[AT] internal block repair

[George Willer]

Hi John,

Welding or brazing is a waste of time for this too common problem.  It's the
weakest place on the C-60 engine and welding can't ever be as strong as the
(too weak) original casting.  There are two different opinions regarding
welding this area... Those who think they can weld the casting back to
original strength, and those who know better.

I have quite a few Cub engines that have this same problem.  The best
solution is, of course, replacement of the busted block.  Without major help
this high stress area will always be a problem.  Here's one approach I've
used that seems to work OK for a working tractor, although not very pretty.

http://www.farmallcub.com/phpBB2/viewtopic.php?f=11&t=22754 

A friend has taken this concept a little farther and produced a nice looking
support that he sells reasonably.

http://www.kubkraft.com/ 

George Willer

> -----Original Message-----
> From: at-bounces at lists.antique-tractor.com [mailto:at-
> bounces at lists.antique-tractor.com] On Behalf Of John Hall
> Sent: Thursday, January 01, 2009 8:15 AM
> To: Antique tractor email discussion group
> Subject: [AT] internal block repair
> 
>  Trying to fix an oil leak on a Farmall Cub. In years past the block was
> broken at the front right lower corner (not too uncommon depending on the
> owners). The block was welded on the outside and where the pan bolts up---
> no
> welding on the inside. Now the weld has cracked where the pan lays so oil
> gets inside the crack from inside the motor, runs down to the gasket and
> then leaks to the outside. I am thinking of cleaning the inside with carb
> cleaner and applying some JB Weld or Belzona to the crack. Then I am going
> to coat the area with Glyptal. Then we will reinstall the pan using black
> oil resistant silicone on the gasket. Other than pulling the engine and
> re-welding the block (which is not an option for this Cubs owner) anybody
> got any other ideas/suggestions?
> 
> Happy New Year!
> 
> John Hall
> 
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