Recently I purchased a small journal 1100S crank. It was very rusty, but wire brushed up pretty well.
Likewise the attached primary gear had ferrous oxide all over it. I just degreased it, then submerged it in the `bath' (a yoghurt tub)
Here it is after 3 weeks in a 1:3 molasses bath, then hosed off and hand brushed-

A little more elbow grease and it'll be good to go.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.
