Manual Washer Jets and Non-return Valves

[Bordfunker]

When I bought my herald it had an aftermarket electric washer pump fitted, which promptly fell off the bulkhead as both of the plastic mounting brackets had cracked, so the aim has always been to replace it with a proper mandraulic pump as would have been fitted originally.

Having baulked at the cost of the pump that Rimmers sell, I went for the cheaper option from Paddocks which looks like it should do exactly the same job.

I also ordered a non-return valve to go in the washer bottle as the original one in the car has long since lost its ball bearing, however having assembled everything, I can't get this ensemble to actually work.

Here it is set up for testing in my home lab(read kitchen).

The white item on the end of the tubing is a non-return valve, and the tubes are set up with the feed from the washer bottle going to the feed marked 'J', for jar I assume on the back of the pump, and the other feed to the washers themselves attached to the 'S', for screen, feed.

The non-return valve does allow me to suck through it, but not blow, so appears to be working, however it does not allow the pump to draw water through it.

So firstly, have I actually got this set up correctly? I have tried assembling it all the other way around to no avail.

Secondly, if so is the pump just not man enough to overcome the non-return valve?

Has anyone else experienced similar issues, and if so how did you resolve it?

Thanks

Karl

[Pete Lewis]

Doesn't matter a hoot which way round you tube up the pump its a simple bellows, what you need it a non return valve tee peice to stop air  Sucking in from the open jets,  so itneeds a valve as you have on the suction pick up but also one for the output

Pete

[Bordfunker]

Pete, thanks for that, that's makes perfect sense now I think about it.

I did connect the new set up in the car, and it didn't work then, so I can only assume that the T-piece currently in situ doesn't have a non-return valve fitted.

Thanks again.

Karl

[Colin Lindsay]

You can also get all manner of tubing, non-return valves and t-pieces from aquarium shops / suppliers, far cheaper than car suppliers....

[Badwolf]

Karl. I converted my pump action wash/wipe switch to an electric pump using the original unit which had a broken pipe connector. Got through the mot with it and I am just in the process of literally road testing it before I post the instructions on my forum page. When I do, I will flag the heading so you can spot it and see if you can adapt it to yours

[dougbgt6]

The MOT man's apprentice once tried to fail my car because he didn't realize the windscreen washer was handraulic.

[Bordfunker]

Thanks for all the feedback guys, looks like in the market for another non-return valve.

Badwolf I'm going in the opposite direction to you, converting back from electric to mandraulic!

Karl

[Badwolf]

When the car was on the road before I had an electric pump with a separate push button to operate. I always forgot to mention it to the MOT tester who promptly failed it. That's why I started on the conversion of the original push pump to electric.  Appears to be working well at the moment, but the wiper switch has given up. Probably a loose connection but will investigate later. If the whole unit fails... back to the drawing board.