Cracked C59A block... any repair ideas?

[Fatheads4ever]

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

 

[supereal]

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.

 

[mercman from oz]

Cracked C59A block... any repair ideas? Kevin

 

[Ol' Ron]

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

 

[Fatheads4ever]

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.

 

[KiWinUS]

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.

 

[Tim Ayers]

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

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.

 

[RalphM]

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.