14 years ago
Wondered if someone might have some pointers for me on how to repair a
woodruff (are they called this in the US? Half-moon shaped disk) keyway on
a steel shaft.
Crankshaft is steel
Woodruff key is approx 5mm thick (3/8ths I think)
The alternator pulley bolt (on end of C/shaft) became loose and allowed the
pulley to chatter. Unfortunately this has allowed the key to chatter too &
has opened out the keyway slightly.
I took the pulley, preheated with a MAPP gas blowtorch, zapped it with the
MIG and allowed it to cool. I then spent a fair while with needle files
re-dressing the keyway. (Heavy pulley 110A 240V mig, C25 mix)
How might I be able to repair the crank? It will have to be done in situ.
Would hitting it with MAPP, MIG and careful use of a Dremmel suffice?
(I wondered about making a copper key to give me a non-stick surface to
weld up to.)
I really don't want to weld a key in permanently
I've used Quicksteel for the time being.