random hole in block?
#1
CF Veteran
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Join Date: Jan 2015
Location: Minnesota
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Year: 1999
Model: Cherokee
Engine: 4.0L
random hole in block?
It's the 5.2L V8, it has what looks like a casting hole in the bottom of the block, but it's open? I found another hole but it has a plug in it. Should I be concerned?? It's on the drivers side between the oil pan and tranny on the block.
#6
Old fart with a wrench
Just about every engine produced today by automated machinery has dowel pin locations for set-up of the block for different machining operations. These pins locate the raw casting on a jig so everything is machined in it's proper locations. They are usually about 3/4" in diameter in the US, probably metric overseas. Usually the oil pan surface is machined first, then the holes are put in, then the rest is done off those locations.
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