Hmmm, this does not look like the lister forum

[amashinga]

Or smell like it, and its all clean an stuff

Jokes aside, I am trying to resurrect an old pincor genny head and I have a basic question I hope to get a response on. The generator has a strange board, brush holder with a bunch of couplings. It appears to be ceramic. **broken link removed**

As you can see, its prone to breaking. I need to fix it. My first thought was to just replace the broken piece with fibreglass, but epoxy breaks down with heat, and I dont know how much heat these brushes generate. Any ideas on material, glues and places to buy them ?.

Sorry about such basic questions guys, but please understand that my pet diesels dont have so much as an electric start

Cheers
Bruce

 

[mvs sarma]

Or smell like it, and its all clean an stuff

Jokes aside, I am trying to resurrect an old pincor genny head and I have a basic question I hope to get a response on. The generator has a strange board, brush holder with a bunch of couplings. It appears to be ceramic. **broken link removed**

As you can see, its prone to breaking. I need to fix it. My first thought was to just replace the broken piece with fibreglass, but epoxy breaks down with heat, and I dont know how much heat these brushes generate. Any ideas on material, glues and places to buy them ?.

Sorry about such basic questions guys, but please understand that my pet diesels dont have so much as an electric start

Cheers

Welcome to the forum!!
Bruce

When the original manufacturer used Bakelite sheet and it worked so far, you can well try to replace with similar meterial. afterall we are trying to service it and not redesign.

 

[chrisjpitt]

As you can see, its prone to breaking. I need to fix it. My first thought was to just replace the broken piece with fibreglass, but epoxy breaks down with heat, and I dont know how much heat these brushes generate. Any ideas on material, glues and places to buy them ?.

Yes, I'd use Paxolin or Tufnol sheet first - as its tough, easy to work and cheap.

Tufnol is rated to around 120 deg C for continuous duty - so it should handle usual motor/genny heat OK. If that is not enough, you could go to something like PEEK (250 deg C) - but it is pretty expensive!

If the brushes are getting that hot, I would be concerned there is something wrong - as that kind of heat is likely to damage the com or slip rings!