Crank took some time also and I found a lot of sludge and a small piece of plastic in the oilways. The journals where hand polished. I used 10,000 grit wet and dry on the heavily soiled journals. The specs where in line with what is published else where on the net. It has been crack tested, but will have it tested once more and run through final cleaning just before fitting
This is how I started
after a few round in the ultrasonic bath
And a number of hours later by hand