? 145 Bass rotor, slow motor, how to reattach fan?

[jbreher]

So, as you can surmise from several recent threads I have started, my refurb of a 122RV has spilled over to my 145 as well. Today's noob saga involves the 145's* bass rotor's slow motor.

So when I did the 122RV's bass rotor slow motor, the stamped & formed sheet metal fan seemed to be permanently affixed to the armature. On this 145 motor, however, the fan fell off as a result of mild cleaning. Please see pic:



So, my question is: what to do about this sad state of affairs? Should it indeed be permanently attached? Can I just affix it in place with epoxy, JB Weld, or other? What should be used?

*Note that in another thread, I divulge the suspicion that this motor _used_to_be_ in the 122RV, due to the shroud over the slow motor. I think they may have been swapped three or four decades ago, during a previous clean'n'lube or somesuch.

[muckelroy]

I've never seen the fan separated from the armature. It needs to be attached to the armature. Your guess is as good as mine on how to fasten it, and what sort of alignment is needed.

[geoelectro]

They come off all the time. It's not needed. It could be glued on but I'm afraid the heat would kill most glue.

Geo

[jbreher]

JB Weld advertises that it is good to something like 400 degrees F. Lacking any other concrete suggestion, I'll be using that to glue the fan back onto the armature. If anyone gets curious, you can poke me in a month or three to learn how the goop is holding up.

[jdoc]

JB Weld advertises that it is good to something like 400 degrees F. Lacking any other concrete suggestion, I'll be using that to glue the fan back onto the armature. If anyone gets curious, you can poke me in a month or three to learn how the goop is holding up.

JB weld is the best, just make sure you are even with it, a dab will do ya

[David Anderson]

I've never seen the fan separated from the armature. It needs to be attached to the armature. Your guess is as good as mine on how to fasten it, and what sort of alignment is needed.

Happens all the time. Silicone gasket adhesive works, and many types have a high temp rating.

[Wes]

I would probably reach for heat sink epoxy, but I have an unusual workbench.

[BX3guy]

Hey jb:
So which cement did you use to do the repair: JBWeld, silicone gasket adhesive, heat sink epoxy, something else?
How did it go? Does it look like it's going to hold?

[jbreher]

Hey jb:

I'm guessing that's me!

So which cement did you use to do the repair: JBWeld, silicone gasket adhesive, heat sink epoxy, something else?

As indicated in post #4, JB Weld. I went ahead before the other suggestions came in. Patience is sometimes not one of my virtues. Or rather, I so seldom have time for maintenance, I need to finish and put things back together before events cause me to rip something else apart, creating another geologic layer on the workbench.

How did it go?

Like any other epoxying job.

Does it look like it's going to hold?

While I'll not be convinced for several months, it _looks_ good. And my past experience with JB Weld (recreating stripped threads in an engine block, anyone?) tells me it probably is as good or better than factory. Time will tell. As I indicated upthread, ping me in a month or three for an update.

[David Anderson]

You really don't need to overthink this particular task. I'm sure any of the suggestions will work :-)

It doesn't strike me that Leslie gave it a lot of thought to begin with . . .

[muckelroy]

Just came across this on an upper slow motor. A dab of JB weld all around fixed it.