On Saturday, 29 August 2020 13:34:37 UTC+1, wrote:
ss used his keyboard to write :

I have soaked in WD40 for a couple of days and still stuck.
The arrows in green are points I can tap with hammer but dare not hit too
hard in case the `lug` breaks off.

WD40 is next to useless as a penetrating oil, try a proper penetrating
oil or diesel.

+1. The best penetrating oil is ATF. It's 100% detergent oil. If no solvent is added it's just slower to penetrate.


Hot air gun may help a little, I would hot and cold shock, spraying
penetrating oil at the thread block interface so the cold contraction
helps draw the oil in.

Check out youtube, there are numerous ways to free up rusted parts. Evaporust is sponsoring lots of youtubers to promote their overpriced solution. Project Farm trialled some options.


NT