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MG MGB Technical - dashboard switch for electrical washer pump

Hi was there ever a 'factory' dashboard-mounted switch for an electrical washer fluid pump or are they all after-market?

Can anybody recommend a switch which fits the (1969 metal) dashboard and looks right? While there are hundreds of offers for MG electrical washer fluid pumps to be found nobody seems to offer a switch to operate it.

Regards
Thomas
Thomas Nussbaumer

All MGB electric washer pumps had the switch on a column stalk for convenience. For a dash switch you would really need a non-locking push-button, I'd be looking at fitting one to the back of the old manual pump button if I was thinking of changing and so keep the same visual appearance.
P Hunt

Hi Paul
unfortunately I don't have a manual pump I could modify and at 15 £ they are too expensive to buy one just to transform it into an electrical switch.

There is already a (Bosch) switch on my dashboard which fits all right, just it's all black plastic, see picture. I hoped somebody could point me in the direction of a nice switch.



Thomas Nussbaumer

Personally I think that is very neat and unobtrusive. If you wanted a chrome bezel/nut a number of places do momentary push-buttons with them, but if you want a matching toggle then just use a heater or wiper switch. You may even be able to modify it internally to make it non-latching.
P Hunt

http://www.vehicle-wiring-products.eu/VWP-onlinestore/switches/push.php
Michael Beswick

Hi Thomas

Visit a local electronics parts shop and check out their range of switches. I found a nice one with chrome surround that only needed a slight opening of the dash hole to fit.

Herb
H J Adler

Take a regular spring loaded switch and fit a black handle from an old Lucas switch. You might have to file down the toggle a bit and drill a hole in the new handle. A little epoxy and hand labor with black paint wil fix you up.
Sandy
SANDY SANDERS

Michael do you have the '24DB' switch with chrome bezel '29F' installed?



From the principle of operation I just found what I need (see picture). Unfortunately there seems to be no Lucas-style pushbutton switch of this dimension, just much larger ones to operate starter motors.

Picture: Sprung off-on. For windscreen washers on cars etc. Requires hole 14.5 mm diameter. Rated at 5 amps on 12 volt systems
(Part number: SPB204, Price: £12.54)


Thomas Nussbaumer

Thomas- No! I still use the old push valve as it still works! But I recalled seeing this and noticed it had a 12.5mm hole which looks about right. They also do a toggle switch 68701 off/mom (presume momentary) for 13mm hole but with metal toggle or SW9 off/on with plastic toggle.
Michael Beswick

I had a pair of the old push button manual pumps. I gutted one and fitted a momentary switch from a local auto parts store. I held the switch in place by rolling up a small length of thin sheet metal, inserting it into the old pump until it rested against the new switch. At this point, I drilled a small hole in the side of the pump and inserted a small self tapping screw to hold it all together. It looks completly stock and runs the electric pump perfectly. RAY
rjm RAY

This thread was discussed between 07/12/2009 and 08/12/2009

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