I done my first Cub crank pin swap about 60 years ago. If you scribe opposite the crank pin, then on reassembly you only have to adjust by hitting the outer face to bring the scribed face in alignment.
I realize this is an older video. I have never removes or disassembled such a crank setup. But I think if you mic'd the distance between the two halves initially and than machined a spacer plate to cover most of the circular area, than when you reassembled it again you could merely press it again using the machined spacer plate. Also is you use a vice, you could adjust the concentricity so much easier... Just an idea!
Oh dear, You really should ask if you don’t know what to do, You are hammering the race in the con rod when you have a vice next to you! Clean the sludge trap before reassembly!
I done my first Cub crank pin swap about 60 years ago. If you scribe opposite the crank pin, then on reassembly you only have to adjust by hitting the outer face to bring the scribed face in alignment.
I drill out the sludge trap plug, re tap the hole to UNF and. Red locktite. an Allen set screw back in.
I realize this is an older video. I have never removes or disassembled such a crank setup. But I think if you mic'd the distance between the two halves initially and than machined a spacer plate to cover most of the circular area, than when you reassembled it again you could merely press it again using the machined spacer plate. Also is you use a vice, you could adjust the concentricity so much easier... Just an idea!
That's not a bad Idea. That would definitely aid in keeping the 2 sides parallel to each other.
So you didn’t undo and clean the sludge trap?
You really should check it.
If you have stripped a motor down to replace a crank pin
and not cleaned out the oil sludge trap
the job is a bodge
Shouldn't the rod drop under its own weight - that looks a bit tight to me?
the rod MUST drop under its own weight
Oh dear,
You really should ask if you don’t know what to do,
You are hammering the race in the con rod when you have a vice next to you!
Clean the sludge trap before reassembly!
but the vice is loose and moving around
not a good set up for precision crankshaft rebuild