Ok, I have a desire to keep the car completely standard but I have just misbehaved...
After cleaning and cleaning and cleaning the gearbox was clean, but very dull and didn't have a completely even color. I realised that it will be impossible to keep the gearbox clean for more than 5 minutes whatever I do.
I could blast it with glass beads but it would be even more sensitive for dirt. I could put on a clear coat but with my luck that would become yellowish over the years. And the uneven color would still be visible through the clear coat.
SO, I put on a primer and aluminium engine paint from MoTip and I think it looks really great
I have used this spray on other projects and it's easy to clean, it's resistant to petrol and oil, it can handle the heat and it looks good for a long time. So I'm happy