[AT] internal block repair

[John Wilkens]

I've tried fixing a couple of broken Cub blocks with little 
success.  If I attempted it again I would jerk the engine, drain all 
the oil out of it, set it over on it's side,   burn (heat) all signs 
of oil away from the crack with a tourch and braze it.       This is 
the reason I don't buy Cubs any more!   John W.


At 05:14 AM 01/01/2009, you 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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                    In the wide-open spaces of NE Oregon