Reply To: Crankcase Assembly Discussion

[Don]

Bob Wight wrote:

OK, thanks for the confirmations. I’ve always applied the sealer to one side only but always have some concern about blocking the oil passages. On that same motor, I found some NOS rod screws because the motor had been locked up and the old screws looked a little sketchy. Otherwise, I’ve always re-used the original screws. And I’ve always used oil on the screw threads.

Fleetwin – good tip on the dab of grease around the bearings and passages. And you are right, this motor does not have or use an O-ring on the upper crank bearing. Not sure I totally buy into that recirc system but guess I’ll find out after I get it running. Waiting on delivery of a new gasket set before I start reassembly.

I’m with you on that crazy recirc deal…Not having an oring to seal between the bearing case and crankcase halves is nutso….Unfortunately, in this case, you can not add one or you end up plugging up the system and the oil gets into the points… It’s just too bad the engineers couldn’t have added an oring at a lower point on the bearing and used both systems…