Jazz rear screenwash nozzle

[culzean]

Just like to share a quick tip to improve the rear screen washing experience of your Honda Jazz !!!!!

Anyone who has ever driven a Jazz knows that whoever decided the position for the rear screenwasher jet to squirt must have been asleep at the time, it is hopeless, most of the screenwash liquid misses the wiper blade and runs down the rear door.

It can easily be re-positioned, all you need is a 10mm spanner (or a small adjustable spanner). Open the tailgate and slacken off the nut holding the jet housing to the rear screen, twist the housing so the jet now squirts across the screen at a more horizontal angle - try 45deg for starters - it works a whole lot better.

[RichardA]

Yes, its useless.

I wonder if was set up for LHD? I though Honda knew better then that (unlike VW)

[guest255]

I believe the idea is to wet the blade rather than the screen!

[culzean]

When you turn on the rear wiper, the wiper motor and the rear screenwash pump both start at the same, so it is not possible to wet the blade before the it starts to move. Its is almost as if the designer wanted to keep the blade out of the way of the screenwash fluid for as much of its stroke as possible. If the idea was to wet the blade then it didn't work because a good 80% of the screenwash fluid just whizzes down the LH side of the screen while the blade is occupied elsewhere on the RH side and runs down the rear door and bumper (it may help to keep our roads clean I suppose).

[guest255]

The idea of the fluid wetting the blade rather than the screen was something I picked up from another forum. Which to a greater or lesser extent is true. What I tend to find is the wiper and rear screenwash pump both start at the same time but the water seems to be delayed coming out so the wiper has already moved halfway across the screen smearing it in the process and its not until its on its return path that it picks up some water and then it seems to be okish.

What is needed is the water to start the instant the wiper moves then it should be fine. There are one-way valves that are put in near the end of the water supply that ensure there's no delay when the pump is operated but I am not sure whether there's one on the rear wash/wipe system on the jazz

[guest229]

I did some checking and found there is a one way valve fitted in the jet head so I doubt that fitting a further one way valve would help,however I am going to try it when I can get to my local accessory dealer. I think what is required is a good spray jet if such a thing can be located ------any suggestions? I have toyed with the idea of modifying the jet head with a jet from the front washers but have not tried anything yet.

[guest255]

Halfords have washer bits n pieces including washer jet's. Just a case of comparing the size of the honda one to the one in halfords for an exact fit.

Also the front washers tend to spray the water onto the screen are available from honda

[bill888]

I did some checking and found there is a one way valve fitted in the jet head so I doubt that fitting a further one way valve would help

Just a thought, but I wonder whether the position of the one way valve is important?

Would a second one fitted low down and closer to the pump work better?

[guest255]

The valve tends to be near the pump to stop the water from flowing back into the pump and washer bottle, so theres always water in the tubing

[culzean]

Even if you fit a one way valve to the rear screenwash tube, you are still  left with the problem that most of the screenwash fluid goes straight down the LH side of the rear screen while the wiper blade is on the RH side.  Trust me folks, just twist the nozzle around - it will only cost you 10 minutes of you time, and no parts to buy.  If you are not happy with the result just turn nozzle back to the original position and then go look for a one way valve.

[guest229]

Yep!

[guest255]

Something I noticed the other day. I used the rear wash/wipe and then the following day used it again and this time there was no delay in the water coming out.

It would appear that most people only use the rear/wash wipe now and again and the water seems to run back to the pump in that time.

Having said that my dads civic 02 doesn't suffer that problem. Water comes out instantly no matter how long it was last used.

[guest255]

This may seem a bit strange but the rear wash now seems to be working as it should be. Ive not done anything to it, but now regardless of how long it was last used the rear wash starts instantly.

[guest255]

Something I noticed on the new jazz is the rear wash wipe has two jets of water coming out of the one nozzle so you get an even coating of water across the rear screen.

[guest684]

Try twisting the stalk the other way.  Instead of the wiper moving while the screen wash is squirted you just get the screen wash squirting.

My tip:  First twist the stalk one way to squirt the washer fluid without moving the wiper, and then twist the stalk the other way only far enough to have the wiper move.  -you can expand on your repertoire of wiping moves from that!