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Old 09-01-2010   #1
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Washer jets modification (lots of pics)

I just recently bought a 2008 Grande Punto and enjoy it very much. But the washer jets on it is a disaster. They are really badly designed and to make it even worse, all three of them, 2 x front, 1 x back are fixed.

When driving, the front jets spray water onto the wipers and the water rarely makes it above the lower half of the wind screen. The huge drivers-side wiper blade, needs at least two dedicated jets, but only has one. Result is that 50% of the blade never gets properly "wet". When examining the bonnet panel holding the two front jets, you notice a third dummy jet in the middle. This could have been the perfect number two jet for the drivers-side wiper blade, but Fiat decided to make it a dummy. Why?

I couldn't stand it, so i decided to do some tests and mods to the front washer jets. I haven't tried the result on the car yet, but here are some pics for you to see. I modified the jets to try make them better. The result (in the lab) is very promising.

Here's the original front washer jet, pulled from the bonnet panel:







And a rear view shot:




I have two problems with these jets. They aim too low and the drivers-side jet spray is too narrow (horisontal wise) for the huge wiper blade. Both being fixed, i had to modify the nozzles.

TO WIDEN THE SPRAY HORISONTALLY on the drivers-side jet:

Here's a top view shot of the original front jet in action. Notice the narrow angle at which the water exits the nozzle. Imagining a clock, the spray covers from approx. 2:30 - 4:00 o'clock:



I decided to cut/melt the plastic on one of the sides of the jet. Being from Denmark and seated in the left side of the car, i need more water to the right on the wind screen, so i melted the right side of the jet just slightly with a small flat piece of metal, heated up by a candle. This is the area i "flattened" out / melted (the yellow area):



The result. Look how the water exiting, now covers from approx. 1:30 - 4:00 o'clock. I actually think this will work!:



Comparing them side by side, top most is the modified one:



TO ANGLE UP THE SPRAY on both jets:

Now on to the vertical problem. Both jet nozzles needs to be opened up upwards, but i've only done one so far, to be able to compare it with an non-modified one. This time i flattened out / melted this area with the hot metal piece:



Result. Both jets are shown here. The closest to the camera is the original, the furthest away the modified one. I tried to align them in the shot, which is hard, but the result is pretty clear. I think this will work too!:





My jet lab setup



I hope this is useable info for some. I will report back when i mount the jets on my car and test them on the road.

Notes:
I am quite sure that the new, widened spray will clear the bonnet panel.

I think the jet design on the new Evo is the same as the GP, unfortunately.

The bonnet panel consists of two parts, separated in the middle. They are held in place by two 10mm bolts, accessible from the underside of the bonnet.

To help future searches: sprinkler, adjusting
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Old 09-01-2010   #2
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Re: Washer jets modification (lots of pics)

someone has far too much time on their hands,

sure will be worth looking at when they eventually thaw out.
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Old 09-01-2010   #3
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Re: Washer jets modification (lots of pics)

http://cgi.ebay.co.uk/PEUGEOT-307-MI...742.m153.l1262

perhaps a mod with these would be worthwhile?
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Old 09-01-2010   #4
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Re: Washer jets modification (lots of pics)

seems like an awesome idea, might give it a go, how abot buying another jet from fiat and plumbing one in the centre?
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Old 09-01-2010   #5
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Re: Washer jets modification (lots of pics)

Or.... if you find the aim is too low, get your Dealer to carry out the Service News mod.
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Old 09-01-2010   #6
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Re: Washer jets modification (lots of pics)

Which is what.....
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Old 09-01-2010   #7
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Re: Washer jets modification (lots of pics)

Quote Originally Posted by custard View Post
http://cgi.ebay.co.uk/PEUGEOT-307-MI...742.m153.l1262

perhaps a mod with these would be worthwhile?
They are mist jets already they just hit the wipers when used above 15mph. You would have to cut a hole in your bonnet aswell to fit them as standard the scuttle covers them.
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Old 09-01-2010   #8
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Re: Washer jets modification (lots of pics)

Quote Originally Posted by punto_matt View Post
Which is what.....
A very simple tweak that doesn't involve modifying the jets themselves (seriously- would you be willing to fanny about removing the jets and melting bigger holes in them everytime they clog-up and need replacing ).

Aside from that, if it's under warranty it's free and you get a cup of tea/coffee while you wait. It's a win/win situation. PMSL
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Old 09-01-2010   #9
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Re: Washer jets modification (lots of pics)

Lets see if T can tell us what the modification is?
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Old 09-01-2010   #10
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Re: Washer jets modification (lots of pics)

Quote Originally Posted by D4nny8oy View Post
A very simple tweak
Is this a secret?

When i told my local Fiat garage about the problem, they promptly ordered "a replacement kit", no questions asked. The kit arrived and consisted of two new jets including rubber tubes. Looked like the existing jets and performed exactly like the existing jets - no improvement. Lifting the bonnet panel (bodge) didn't work either.

Quote Originally Posted by D4nny8oy View Post
(seriously- would you be willing to fanny about removing the jets and melting bigger holes in them everytime they clog-up and need replacing ).
Using a lighter and a needle or flat plier, you could do the mod now in less than 2 minutes without removing anything. But i am all ears to a better solution.
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Old 10-01-2010   #11
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Re: Washer jets modification (lots of pics)

Going to my dealer is hassle though!
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Old 11-01-2010   #12
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Re: Washer jets modification (lots of pics)

Amazing work Metrik.
Please return with pics when installed on car.

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Old 11-01-2010   #13
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Re: Washer jets modification (lots of pics)

Ok, first trip today with the modified jets. Windy conditions. Are they better? Yes they are, but not overwhelmingly better.

At stand still they tend to overshoot the wind screen. I expected that. Using small rapid pumps helps here.

At around 70mph the jets hits approx. 4" or 10cm higher on the wind screen compared to before. But wind / turbulence is still a major disturbing factor. The water beams are easily affected by wind, because the spray jets and the pump system is too weak.

The widened spray nozzles (left/right) does help overall - i get more water on the large drivers-side wiper blade, which is much needed.

Overall impressions? The mod helped but the system is still incredibly poor. We need a stronger beam of water and an adjustable one too. That will require a major modification.

Mads, thanks but no pics :-) They wouldn't bring any value into what i already said.
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Old 11-01-2010   #14
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Re: Washer jets modification (lots of pics)

i did the same using a needle file just a case of slowly removing bits of plastic till your happy
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Old 17-01-2010   #15
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Re: Washer jets modification (lots of pics)

i must have a malfunctioning set of standard washers as ive never had a problem with coverage etc . only the size of the resivour lol run out far to quickly
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