Hey man, we are in the middle of rebuilding this same engine. Was hoping that maybe we could reach out through email or something to ask a question about the bearing at the end sitting against the crank timing gear. When we put it in the bearing couldn't spin.
Nice to view this series. I am just into this process too, almost finished. I think it takes a bit of courage to publish this because it is easy to expose yourself to critisism. Please consider my comments as positive critisism!
I had to laugh a bit when I saw you switch of the camera when installing the crankshaft gear. Considering what a royal pain that is. I had to heat up mine a lot more then 250 degrees Fahrenheit and I had to get the spindle and nut on as quick as possible. It took me 3 tries, because it would bind halfway with no amount of pressure moving it any further. Maybe with a better spindle it's easier, I use a piece of M8 stainless stud which has its limitations of course. I do use a 17 mm homemade M8 nut so I can get a decent spanner onto it. And it helps to clamp down the crankcase to the bench Regarding the centering of the camshaft bearing collar, I first insert two short M6 studs diagonally. This helps the collar into the right position. It also helps to heat up the crankcase more so the camshaft almost drops into the case on its own without much pressing. This is better for the bearings and the bearing seats too. After I take the crankcase from the oven I put it on an electric cooking plate at medium heat. This prevents it from cooling down too soon.
I also cringed a bit when you hammered on the crankshaft to stem the two screws of the oilslingerplate. Are you sure you didn't bend the crankshaft? I ask because exactly that happened to mine and I had 0.06 mm runout instead of 0.02. I had to pry apart the crankshaft webs a bit.
Thank you! My hope was that the videos would help folks take on the challenge of rebuilding their /2s. I'm not perfect and there's always more to learn. The crank timing gear indeed takes a lot of heat and force to press on. I like your idea of using studs to line up the cam collar and indeed more heat would have been better. When staking the slinger screws I'm not hitting them hard. The runout on the flywheel after assembly was 0.0015".
@serojterian Hey man, we are in the middle of rebuilding this same engine. Was hoping that maybe we could reach out through email or something to ask a question about the bearing at the end sitting against the crank timing gear. When we put it in the bearing couldn't spin.
