Hi you can leave all the wiring and the items you have asked about .But I would take of the Pod and control box off if you are going to hose it down unless you seal them in plastic bags ..The reason I now leave the wiring in place and test it before build up is that in the past I have had problems with the pod wiring and it was very hard to change it with the chassis in place ..
Any way I checked out the wiring today and had a few problems ....First of all the control box was damaged due to the some of the track burnt out .Secondly the indicator switch wires needed re newing as they would not flash ...Any way a new control box fitted and switch wires fitted now all working But it will need a good run to make sure all is ok ...
Checked out the wiring found that the control box was damaged .(the track was burnt out out ) Changed it for a working one now everthing seems to be ok But It will need to be checked out with a good run when compleaterd ...
Any way with the wiring out of the way I started to strip the motor ...