59A-B heads

[Tom Z...]

I bought a set of 59A-B heads at a auction sale Sat. They are in nice shape and want to clean them up and keep for the future. The spark plugs were still in the holes only a few treads. The rest of the treads are rusty. Is there a tap I could buy to chase/clean these treads. Also, what to use to remove the rust in the heads? Thanks Tom Z...

 

[flatheadfool]

There are many spark plug rethread tools around KD makes
several. DO NOT use a regular tap. With plenty of oil too.

 

[RalphM]

I have one like this.

 

[19Fordy]

Bring the head and the spark plug to NAPA and buy thread chasing tool. Neutralize the rust with OSPHO. Then clean with a small round wire brush.

 

[Tinker]

Kroil or "space force" kroil. https://www.aircraftspruce.com/catalog/eppages/aerokroil.php


You could bath them in rust911 or something similar to store.