[AT] internal block repair

[Steve W.]

John Hall wrote:
>  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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If you can get in there how about brazing over the crack? You will want
to use some heat there anyway to bake the oil out of the cast or the JB
won't stick. Brazing would also help structurally.

-- 
Steve W.
Near Cooperstown, New York