Will electric pump pump through manual washer pump?

Post by **Axolotl** » Thu Nov 23, 2006 3:55 pm

I have an electric windscreen washer pump kit to fit to my Traveller, but I'd like to retain the old manual pump for old time's sake.

Does anyone know whether the electric pump will pump through the old manual pump if I connect it in series with the exiting tubing?

I don't want to get into complicated double jets, or non-return valves in the tubing if I can avoid it.

Post by **alex_holden** » Thu Nov 23, 2006 4:10 pm

I'm pretty sure it'll work.

Post by **Kevin** » Thu Nov 23, 2006 4:24 pm

Would it be easier to get one of the press button switches that look similar to the one on the original manual pump for originality sake,and just hang onto the old part, as you are going to have to fit another switch somewhere else to operate the new pump.

Post by **Axolotl** » Thu Nov 23, 2006 5:00 pm

I think I have the switch problem covered. Holden Classics sell a look-alike switch that does single-speed wipers with a third position that works the washers and wipers, so the switch looks the same as the old one, but does more. (I have to ask Santa nicely, as it is £35

.

However, since I posted the question, I think I've hit a bigger problem in that the electric pump might pump through the manual one all right, but the manual pump won't suck through the electric one.

There doesn't seem to be any way of getting a flow through it unless it is running.

At the moment, I've devised a scheme with extra tubing and non-return valves that will let both pumps feed the existing jets. More complicated than I'd intended, but maybe more effective, as there won't be much to impede the flow.

Onwards and upwards!

Post by **rayofleamington** » Thu Nov 23, 2006 7:49 pm

it will be very easy to get the manual pump to work (although why you would want 2 pumps is beyond me).
All you need is a low pressure non return valve (the sort you use in the feed of a washer pump) and connect that in parrallel to the electric pump. You could then dispense with the one way valve on the pick up pipe (i'm guessing that the electric pump has its own one way valve)

Post by **paulhumphries** » Thu Nov 23, 2006 9:37 pm

Why not source a source manual washer, undo the rear plastic crimped on assembly and modifiy so that the button now pushed an electric switch ?
Visually it'd still look like a manual pump.

Paul Humphries.

Post by **Peetee** » Fri Nov 24, 2006 5:56 am

why not leave the manual pump on the dash, discard the tubes and route a new electric pump (out of sight say, behind the glovebox) with new tube to suite.

Post by **RogerRust** » Fri Nov 24, 2006 9:10 am

On the subject of pumps I dont have a pump on my 61. Didn't it have washers as standard?
It has a period mod electric pump and little push button under the dash, but no sign of a manual pump of hole for it. Perhaps the original was floor mounted??

Post by **RogerRust** » Fri Nov 24, 2006 9:14 am

On the subject of pumps Axolotl if the electric pump is man enough it will pump through the manual pump. Try it by sucking on the pipe that goes tp the washer jet you'll find that you can draw water through the pump, but there is some resistance. As a bonus you get to taste 40 year old water!

Post by **Axolotl** » Fri Nov 24, 2006 10:25 am

Makes a change from breathing 40 year old air from the tyres

.

Post by **Kevin** » Fri Nov 24, 2006 4:59 pm

Why not source a source manual washer, undo the rear plastic crimped on assembly and modifiy so that the button now pushed an electric switch ?

It much easier to just buy the correct type of elctric switch as I suggested
I know holdens do one but its £16 + Vat
another alternative
http://www.nfauto.co.uk/all_switches.htm