[SEL] Babbit bearings & pitted shafts

[Larry Evans]

Andy,

JB Weld is good to 500 degrees F. per factory web site.  See:
http://jbweld.net/products/jbweld.php

I have used it with good success in a 3 hp. Fairbanks Morse Z cylinder to 
fill deep grooves caused by an errant wrist pin.  So far the repair has 
lasted about 15 years.

I just looked at the Devcon site and their standard steel filled epoxy is 
resistant to 250 degrees F.

I think that the various babbitt metals have melting points ranging from 
350 to 450 degrees F.

Regards,
Larry

At 11:30 AM 3/28/2005, you wrote:
>I need to pour some new bearings and the shaft has some deep pits.  My 
>original plan was to simply fill the pits with JB weld or Devcon and sand 
>flush with the existing shaft.  The filler will have plenty of strength on 
>the shaft but I wonder how it will hold up to the heat of pouring the 
>bearing?  Who has experience with this problem?
>
>
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Larry Evans
Arcadia, Southern California, USA
MailTo:LFEVANS at pacbell.net
http://www.oldengine.org/members/levans/