"Do not despise the snake for having no horns, who is to say one day it may become a dragon"
In the jumble of parts that will hopefully become a Dragonfly, there were two crankshafts. I decided to dismantle the one that rattled most, it was also slightly mis-aligned but I managed to push out the crank pin centers and found they were full of a hardened dark grey crud.
Pressing out the crank pins followed
The crank pins don't look so bad
and
but the white metal shells are not so good.
Front looks ok but is a rattling fit on the pin
The rear is a tight fit but with signs of galling
Could the good people of this forum offer a lowest cost solution?
What measurements should I have that are within tolerance?
is it possible to replace the white metal with a roller bearing?