[stamford]

........only if removing the alloy housing.

The valve itself bolts cleanly to the perpendicular face and has an 'o' ring iirc. That is where the alignment is an issue as the location is very poor and that is where the valve can stick if not located in the housings countersink. Leaving the valve slightly loose on its fixings and then turning the ignition on will allow the valve seat to align, tighten fixings and start engine. It is only a basic solenoid with a return spring and shaft, the work is done by the tapered end face.