Originally Posted by
Jim Thomerson
On the Hunter, the crank is supported by a ball bearing at the rear, and the crankcase acting as a bushing at the front. The crank is hollow and has two holes drilled through to lubricate the bushing. I was careless in cleaning mine up, and did not get the crank lube system clear. Result was galling and seizure of the crank on the front bearing. I got it cleaned up and relapped OK.
My references are out in the shop. I thought the MK 11 was front intake.
What is the best way of cleaning with acetone i.e. pouring it into the exhaust ports or soaking