Well guys,
I took my 53 in last night for the locknstitch repair. The technician has tons of experience doing this procedure, but has done no 53's. This has me a bit concerned... not that it can't be done, but the learning curve that I am paying for. He showed me what pins he is planning on using, and also gave me a quick synopsis of the procedure.
I am hopeful for a solid repair. He assured me I made the right decision. We discussed the possibility of further cracking elsewhere. His thoughts implied that the weak spot has shown itself. Pressure has been relieved. Not to many have cracked elsewhere. Has anybody heard of cracking elsewhere?
I guess when these bocks were casted, the block mold was laying on its side. As the molted metals came together at the end of the mold(region of cracking). A faster cool-down, if you will, force a weaker spot in the block. This is probably how they did them all. The thinner wall caused by a missread blueprint perpetuated the problem. Does this sound like BS? Well everybody has got a different theory. I heard this from a Cummins tech.
I will let you know soon what happens. One thing is for sure, when he grinds the pins down, and paints there will be know sign of a crack. The rough estimate of $500. 00 to $1000. 00 for a in frame repair. Crack location, location. Depends what needs to come off. Also... machinist wages are pretty good these days. A far cry from a block change though. I will try to keep you informed.
Brian