[rotorwrench]

Herm's posts should still be on here even though he is no longer with us. He would post on a lot of the questions about the main and rod bearings since that was his specialty.

If a person purchases new replacement parts for the bottom end, it would be a good idea to compare them with the part being replaced to see if dimensions match up fairly close. Those oil slinger inserts have to match the diameters in the cap. They really should be sized properly at manufacture but now days you just can't take that stuff for granted. Check everything before assembly.

The drain tube in the rear main cap has to be in good condition. If it's not right, they can leak. There is a reason that it's there and it has to be the right shape and length. Overfilling the oil sump can cause leaks as well. That oil groove could be lengthened but it would be tricky at this stage of the game. A lot of folks that do this stuff have the guide tools to cut those grooves. With no idea of which way it should go, it's common for them to end up like that one.