Crankcase mods - advice please

Bob Z. said:

I finally tried to drill the hole on the lower left of the oil pump mount.
The case was a full 1" thick at this point! The new hole emerged right on a rib on the inside of the case-red arrow.
The new hole is about 2" lower than the original drain back hole on the rear of the case flange.

Click to expand...

Bob Z. said:

I finally tried to drill the hole on the lower left of the oil pump mount.
The case was a full 1" thick at this point! The new hole emerged right on a rib on the inside of the case-red arrow.
The new hole is about 2" lower than the original drain back hole on the rear of the case flange.

Click to expand...

Keith1069 said:

Two questions for Jim....does that hole go through parallel with barrel seat or point a few degrees down and is it 1/4"? Thanks.

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