Originally Posted by
sahadev
An oxalic acid bath seems to be the cure-all for removing rust from metal parts. As stated above there is plenty of info on the C&V forum.
Just curious - does your bike have cottered cranks? And it is an '86 model? I would have thought if it was late 80's that it would have a cotterless crank. Were they still putting cottered cranks on their bikes that late?
They are still using cottered cranks in some parts of the world.
I would try the oxalic acid bath, it works wonders on rusty chrome.
Aaron