So i Gave the knuckle 24 hours in the bath
And i have to say i am delighted with the results compared to the effort and time it took with the drill and wire brush
When i took it out of the bath it still had some flakey bits so i gave it a blast with the power hose to remove what was left
Then i dried it and ran over it with the wire brush
and gave it a coat of kurust
Also the process removes all the grease and grime and crap
Untitled by
stephen harborne, on Flickr
Untitled by
stephen harborne, on Flickr
Untitled by
stephen harborne, on Flickr
Untitled by
stephen harborne, on Flickr