KB45 front endbell stripped, now what?
 

The screwed on front endbell of my kb45 is loose. When I ran it it just spun on the mount. (not the endbell, that was tight to the motor mount, the whole rest of the can and wires spun) The only thing that stopped it was those darn stiff tinned motor wires, which now looked like braided line.

So now what? The threads are toast, so I can't just loctite it and retighten it.

Jb weld and an overnight dry... You should have enough threads left to get it to start and hold while it dries.

Drill out and tap for M4 - Then use one of mikes end bell covers :) to get you 4 spangly new m3 holes

Will that hold the weight? That's a lot of motor hanging out there.

Not the screws in the endbell, the endbell in the can is stripped. So the threads of the endbell itself and the corresponding threads in the motor can are stripped. (Its a screwed on endbell)

a kb45 sized rcm heatsink/clamp would work

Time for an upgrade?

but I've only used it once! only on 3s! frickin frick:diablo:

Did the threads on the can or the endbell strip? Both?

JB Weld is quite gangsta, if you get it clean, and use the original formula jb, not the quik, it will work well. I have fixed all kinds of stuff with jb, especially for high heat it is about the best stuff out there.

Got some in me toolbox(fishing tackle box) I will try it. If it comes loose again that bee-yatch is getting tig welded

2 part epoxy also works well :)

Make sure it is high heat... JB is one of the few easy to find high temp epoxies...

I had a kd 9xl That the can was stipped on, you could pretty easily keep turning the endbell, jb weld did the trick on it

That makes me feel better. Is JB Weld the new duct tape?:neutral:

JB is the permanent version of duct tape...

see harold, your jb weld could be done setting by now ;)

I can a test to that. At my old job we fixed a cracked block on a M5 with it, just to get the car mobile so the customer could use his car. When the new engine came in we were surprised that the JB was still holding with no leaks.

well, the jb is curing as I type this. If it holds the weight of that big kb after being propelled on 6s and cartwheeling I am going to buy stock in the jb weld company. (Justice Brothers, they make swell chemicals)

i think there needs to be a heatsink/clamp for the KB motors. the feigao sized ones are great at keeping the feigaos from falling apart. the better cooling is just a bonus. if there was one for the KB45-xl motors, i'd buy 1.

Me too, but Mike said that there was no plans for one any time soon. I'm sure he would do a custom order, but it wouldn't be cheap.

Yeah, I can imagine a custom one-off clamp for a different diameter motor would be prohibitively expensive. $60 for the motor, $200 for the heatsink - and you still don't have a Neu despite paying the price of one.

I wouldn't think it would be that expensive, but more expensive than a Medusa and one of Mikes clamps for them.

hopefully it will hold. If not, I'll jerry rig a clamp from front to back with some all-thread and, oh, I don't know, chewing gum?

maybe someone can ask make if he can start making and selling heatsink/clamps for the KB motors. the design could be the same as the feigao sized one but bigger.

I did...Thats why I said:

I can also attest to the power of JBweld. I had two motors with separated rotors, a hv4400 novak and a 1200xl basic lehner (different times but same problem). neither had split, so i JB welded them and they held as long as i had run them. I still run the 1200xl to this day without problems, on 5s lipo. I used the standard JB weld , not the quickweld and the standard will hold to 600* if heat

The std jb is much better than the kwik.

You do need to let it cure for 24hrs or so, but it is near indestructible then...

Thanks linc, I forgot about the 24hour waiting period

Well, this will be an ultimate test for jb weld. The threads were toast, so after applying the jb weld instead of screwing the endbell back on, I just "popped" it baack in with a hammer blow. Thats a 2 pound motor hanging on with nothing but an adhesive! I plan on cartwheeling at about 60mph, so we'll see........