Decided to start with a good scraping and wire brushing.
Then attacked some of the exposed rust with Kurust. I chose that because I had heard of it from the old days and my local motor factor had it in stock.
I have to say I'm very impressed. It's turned even quite badly pitted steel black and left what looks like a well keyed surface for subsequent painting.
One interesting side effect is that where the crosshead appears to be bronze welded (brazed?) where the cross tube goes through, the bronze has gone shiney. Just like if you put a penny in Coke (or I guess any other Cola)
I expected the acid fumes to be quite bad but It was OK even without a mask.
I also expected it to attack my nitrile gloves but not so.
So far so good but still a lot of work to do.
