Main Bearing Oil Hole Alignment

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Posted by Dan in TN [162.158.154.92] on Wednesday, June 11, 2025 at 17:31:54 :

Finally got to a point where I could start putting my 230 back together after a (way too long) wait.

The upper rear main bearing oil hole appears to be misaligned with the hole in the block. I stole this picture from the p15-d42 forums, but mine looks exactly the same. It seems this is a somewhat common issue, since I found it discussed a few times over there:

https://p15-d24.com/topic/49133-main-bearing-oil-hole/

and

https://p15-d24.com/topic/55732-rear-main-seal-and-bearing-questions/

I got the bearings from Midwest Military, so I'm confident they're correct. Is the consensus that it is okay to proceed with the bearing as is, or should I pull it and drill out the hole so it fully extends over the oil passageway?

I'm trying to learn as I go, but I was hoping I'd get past step 1 of reassembly before I started having questions...


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