Topic: Spark Plug Restoration

[s2ms]

Can anyone please recommend a method to restore NOS spark plugs that have surface rust but are in otherwise great shape? I wire wheeled the metal surface but now they look too bright and silver. Will gun bluing work?

Thanks,
Dave

[J_Speegle]

Yes - a great use for the liquid or the paste versions. Remember to oil or wax well after to protect against the recurrence of rust

[s2ms]

Thanks Jeff. If the plugs are installed will the bluing treatment hold up to the engine heat?

[J_Speegle]

Thanks Jeff. If the plugs are installed will the bluing treatment hold up to the engine heat?

In my experience - yes.