better be quick. 90 seconds doesn't last long and things glued with Araldite don't move easily. (Ask me how I know....)

[Grega]

interesting one.
i initally though araldite, but, araldite can flex a bit when dry (not malleable) but you know what i mean
is the 24hr araldite stronger/less flexy?
i reckon jb weld might be FTW.

[hemi twofifteen turbo]

The flex won't be an issue, use the 24 hour stuff if you have it. I've had the same problem with an elec motor before and it fixed it no prob. Just try and scuff the surfaces as best you can and clamp it well as the neighbouring magnets will be wanting to pull it in funny ways.

[Grega]

yeah. will get the wire wheel in there mate.

tks for the feedback

[Z2TT]

I had the same problem with the power window motor on my Toyota Soarer.
I used araldite glue, let it set for 24 hours. I suggest you use the strong araldite glue, worked perfectly here.

Be sure to remove any old glue residue and smoothen the surface up.

[oldcorollas]

roughen the surface?

[Grega]

will get the wire wheel in there mate.

that should roughen it up enough to give it something to adhere to.

[Z2TT]

Ah I meant to smoothen it up as in remove some of the old residue, but not smoothen it too fine.

[Grega]

OK
reporting in
i got myself some araldite, and, mixed it up
after using a file to clean the inside of the housing, i cleaned it thoroughly with thinner
applied araldite, and, left overnight

re-assembled this morning i put the motor shaft in and aligned the brushes, then, slid the casing over the top - HINT - those of you who have brushes in the way - use some 100mph to hold the brush back then slide it out when you're good to go.

after re-assembly - motor still turns. this was a better result than previous and expected.

+12v and -12v and we have one (1) working motor. FTMFW.

thankyou all for your help and advice.