Leaving cam cover off overnight?

[JaR3d85]

So I am currently working on replacing my cam cover gasket, my situation is my bike is in my shed, it builds up moisture on the block and on cam cover I want to take the cover off tonight and bring it into work and put it on the granite slab to check for flatness, the guy I purchased it from is... Well lets say he's not honest and he doesn't understand how gaskets and torquing things works, so I need to make sure I don't replace the gasket just to have to swap cam covers when and if it starts leaking again... So my question is would I be fine leaving the cover off for tonight and draping a towel and a piece of cardboard over the exposed top end? Do I need to worry about condensation accumulating on the top end if I have it covered with said towel and cardboard over night? The shed doesn't leak I just live in Oregon and it's cold and humid. Any help or insight would be greatly appreciated,

 

[Idaho Red Rocket 3]

I think a couple of towels may work. Do you have a small electric heater you could put next to the bike ? BTW: While you have the cam cover off, will you be inspecting the cam/valve clearances ? You may want to.

 

[TURBO200R4]

Ĺpĺlllĺ

 

[Tripps]

Ĺpĺlllĺ

Easy for you to say

 

[Pete]

I used loctite 510 gasket eliminator on the cylinder head side before installing the rubber gasket and cam cover a couple of years ago.
No leaks since, even after lifting the cover to do cam clearance checks.