727 Valve Body Disassembly Findings

Aluminum valve bodies are bad. That's the whole problem with old Fords. Aluminum valve bodies with screens instead of filters. Particles cause furrows to form in the aluminum by the steel valves. So, where steel valve bodies wear away, aluminum valve bodies get raised ridges in them; causing the valve to stick. To fix aluminum valve bodies and governors, you have to use an abrasive to wear away the aluminum raised furrows.