The head is off to the local machine shop for crack testing, we’ll know if everything is good on Tuesday. If it is then it’ll get a bit of clean up.
Clean valves! This took a lot of time! The exhaust vales were cakes. Used a technique from Jason (GreatOldOne) placed the valve in drill and used increasingly finer sand paper to take the layers off and then some metal polish to finish it. The intake valves just need a run over with 1200 grit & some degreaser, then metal polish.
This was a 4 hour process with two people and two drills so about 8 work hours to clean them up! Some of them still have a bit of carbon build up but its very small and they still need to be run throug the ultrasonic cleaner and degreaser!
The tops of the valves where cleaned like the bottom half, the centres took a bit more work with sand paper and the edge of a knif blade. The only area left alone was valve seating area, that will be ground in when the head comes back from the machine shop.
Rest of the engine is out of the Sportster, looking a bit empty now.
Engine and gearbox out!
The clutch coming off
Sump off!
6 pistons removed from the block and numbered. They need a good clean and the conrods swapping for the 130mm M20B20 ones. I’m going to check the M52B28 conrods and the M50B25 ones I’ve got knocking about as well see if there’s anything more suitable.
Bores in the block look great!
Flywheel off, had to lock the crankshaft in place with a metal bar between piston 3 and 4 then the bolts came out really easy!
Crank bolt came out really easy – surprisingly!
