- Main bearings
- Good drill
- 15/64\" bit
- Old or unused main bearing half
- Spare block
- Diamond needle files
DIY: main bearing oiling hole mod
Moderator: Gaskleppie
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DIY: main bearing oiling hole mod
This DIY will show you a way to enlarge the main bearing oiling holes. I take no responsibility for anything you mess up by doing this DIY! Do it at YOUR OWN RISK! I chose to do this because the hole in the main bearings are considerably smaller than the hole in the block and the hole in the crank. I view this to be a restriction in the oiling of the rod bearings, which seem to spin way too often in these motors. This is just one of the many things I have done to my oiling system, but I am not going to go into detail of that here. This is not my original idea, I know that ENDYN does this and I would not be surprised if others do too. You will need the following: