Cracked C59A block... any repair ideas?
 

Hi All.. I've found a small fine crack between the intake port and the bore on number 8 cylinder. Could I solder(very soft) or brass or tig with a high nickel rod? Would I have to fillet the crack? Could I apply some miracle epoxy compound?
She's at +80thou so would a sleeve and stitching across the deck be an option?

Just trying to save some mula here.
Regards Kevin

Re: Cracked C59A block... any repair ideas?
 

At our shop we repair block cracks that don't involve the water jacket, such as the area in the valve pocket, by drilling and tapping a hole, and inserting a threaded plug, followed by some good sealer. If the crack is into the water jacket, or at the bottom of the bore, it is unlikely a repair will be successful. When we rebuild a flathead, we install hardened seats. This provides the best way to prevent future problems.

Re: Cracked C59A block... any repair ideas?
 

https://www.fordbarn.com/forum/attac...p;d=1633120725

Cracked C59A block... any repair ideas? Kevin

Re: Cracked C59A block... any repair ideas?
 

Frank Casey can stitch that and you won't even have to sleeve it.
Gramps

Re: Cracked C59A block... any repair ideas?
 

Thanks Ron.. I'm in New Zealand but its great to know it can be sorted.
'We have the technology, we can rebuild....' The $6,000,000 motor.

Re: Cracked C59A block... any repair ideas?
 

I have stitched many similar cracks myself. I install new valve seat & sleeve after stitching. Reason is she crack decide to extend itself down cylinders later it will not hurt engine.

Re: Cracked C59A block... any repair ideas?
 

Glad there are still folks doing these types of repairs. I have two 99A Merc blocks that I need to get up to Frank to work his magic.

Re: Cracked C59A block... any repair ideas?
 

Old repair on a block I have. Cracked in same spot, pinned, sleeved & new seat. Of course later it got moisture in block from sitting outside for many years.