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BigJimnyMeet (North) 2024 (12 Jan 2024)


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Blocked Headlight Washer Jet - Again!

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28 Nov 2023 21:17 #252444 by Soeley
It is not long since  I UNBLOCKED  my right hand headlight washer jet, and it is blocked again. My MOT is due on 5the January, so need to get this sorted. I have asked Martin via the shop to see if he can supply and for a price. Just wondering if it is indeed a faulty nozzle or something else? I have looked in the screen wash bottle and it looks clean with no evidence of any sediment or sludge in the bottom. The R/H nozzle is the furthest from the pump, not sure if that would make a difference in case it is a sediment issue?

I have never had to replace a windscreen washer jet before, let alone a headlight one.

I am leaning towards a faulty nozzle 

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  • DrRobin
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28 Nov 2023 23:15 #252445 by DrRobin
My Gen3 used to block its window wash jets fairly regularly and the first to clear was the passenger side as that was closest to the pump. The problem is the alcohol evaporators out of the jets andit just leaves water which just freezes.

I changed it round so the drivers side is first,plus bought a lenthof copper tube and wrapped it round the radiator pipe to hear the water before it sprays on the windscreen.

Now the windscreen clears very quickly.

Robin

2011 Blue Jimny SZ4 morphing in to a 2020 SZ5 in the next week or so.
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29 Nov 2023 08:55 #252447 by Soeley
I wish it was as simple as a frozen nozzle, but it was September when it first got blocked, and this time a few weeks ago when it was still about 10⁰.

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29 Nov 2023 11:33 #252457 by Soeley
Thanks to Martin and the BigJimny shop, a replacement nozzle is on it way.

Thanks for a quick service!

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  • Lambert
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29 Nov 2023 17:30 #252482 by Lambert
My bottle looked clean enough but it was creating slime somehow I think it's a bacteria, anyway I am now using autoglym screen wash instead of carplan and it doesn't do it anymore.

Temeraire (2018 quasar grey automatic)
One of the last 200ish of the gen3s, probably.
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29 Nov 2023 18:34 #252485 by Scimike
If you have not done so already try pumping through a few LTRs of water / detergent with the offending nozzle removed before you fit the new one. It's possible it's debris in the tube, a fast flush hopefully will eliminate this and not simply block the new nozzle.

Yokohama Geolanders, Sony head unit, NAUTILUS Air Horn, DRL conversion, Rear cargo space, Elvis Bobblehead, transfer Guard, Indian hanging Elephant, Koni Heavy track dampers, Custom SS exhaust, Voodoo Doll, Adventure Rack with LED ight bar, vintage ERIBA caravan usually attached (yes it's slow)
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29 Nov 2023 18:44 #252487 by Soeley
Just disconnecting the nozzle should flush it out as thier is no anti-syphon valve on the headlight washers as I found out whilst lying under the car 

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29 Nov 2023 21:33 #252491 by rogerzilla
You're not using hard tap water, are you?  That always blocks them due to limescale as it dries on the nozzle.

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29 Nov 2023 21:46 - 29 Nov 2023 21:47 #252492 by Soeley
No, we don't have hard water here. Never had washer jet problems before with any car and have never suffered limescale in the kettle.
Last edit: 29 Nov 2023 21:47 by Soeley.

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30 Nov 2023 13:50 #252498 by RainerK
Installing an in-line filter directly upstream the spray nozzle usually also solves this.

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30 Nov 2023 15:57 #252503 by Soeley
Good idea, do they do filters specifically for washer pumps? Just wondering if a generic on might restrict the flow too much?

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14 Dec 2023 13:26 #252873 by Soeley
I just got the 4 week reminder for the MOT from the Know Your Car app.
It gives rgives it might fail, I presume from actual failures.
It looks like 3 have fail on the offside headlight washer.


 
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