Bike noise, creak, click, creaks, clicks, clicking, pinging sound - help

You'll do well to get a shallower spacer to get the clearance to the specified 3mm.

If you've too much clearance at the top the top stem bolt has nothing to clamp against (ie no steerer).

Thanks for all the tips...i've sorted it! Happened to have the instruction manual which came with my cinelli stem. It stated that you need 3 - 4 mm space between the top of the steerer and the top of the stem. Checked mine it was about 1 - 2 mm. So i added an extra spacer so its now 6mm (only had a 5mm spacer to hand) and the noise has dissapeared!