Snapped bolt in block - how deep can this be drilled?

angelobMember

I am in the process of replacing most of my A/C system and found this when I pulled the compressor/alt bracket for cleanup and powdercoating. Evidently the previous owner TRIED to drill out a snapped bolt with miserable results. I PLAN on cleaning and packing the hole with an ALL-METAL product and once cured that should give some added stability for the drill bits to stay true. I am a bit concerned on just how deep I should go with the bit, don't want to do any other damage in the repair process. Or even any other thoughts on a repair procedure.

Thanks,
Angelo

Location: Top bracket bolt

Close up of mangled drilled hole.

5/14/103:58 AM

Original Post

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