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Washer fluid syphons out the headlamp washers

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Old Mar 27th, 2018, 09:42   #1
morsing
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Default Washer fluid syphons out the headlamp washers

Hi,

I replaced a headlamp wiper recently, and have had an odd problem since, as the washer fluid slowly drips out of the headlamp washer nozzles. I can't for the life of me see what would normally prevent this though, so what stopped it doing this for the first 29 years of its life?

Thanks
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Old Mar 27th, 2018, 09:51   #2
Clifford Pope
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There's a valve in the pipe from the bottle to the wipers.
I think it must be designed to require a minimum pressure to open - the gravity of the reservoir not enough, but overcome by the pressure of the pump.

They stick open, because of dirt, or in the case of the similar near the tailgate, shut. I've never been able to make a failed one work.
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Old Mar 27th, 2018, 10:09   #3
morsing
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Quote:
Originally Posted by Clifford Pope View Post
There's a valve in the pipe from the bottle to the wipers.
I think it must be designed to require a minimum pressure to open - the gravity of the reservoir not enough, but overcome by the pressure of the pump.

They stick open, because of dirt, or in the case of the similar near the tailgate, shut. I've never been able to make a failed one work.
Oh :-(

I will see if I can find some sort of replacement...
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Old Mar 27th, 2018, 22:11   #4
timetrip
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there a small type of diafram in side the valve which you can get apart carefully which needs replacing....
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Old Mar 27th, 2018, 22:47   #5
Stephen Edwin
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The valve is the Headlamp Washer T Piece. See Brookhouse
https://classicvolvoparts.co.uk/part...ent_and_Wipers
Probably cheaper from a Volvo dealer. See the Brookhouse delivery charge, and all Brookhouse prices and delivery charges are plus VAT.

It is always worth trying FRF Volvo dealer parts department of Swansea. They often save me money compared to non-dealer supplies. They deliver small parts by post for basically just the cost of postage.
01792 790066 or 01792 784272 - Quoting discount code: C3
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Old Mar 28th, 2018, 13:25   #6
Derek UK
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You might as well fit the proper one but you can get a non return valve for the single feed pipe from Halfords for not much money.
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Old Mar 28th, 2018, 17:48   #7
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Try cleaning the anti syphon valve before buying a replacement, they get a bit of dirt in them and stick slightly open,
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Old Mar 28th, 2018, 20:03   #8
Bob Meadows
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https://www.ebay.co.uk/sch/i.html?_f...alve+&_sacat=0

Above link for various valves:~ Just completed this on the rear wash etc.- I would also clean out the washer bottle as they can tend to hold scum after some time.
Regards Bob
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Old Mar 29th, 2018, 23:48   #9
morsing
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Lots of good advice here, will give it a go over the weekend.
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Old Apr 21st, 2018, 17:02   #10
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This has been fixed with a £1.89 T-valve off Ebay, thanks for the help.
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