6pack
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RE: Hub bearing

To: "'Robert M. Lang'" <lang@isis.mit.edu>, <N2K9S2@aol.com>
Subject: RE: Hub bearing
From: "Jim Swarthout" <jswarth1@tampabay.rr.com>
Date: Wed, 9 Apr 2003 11:23:09 -0400
Yeah,

The operation was successful, but the patient died!

There's actually nothing wrong with using heat, (for some applications),
to "mate" parts. It should however be controlled, using an oven set to a
precise temperature based on the characteristics of the material.

It is a bad practice to arbitrarily heat metal to an unknown temperature
and then rapidly quench it.

Jim

-----Original Message-----
From: owner-6pack@autox.team.net [mailto:owner-6pack@autox.team.net] On
Behalf Of Robert M. Lang
Sent: Wednesday, April 09, 2003 10:04 AM
To: N2K9S2@aol.com
Cc: 6pack@autox.team.net
Subject: Re: Hub bearing 

On Tue, 8 Apr 2003 N2K9S2@aol.com wrote:

> Hey List,
> 
> Here is a new one. I was surfing and found a site that says if you
heat the 
> rear bearing hub with a torch just shy of a fire ball,  plunge it into
a cold 
> water bath, you will feel it pop. then pound it on a concrete floor
and it 
> will come apart.
> 
> http://www.torontotriumph.com/articl12.htm
> 
>  Go figure, I just thought a bigger hammer would do the trick.
> 
> John Davis
> 73 in the works

It is "methods" like this that make me extremely nervous about buying
old
and used parts for TR6's. I'm sure the process works, but what it does
to
the metal involved is what concerns me.

I've seen hubs break from stress cracks.

I wonder what the "popping sound" is actually describing.

In other words... NO THANKS.

Please use the proper tooling or get someone that does have the proper
tooling to do this job.

rml
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