Electric Pump Washer Line Check-valve!

Tim Donahoe

Hello, everyone.

I'm about to install an electric windshield washer pump into my 1974 Super Beetle, and I want to install a check valve into the line from the pump to the nozzel.

Someone on here did that trick, but I can't remember what kind of check valve he used (car make, year, etc.).

Anyone who ahs done this conversion, know which check valve will work?

Thanks,

Tim

Multi69s · Posted: Wed Mar 19, 2014 1:18 pm Post subject:

Tim,

Why do you want to use a check valve? When I converted my 69 years ago, I just used a straight through system with no check valve. It has been on the car at least 15 years and has never given me any problems. It may have even been longer then that. I bought the car in 87 and it has been my DD ever since.
_________________
69 road Bug 2110
73 Squareback - 2L, T4, Automatic W/ AC
Gone, but many fond memories 69 Baja Bug 2010 - 5 Rib Bus Transaxle
Gone but not forgotten 72 Baja Bug 2010
My builds
T4 into Squareback http://www.thesamba.com/vw/forum/viewtopic.php?t=458944&highlight=
Auto Trans Rebuild http://www.thesamba.com/vw/forum/viewtopic.php?t=516066&highlight=
AC in Squareback https://www.thesamba.com/vw/forum/viewtopic.php?t=...highlight=

ROCKOROD71 · Posted: Wed Mar 19, 2014 1:28 pm Post subject:

I agree, I don't see the need for one. Just ran the hose from the pump straight to the washer nozzle. No issues. I used an VW Mexico electric washer kit. Not sure what you are using Tim...
_________________
1971 STD BEETLE- DD-1st car, 1st love. keepin' it stock! 1600DP, Solex 34-3 Mexi Bosch SVDA Dist NOW w/POINTS
1977 WESTY "KrustyKamper" 2L FI

Joel · Posted: Wed Mar 19, 2014 1:28 pm Post subject:

It may have been me, I just got one from a car at the junk yard, pretty well all cars built in the last 25 years have them.

It's to stop the water draining back to the reservoir so they start spraying instantly.

Its important on later bugs with the wash wipe function where the wipers start operating when you wash the windscreen so they blades aren't running across a dry windscreen, that is what wears your wiper motor out.
_________________
Quick little bug, you got a Porsche motor in that?
1974 Germanlook 1303 2.5 Suba-Beetle

Multi69s · Posted: Wed Mar 19, 2014 1:39 pm Post subject:

Joel,

I can see the logic in that. Since my 69 did not have that option, the washer is hooked up to a push button switch. So I give it a squirt before I start the wipers.
_________________
69 road Bug 2110
73 Squareback - 2L, T4, Automatic W/ AC
Gone, but many fond memories 69 Baja Bug 2010 - 5 Rib Bus Transaxle
Gone but not forgotten 72 Baja Bug 2010
My builds
T4 into Squareback http://www.thesamba.com/vw/forum/viewtopic.php?t=458944&highlight=
Auto Trans Rebuild http://www.thesamba.com/vw/forum/viewtopic.php?t=516066&highlight=
AC in Squareback https://www.thesamba.com/vw/forum/viewtopic.php?t=...highlight=

Joel · Posted: Wed Mar 19, 2014 3:22 pm Post subject:

The later ones do have a delay built into the relay, it sprays for about half a second before operating the wipers but it usually takes the pump a good 2-3 secs to get the water from down at the spare wheel well up to the washer nozzle.

the stock air ones are usually instant as the water is already pressurised to the wiper switch so doesn't have far to go.
_________________
Quick little bug, you got a Porsche motor in that?
1974 Germanlook 1303 2.5 Suba-Beetle

Tim Donahoe · Posted: Wed Mar 19, 2014 3:34 pm Post subject:

I think Joel was the culprit. And I agree with his logic.

When I press the switch, I want it to squirt right then and there. Not two or three seconds after.

Still, if no one knows what check valve to use, I don't know how I'd root around and find the one I want--one that would fit my line, anyway.

Tim

Joel · Posted: Wed Mar 19, 2014 7:54 pm Post subject:

The vast majority of cars use 4-5mm washer hose, you just need to make sure its a straight in/out as many cars use it as a splitter for separate left and right washers.

you could go to a dealership and ask what they have as the non return valves are a consumable item as they often block up with rubbish from the washer bottle and stop flow.

its also worth searching on ebay, I just had a quick look under one way valve and non return valve and several universal ones came up for a under $10.

this is in Oz but I'm sure you could find something similar on US ebay.

http://www.ebay.com.au/itm/WINDSCREEN-WASHER-NON-R...43c6ddbcdc
_________________
Quick little bug, you got a Porsche motor in that?
1974 Germanlook 1303 2.5 Suba-Beetle

Tim Donahoe · Posted: Wed Mar 19, 2014 8:51 pm Post subject:

Thanks, Joel.

I sure hope the valve has a direction arrow on it.

Tim

Joel · Posted: Wed Mar 19, 2014 8:54 pm Post subject:

They always do but even if they didn't you can soon tell just by blowing through it, the side you can blow through it is in.
_________________
Quick little bug, you got a Porsche motor in that?
1974 Germanlook 1303 2.5 Suba-Beetle

Al Capulco · Posted: Wed Mar 19, 2014 11:11 pm Post subject:

If you still need one let me know. I'm sure I have an extra one in the garage you can have.

andk5591 · Posted: Thu Mar 20, 2014 3:07 am Post subject:

Hmmmm - have done conversions on........5 cars. 3 with the VW reservoir pump and 2 with a generic pump and tank. Unless they have a check valve built in, not noticing any appreciable delay in the spray. I mean hell, the tubing is really small (low volume) so till it fills from the pump, what is it? Maybe a second? Not seeing a need myself.
_________________
D-Dubya Manx clone - 63 Short pan,1914.
Rosie 65 bug - My mostly stock daily driver.
Woodie 69 VW woodie (Hot VWs 7/12).
"John's car" 64 VW woodie - The first ever
Maxine 61 Cal-look bug - Cindy's daily driver.
Max - 73 standard Beetle hearse project - For sale
66 bug project - Real patina & Suby conversion
There's more, but not keeping them...

Joel · Posted: Thu Mar 20, 2014 3:24 am Post subject:

If you just have a pump on a push button independent of the wipers then no it wont make any difference and the valve isn't needed but on later bugs like mine with wash/wipe where the wipers operate as soon as you start operating the washer then you don't want any delay.
_________________
Quick little bug, you got a Porsche motor in that?
1974 Germanlook 1303 2.5 Suba-Beetle

ROCKOROD71 · Posted: Thu Mar 20, 2014 6:27 am Post subject:

route the hose in a way that puts an arch into it closer to the nozzle. before I got my VW mexico pump I just used a Jetta pump inserted into the stock standard bottle. I used two fender bolts to route the hose with two arches in it to stop the line from draining all the way. It worked well unless I let the car sit for an extended period of time, then I'd have to "prime" it again. But that's why I got the VW Mexico pump, no issues since.

Check valve seems good too... Laughing

_________________
1971 STD BEETLE- DD-1st car, 1st love. keepin' it stock! 1600DP, Solex 34-3 Mexi Bosch SVDA Dist NOW w/POINTS
1977 WESTY "KrustyKamper" 2L FI

Tim Donahoe · Posted: Thu Mar 20, 2014 8:20 am Post subject:

Al, thanks for the offer.

Since my pump will have an independent push button, I've decided--from what others here have mentioned--that the check valve is probably not needed in my application.

Tim

Hyperspace · Posted: Thu Mar 20, 2014 9:22 am Post subject:

As long as my cars have one for the rear window nozzle (when applicable), I'm cool, the slight delay for the front washers are not as noticible as rears, so I'd say, no need, for this application.
_________________
If you can't fix it with a hammer, it is an electrical fault.

Photo's http://www.thesamba.com/vw/forum/album_search.php?search_author=Hyperspace&show_results=summary


Hello! Log in or Register \| Help \| Donate \| Buy Shirts	See all banner ads \| Advertise on TheSamba.com

Forum Index -> Beetle - Late Model/Super - 1968-up		Share:
		Print View

	Forum Index -> Beetle - Late Model/Super - 1968-up	All times are Mountain Standard Time/Pacific Daylight Savings Time
Page 1 of 1