Originally Posted by JW51
Prep is a big deal. Watch this for a unique way to draw the oils out of the cast iron.

Engine paint prep

I used the same technique to sweating salt out of cast iron pump housing and heat exchangers to make epoxy repairs. These were submerged in the brackish water of the Hudson river, some for several years and it works. I my case, I used a OA torch. You may have to do it more than once.


Phil
Moderator, The Engine Shop, Interiors and Project Journals

1952 Chevrolet 3100, Three on the Tree, 4:11 torque tube
Updated to: ‘59 235 w/hydraulic lifters, 12v w/alternator, HEI, PCV and Power front Disc Brakes
Project Journals
Stovebolt Gallery Forum