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inside threads of Robur adjustment collar

PostPosted: Thu Apr 03, 2008 9:06 am
by sutono
Has anyone ever replaced the INSIDE threads on the adjustment collar on a Robur. Esi says the part does not exist, and that I should use my grinder for parts.

: (

Re: inside threads of Robur adjustment collar

PostPosted: Thu Apr 03, 2008 10:00 am
by nick
Uh...

HUH?

What do you mean "inside threads?" You mean the threading on the grinder body?

I'm assuming you did some bad cross-threading, and you need new threading?

Re: inside threads of Robur adjustment collar

PostPosted: Thu Apr 03, 2008 10:16 am
by barry
sutono wrote:Has anyone ever replaced the INSIDE threads on the adjustment collar on a Robur. Esi says the part does not exist, and that I should use my grinder for parts.



Ouch.

I just had a look at a Super Jolly, fwiw. If the Robur is constructed similarly, it appears the grind chamber and the burr carrier mounting threads are part of the body casting, and not a separate part.

Shop around for a blowed up Robur with a good housing.

Re: inside threads of Robur adjustment collar

PostPosted: Thu Apr 03, 2008 10:50 am
by Mark Inman
Why could you not try to re-tap it? Could you not repair the damage (assuming you did not strip the whole thing out) by running a tool through it?

Mark Inman

Re: inside threads of Robur adjustment collar

PostPosted: Thu Apr 03, 2008 11:04 am
by barry
Mark Inman wrote:Why could you not try to re-tap it? Could you not repair the damage (assuming you did not strip the whole thing out) by running a tool through it?



That would be one honkin' huge tap.


OH SWEET! Lookee what I found at McMaster:

Internal Pipe and Screw Thread Restorer, item# 2598A11, and metric dies 2598A13.

Re: inside threads of Robur adjustment collar

PostPosted: Thu Apr 03, 2008 6:11 pm
by Mark Inman
Barry, don't you think this would do the job?

Re: inside threads of Robur adjustment collar

PostPosted: Fri Apr 04, 2008 12:33 pm
by sutono
Barry,

You are a genius! We ordered the tool today, and are looking forward to creating a new and different $2000 paper weight, with slightly altered threading : ) They have metric!

Niko,

Yup.

They have metric a

Re: inside threads of Robur adjustment collar

PostPosted: Sat Apr 26, 2008 7:05 pm
by sutono
the thread restorer totally worked. thanks, barry!!!

Re: inside threads of Robur adjustment collar

PostPosted: Sat Apr 26, 2008 10:02 pm
by barry
cool. that's great to know!