Well we have all heard how to drown it in brake cleaner to free it, but what is inside it.....

well here you go....





I must say sorry for the crap photograph, I didnt see how bad it was till i got it on the pc after i had put it all back together, so its going to have to do!

Parts are valve body and motor shaft, 2 steel washers and a rubber style one, and a circlip, in that order, to hold motor rotor/coil assembly onto shaft.

after circlip is a plastic cone shape piece, its job is to spread the motors contact brushes so the dont get fouled/bent on the back of the motor commutator as its slid inside the casing.

there are three contacts to the motor, for the thre connections in the multiplug.

with unit dissambled, and the motor rotor on the shaft, you should be able to blow/suck air through it in the open position, and not in the closed position etc, I was quite impressed at how much 'closed' is closed for such a simple design, it could easily starve an engine of air, or a human...