Just to take this thread in a different direction.
Having the usual problem of the hood not working I used the info on here, starting with Shipkiller***8217;s great guide and got the hood off.
Yes, the motor/pump was sitting in water. I wanted to avoid having to buy a new/refurbished unit and wanted to see if the old one was kaput or could be recovered. I was encouraged in this that the stub end of the motor spindle still turned easily so felt mechanically OK.
The aluminium coupling housing comes off the pump and the motor part comes off the coupling housing easily, just two Allen screws each. Dismantle the motor from the terminal end; lightly grind off the eight crimps from the body over the end cover. Then prise off the metal end. Getting the plastic moulding with brush holders and the electronic board out wasn***8217;t easy, be careful and patient. The armature then pulls out after pulling the plastic pump/motor coupling off the other end. I found that even when wet the motor armature was still OKish at 100K Ohms winding to shaft / core. Once dried out in front of a fire keeping it no more than hand warm it recovered completely. The field magnets in the body were fine after a clean up. My problem was with the electronics around the brush holders, I think these are just to reduce radio interference. My man at work managed to clean it all up and replace components (a bowl of fruit exchanged hands this time ***8211; healthier after Christmas; both very satisfied with the transaction) so it all went back together as it should be. Plan B was to eliminate the electronics and wire the terminals straight through to the brush holders ***8211; a bit of interference for a few seconds as the hood moved didn***8217;t seem a great penalty if it worked. Test the motor on its own wired straight off a battery, reverse the wires to reverse the rotation.
You can top up the oil through the housing until the reservoir is almost full. I just used engine oil, not the right stuff I know but very close. The plastic oil reservoir can be taken off by removing the Jubilee clip, but the official topping up point is through the central screw on the end. For those who collect O ring sizes, the one between the coupling housing and pump is;
Housing diameter 42.6mm
Spigot diameter 45.9mm
O ring 46mm outside diameter, 2mm chord diameter
And the reservoir is sealed with
Groove diameter 41.3mm
Reservoir diameter 45.9mm
O ring 42mm inside diameter, 3.1mm chord diameter
A wire straight off a battery checked that it worked ***8211; it did in both directions ***8211; sort of. It would move slightly in both directions but didn***8217;t fully extend. I was a little perturbed that it was truly OK but getting it back into the car and fastening up the cables ***8211; it worked fine. Extending the spend aversion approach; I dried out and didn***8217;t renew the plastic housing and foam insulation.
So, if you***8217;re handy enough to get the hood off yourself you***8217;ll probably be handy enough to determine if your motor can be recovered and do it for next to nothing ***8211; have a go, you don***8217;t always have to lash out on new. If you can***8217;t fix it then you have to get a new one anyway but at least you***8217;ve tried.
I hope this is encouaging for the impecunious.
