View Full Version : Windscreen washer pumps

05-08-14, 11:42 AM
Wondered if anyone has any ideas were im going wrong.
Iv moved the washer bottle to the boot,but a single pump isn't strong enough to pump the water the length of the car and on to the screen.
So with Fads idea from a while back iv fitted 2 pumps, one in the boot by the bottle and one just under the dash and it works a treat for a while, but arfter a time one of the pumps burns out, its normally the one under the dash.

Iv fitted a non return valve just before the pump under the dash and another one just arfter it, and have wired it from the switch to the under dash pump,then from that pump to the one in the boot.

Wondered if anyone has any ideas were im going wrong, before putting the bottle back in the engine bay


phunkie hiboy
06-08-14, 08:52 PM
Windscreen washer reservoir is in the boot of our roadster and works fine. It's a rear screen washer assembly from a fiesta.

07-08-14, 07:23 PM
Thanks for the reply
Have tried something different this time, hopefully it'll be ok

07-08-14, 08:34 PM
Captain, a single pump should be able to pump from the rear to the front without issue, you shouldn't need two. I would revert back to one pump and fit a non return valve. Loads of cars have this arrangement for rear screen washers where the pump is in the engine bay, so basically the reverse to what you are doing. Can't comment on why one pump is burning out unless the rear most pump is actually restricting flow and the front pump is drying out and over heating.

07-08-14, 09:08 PM
Thanks stilltrying, it's funny really cos it used to have a rear screen wash with the bottle in the front
Have tryed a single pump, but the bottle is quite low in the boot and has to pump over the rear wheel arch lengh of the car and back up the fire wall, but it just comes out a dribble :confused:
Does work a treat with 2 pumps, it's just that one pump doesn't seem to last to long
Might try mounting the bottle a little higher, should be able to mount it on the rear arch so it wont have to pump over it

07-08-14, 10:13 PM
I'd put the two pumps side by side at the rear(In parallel, next to the reservoir,I assume you have them in series )I have done that before and it's always worked,
I would also say the Marina/Lucas ones had a lot more power than say Ford ones.
Unfortunately It's not the 80s so goodness know where you'd get them now

07-08-14, 11:50 PM
Thanks dirth, a mate suggested doing that, but havnt tryed it
If the pump burns out again gonna try that next instead of moving the bottle
Can find lots of different ones on e-bay, expert at searching for them now :)

08-08-14, 09:25 AM
I once used a Volvo Truck Bottle( gallon + in capacity) and pump in the back of a Mk 1 Escort feeding the std jets and the wiper blade type jets.
I can't remember what commercial (or series of)had a pump that was on the floor like a dip/switch and was electric free

08-08-14, 05:22 PM
truck ones ford d series had manual pump on floor

08-08-14, 08:12 PM
Sounds like an idea, no hassle with electric pumps then :)

08-08-14, 09:41 PM
I have had several cars that run a rear wash wipe from the pump in the front. So it must be fairly simple to run a front W W from a rear mounted system, or am I missing something?

08-08-14, 09:55 PM
Normally have trouble with the simple jobs, and the hard jobs, and the inbetween jobs :), although normally get it figured in the end.........after braking a lotta stuff :)

Your fault anyways Fad, you gave us the idea and it does work a treat......... till it stops