75 914/4 2.0

I removed the old tubes for the windshield washer system - all of them. Read the tech article about hooking up motor to the system. Seems very straight forward.

There was a spare tire line that ran to the washer container. I assume it pressurized the tank so when you wanted to squirt some cleaner on your windshield there was something to push the fluid out.

A tube ran out the bottom all the way to the column then went into some turnabout nipple thing and came back out to the nozzles.

My question:

Is that turn around nipple thing the "release" of pressure that will allow fluid to flow?

That means it's mechanical? Or is it? Just curious how it works.

I noticed that there also is a switch that makes contact in the steering column when you pull back on the wiper arm. On my car, the black/brown wire up front was just cut off and hanging out. I'm not sure if I have intermittent wipers or not. There's no sign of a relay of any kind on the brace where the wiper motor is. Don't know how to tell, unless all 75's had em.

Anyway, I'm hoping that black/brown goes hot when the wiper arm is pulled back, cause that's how I hooking the washer motor up.

I'm really starting to enjoy this thing... gets better each day.



Len

There is a mechanical valve in the turn signal stalk. I'm surprised we don't hear about leaking steering columns more often...

Yeah, but how many even have it working (old school tire pressure method).

That's what I thought, still not sure about the switch (electrical) that makes contact.

The intermittent wiper is an additional position further down (closer to the floor) on the switch.

When I had my 76, I discovered the same wires you are describing. And from what I remember, the electrical schematic for 75/76 showed a wiring possibility as well. But from what I remember, it was just one wire and maybe grounding occurred locally on the motor.

I modified a wiper arm with a little mini switch, I think it may have been an Up-Fixin Der Porsche article way back when. Anyway, I never wound up doing it.

Paul

I think that's because most people have unhooked the stock system by now, due to wet laps.


I am told that you can use a 924 wiper stalk and switch in the 914 column, and it has an electrical switch that closes when you pull back on the stalk so you can run an electric washer pump.

--DD

As a footnote, when Brad Mayeur spruced up my car he put in black silicone hoses that will not crack like the rubber. So I have the original pressure system in the stalk. So far no wet lap!

Paul

See the classic thread. Someone here (Sir Andy?). Did a photo shoot on installing the electric washer motor. Xplainsit all.

Does anybody have a link for that thread? Thanks!

http://www.914world.com/specs/tech_art.php

The key to doing the conversion is the switch. Reproduction switches are now available, can't remember the part number off the top of my heard. Want to say it ends with the letter H

I just had an electric washer pump motor installed in mine. I used a simple "momentary " toggle switch. It is a spring loaded toggle switch which you just push up to spray and release to stop. Works great. You do have to hit the wiper switch separately, though. Up on toggle to spray, hit wiper switch to wipe.

Anyone know the correct ID of the rubber tubing? I've searched and seen references to 3.5mm, 4mm, even 2.5mm. Which is it and are all the lines the same ID? Thinking of replacing it all with silicone as was referenced in post 6 back in 2013, but not sure what to order.

I set mine up the same way, with a momentary switch under the dash. Pull it towards you to activate the squirters and hit the lever for the wipers.

All this for a little squirt. Very cool.

questions: i have 74 2.0 teener.
my water squirter was working but i am going to get a sticker and the washer is not working. what what cause this....
I do understand the system.

"'the pneumatic windshield washer systen is incorporated; this operates from teh pressure from the aid in the spare tire. A CUT OFF VALUE in the reservoir cap ensures that the SPARE TIRE PRESSURE cannot fall below 29lb f/in2 (2.03 kgf/cm2)

this is the key and all has been checked. what should I check now.

actually i must recheck the valve.

i will report tomorrow thursday.

thanx 914 luva

Is the hose from the washer hooked up to the spare tire's valve stem?

Are the hoses from the reservoir hooked up to the steering column?

It's not uncommon for the washer system to be disconnected because the valve in the steering column can fail, resulting in a very wet lap when you pull the stalk back...

--DD

Problem: when i pull the washer switch towards me (trying to spray the windshield with cleaner) nothing happens.

how can i tell if the problem is not in the wiper washer switch?

how can i tell if the problem is not the cap in the reservoir cap? (to take enough air from the tire to push out to the sprayers) and yes the tire is at 29lbs.


what is the part number for the wiper washer switch? where can i get one? how difficult is it to get to the switch?


what is the part number for the cap in the reservoir? I already have that removed.
I cannot tell if that is working or not?

any help is appreciated. thanx so much

914 luva

The pressure in the spare tire needs to be greater than 29 psi. The cap on the reservoir prevents the pressure in the tire from going below 29 psi in the event you need to put the spare on the ground.

Unless you're looking for originality, consider installing an electric pump actuated by a toggle switch.

That is correct... and someday I will actually hook mine up!

This is what you need:
http://www2.cip1.com/ProductDetails.asp?Pr...4-111-953-519-G
But for whatever reason, many people here will tell you that drilling the dash and installing an ugly momentary switch, that doesn't trigger the wipers at the same time, is the way to go.
Do whatever works for you. You can search and find a thread on how to mount the switch and add a smart intermittent relay too.

hey guess what guys i was not putting enough air in the tire. i was puttting 29psi but i gót a tip here to put 43 psi and bingo it worked.

thank you all so much

This was my solution to the toggle switch for windshield squirters. Three covered toggle switches. Left one is on/off for fuel pump, middle one is momentary for starter, right one is momentary for washer, knob is trip odo reset.Click to view attachment Click to view attachmentClick to view attachment

Same question. What's a good replacement for the rubber hose?