Wiper Wash Switch

PostPost by: keitht » Wed Jan 29, 2014 8:58 pm

Hi,
I have 1968 +2, unfortunately the windscreen washers (plunger type) no longer work. The wiper part of the switch works fine. I am having difficulty finding a replacement. It will probably better to incorporate an electrical pump into the system. Has anyone on the forum carried out this mod? any suggestions for a discreet switch and location for it would be welcome.

Keith
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PostPost by: Bud English » Wed Jan 29, 2014 9:56 pm

I'm not very familiar with that type of wiper switch, but can you take the switch apart and add a momentary switch that can be activated by the pump plunger? Maybe a roller type micro switch would work. It would still look original.
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PostPost by: pharriso » Wed Jan 29, 2014 11:30 pm

They do come up on eBay, but are now damned expensive.

Last one I saw sold for ?205!
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PostPost by: Mazzini » Thu Jan 30, 2014 12:24 am

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PostPost by: theelanman » Thu Jan 30, 2014 8:03 am

when I bought mine the plunger didn't work
so I bought another......however on further investigation I found a small electric pump at the bottle.....
I called the previous owner only to find that hed fitted a small switch under the dash for said pump....and thus I had a good squirter for the screen.......
I like my solution.......makes washing the screen easier than the pump action
just a thought
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PostPost by: john.p.clegg » Thu Jan 30, 2014 8:54 am

Gareth
With a small two position switch (down-spring loaded/up-on) and a wiper relay,you have the choice of intermittent/perm. wipe and pump...I'll dig out the diagram if you're interested...you could even use it as Bud said..

John :wink:
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PostPost by: theelanman » Thu Jan 30, 2014 9:07 am

John
very true but as this was already done for me (all be it a separate switch) I thought Id leave it.......
me n leccy have fallen out in the past.... :mrgreen:
ta
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PostPost by: john.p.clegg » Thu Jan 30, 2014 9:17 am

Do you have the double horn switch (steering wheel centre and indicator stalk )?...If so you could utilise one of those...

John :wink:
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PostPost by: theelanman » Thu Jan 30, 2014 9:59 am

john.p.clegg wrote:Do you have the double horn switch (steering wheel centre and indicator stalk )?...If so you could utilise one of those...

John :wink:



I do......
the only thing is I know Id end up cleaning my windows in anger at other motorists..... :mrgreen:
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PostPost by: RotoFlexible » Thu Jan 30, 2014 2:59 pm

keitht wrote:Hi,
I have 1968 +2, unfortunately the windscreen washers (plunger type) no longer work. The wiper part of the switch works fine. I am having difficulty finding a replacement. It will probably better to incorporate an electrical pump into the system. Has anyone on the forum carried out this mod? any suggestions for a discreet switch and location for it would be welcome.

Keith


I unscrewed the plunger/pump assembly from the back of the wiper switch and replaced it with an inexpensive momentary-contact pushbutton switch from Radio Shack. The threaded sleeve surrounding the button was a pretty good fit into the wiper switch, and I secured it with a little epoxy. It's activated by pushing in on the wiper switch knob, just like the original. I got an aftermarket washer/tank assembly from the local auto parts store. Works like a champ...
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PostPost by: Quart Meg Miles » Thu Jan 30, 2014 5:23 pm

Recent (4th Feb 2013) thread may help:.

lotus-chassis-f36/screen-washer-pump-t27243.html?hilit=washer

It isn't difficult to go electric but mount the pump as low as practical to help it prime.
Meg

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PostPost by: keitht » Thu Jan 30, 2014 7:15 pm

Thanks for the great response,
My switch is the sealed plastic type switch so its not straight forward to separate the pump/plunger assembly.
I am sure I will be able to sort something out from this post and the link to the previous post.

Will let you know how I get on.

Thanks again
Keith.
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PostPost by: keitht » Sun Feb 02, 2014 1:33 pm

One has come up on e-bay, trying to buy it, but it is now starting to get into the expensive end.
Will be going the electrical route I think.
If its no problem John, would you mind digging out your diagram?

Thanks
Keith
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PostPost by: john.p.clegg » Mon Feb 03, 2014 7:51 am

Keith
As requested...(also gives a decent view of the wiper control)

wiper wiring.JPG and


In my install,the relay,bottom right of the pic was fitted right on top of the wiper motor wiring using crimps to connect the two wires ( 53,15 ) picking up a local earth L and only one wire to the switch W/W (centre off,spring loaded down,locking up ) this also gives control over the pump and wipe..

John :wink:
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PostPost by: keitht » Mon Feb 03, 2014 6:59 pm

Great,

Thanks John.

Keith
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