Windscreen washer

[mutley]

Hi all,

In typical MoT fashion, while carrying out my pre mot checks, the simple things like brakes, lights, wipers etc, today for some unknown reason my windscreen washer has packed in.

Any ideas what to check first, (yes there is water in it!!) and probably a question for Kaz, what's the best way to get to the washer pump to test it ?

Cheers
Jim

[Kaz-kzukNA1]

Hi, Jim.

When you operated the washer, did you hear the motor sound?
If so, you just need to follow the washer tube behind the bonnet and disconnect it section by section to see whether there is any blockage or not.
Being as a washer system, there is a one-way valve on each side (driver/passenger) and this could be blocked if your washer tank was full of slimy bits.
The most obvious thing is the blockage at the washer nozzle by the residue of wax, coating, polish, etc.




https://lh4.googleusercontent.com/-WvGITfXGteM/U8RIs_D43TI/AAAAAAAAR2k/5CQdSuZ66T4/s640/IMG_00012.jpg https://lh4.googleusercontent.com/-RgSezASYENQ/U8Tw785oyMI/AAAAAAAAR28/-yfm33E3cZE/s640/IMG_00014.jpg
If you didn't hear the motor sound, then it could be related to the wiring, relay, fuse, motor failure, etc.
Just in front of the bonnet latch, you should be able to access the washer motor connector. It's quite tight space but you should be able to disconnect the brown connector.

In the worst case scenario, if you place the car on the lift, you may be able to remove the big radiator air flow shroud from the bottom without removing the front bumper or the radiator but I have never tried it before.
These photos were taken while the radiator was off so I managed to remove the shroud without removing the front bumper.

It's simple 2pin connector so you can check the voltage at the wire side of the connector when you activated the trigger switch.
If you didn't see 12V at the wire connector, then please check the fuse and the relay.
The fuse is #6 at the fuse box located at the vertical side wall of passenger foot area. The relay could be at different location depending on the year model but for your NSX, it is at the black box sitting next to the radiator upper coolant hose. If the fuse was fine, you should be able to feel/hear the click at one of the relay in there when the switch is operated.




https://lh6.googleusercontent.com/-nL4gOTI7-sI/U8WzIrqGW0I/AAAAAAAAR3k/VxPLefiGFoY/s640/IMG_00015.jpg https://lh6.googleusercontent.com/-_V7Eom_Z1tk/U8WzMeq7dVI/AAAAAAAAR38/a1uwuzucD58/s640/IMG_00018.jpg
For the motor, please remove the connector and simply apply 12V directly at the terminals. You may be able to see the +/- polarity marking on the motor body (if it was clean) but it doesn't really matter for a quick check as long as you disconnect the connector first.
I just use hand held small sealed battery for this kind of test as there is no GND connection through the motor body.

My recent blog covering the seized washer motor;
http://www.nsxcb.co.uk/entry.php?1315-Koyo-Rad-Cooling-Sys-Washer-motor-01

http://www.nsxcb.co.uk/entry.php?1316-Koyo-Rad-Cooling-Sys-Washer-motor-02


If the motor is faulty, I could order the European spec high press washer motor from Japan but all Honda offices are closed at the moment for their long summer holiday and I guess you need it now for your MOT....
If replacing the motor, you will need new rubber grommet and the sponge plate to fill the gap at the connector.


Kaz

[mutley]

UPDATE:

Everything checked, and it is indeed the washer motor that has died.

Jim

[duncan]

Hi,
A quick check in the parts manual shows that the pump has a non NSX specific part no. Putting that part No [38512-SBO-922] into Google gave the following page
http://www.currentcare.co.uk/Products/washer-pumps-and-accessories/washer-pumps/12v-direct-fit-washer-pump-03-011.html
Assuming the cross referencing to be correct, the part is common with an awful lot of other Hondas and other manufacturers, a potential e.bay price for a non-OEM one for a Rover 200/400 is under a fiver.

[Kaz-kzukNA1]

With 38512-SBO-922 (superseded to -J01), the outlet port is facing towards the right side of the car and thus, not ideal for RHD NSX.
Also, it is very likely to be standard pressure spec and not for the European NSX model.





In fact, regardless of RHD or LHD model, for European spec NSX, you need NSX specific SL0 parts with higher pressure spec washer motor.



For RHD UK model, it's 76806-SL0-E11 and this is what Jim needs.


For LHD European model, you need 76806-SL0-G11.





Addition to the above high pressure spec washer motor, for both RHD and LHD models, you need


38519-SB0-003: grommet, washer tank to replace the old one and


38516-SA5-671: packing, T type to seal the gap at the base of the terminal on the washer motor body.

Above three parts were the ones that I used for another owner as you can see in the above link to the blog.


Jim, if you need these parts and if you can wait for the delivery from Japan until after the Bank Holiday (all Honda offices in Japan are closed for holiday at the moment), I'll be placing the order on Monday for other owners so please let me know.



Kaz

[duncan]

My apologies, the part number came from a US parts list.
Shame as the OEM lists out at nearer £50 rather than £5 for a pattern part.

[NSXGB]

They do list the euro spec washer pump on the Acura Parts Warehouse site for about $30.

[britlude]

Shame its more awkward to get stuff out of Americee....

[mutley]

As the car is in with the dealer, I just told them to add it to the things that needs done.....might have to re-mortgage at this rate !!!!!!

Jim

[Nick Graves]

I hear a Halfords job for some Peugeot or another works OK on the S2000 - it's likely it may be another possibility.

Headlamp washer's a different matter entirely...expensive!