01-04-24, 04:15 PM
The phrase Sharp was possibly looking for is 'galvanic corrosion' where you have 2 dissimilar metals (Aluminium alloy of the cylinder head and the mild steels of the studs.
If the studs arent badly corroded, and the outer threads are serviceable, then as has been suggested leave them be. If however they are a rusty mess, take it to a professional for them to remove, do not try it yourself and if you can remove the engine as it makes access for that person a lot easier.
If the studs arent badly corroded, and the outer threads are serviceable, then as has been suggested leave them be. If however they are a rusty mess, take it to a professional for them to remove, do not try it yourself and if you can remove the engine as it makes access for that person a lot easier.