On the rear of the block in this photo (and on mine, later 641087 casting), about an inch from the freeze plug at 3:30 on the clock, is a 1/4-20 bolt in a threaded hole.
Maybe I missed it, but research hasn't revealed it's purpose.
Not used for anything M38 that I can find.
Could be something left over from MB-GPW or CJ.
Pretty sure it penetrates the water jacket, so it ought to be plugged in any event.
Does anybody know it's purpose?
Thanks!
Ron D.
1951 M38 Unknown Serial Number
1951 M100 Dunbar Kapple 01169903 dod 5-51
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