Oxidised aluminium

[Ted]

Some of the ally parts on my engine are oxidised - alternator, brackets, inlet manifold etc.
I've painted the inlet manifold with smooth hammerite, and I'm happy with that, but has anyone any ideas how to remove the oxidation from the other parts?

 

[Aoraki]

Unfortunatly it's usually a case of elbow grease, if you can get to the parts! I've not tried it, but have heard that dowsing with Coke can work.

 

[jefrs]

1) degrease engine with your favourite engine degreaser product, mine's Comma Hyperclean. Check out motorcycle cleaners.

2) Autosol.