[Amps] mounting a vacuum cap

[Steve Flood]

I am going to use a Jennings vac. cap in my amp project.  It is the type with the blue 'bell' housing over the 'rotor' end.  My amp cabinet will have a dual front panel - the inner rf compartment panel will be a few inches beind the outer panel to allow for meter mounting.  Is it okay to mount the Jennings so the blue bell is in this 3 inch space (the front mounting ring of the capacitor would be bolted to the rf compartment front panel).  Or is it best to keep the entire unit in the rf compartment with only the shaft protruding through the rf compartment wall.? 

Steve KK7UV