I've got the standard AC unit... i have to say it was a Pain in the A$$ to install... i should have removed my passenger seat just so i could get more room to work with.. but i got it in and got it to work... i just hope i never have to do that again... lol

 

OK, ASA240Z I've got the same problem. The valve is no longer made, Two Nissan dealers tell me that the part below from courtesy Nissan will work.They had about a weeks delay getting it and my local dealer had it overnight for less. My local dealer ran the VIN on my car and said it wasn't compatible... she then called Nissan Tech support who told her it would fit and work. I haven't gotten it installed fully as of today, hopefully I'll finish it tonight. As to what I've learned so far... cut the capillary tube unless you plan on having it rebuilt. It is mounted to a plate on the bottom of the heater that is a bugger to get to! The upper hose was 1/2 inch to long and had to be cut to get the new one to mount to different mounting studs. If you have big hands take out the dash (watch the corners they snap). From the best I can tell the capulary tube works as a switch to make the heater semi automatic. If it gets to hot or cold it will open the flow of water into the heater core, my guess is you will just have to adjust the fan speed up or down after installing the new valve. Some one else suggested taking out the front seat, would make it easier!
http://www.courtesyparts.com/****-water-p-315702.html
$48.11 per phone conversation

http://www.datsunstore.com/product_i...roducts_id/694
$99.95 + $20.00 core charge

http://www.zcarsource.com/content/p/...ct_refurbished

$229.95 + $100.00 core charge

 

Products
------------------------------------------------------
1 x ****-WATER (27116-P6500) = $33.80
------------------------------------------------------
Sub-Total: $33.80
United Parcel Service (UPS Ground): $10.87
Total: $44.67

I ordered this from CourtesyParts.com a few weeks ago.
It wasn't the same, had to use different bolt holes on heater case and modify wire that works it.
It does work and doesn't leak....

 

I know this thread is over 9 years old, but I didn't own my Datsun 9 years ago.
I'm just now getting ready to do this procedure, and I want to make sure I don't mess something up.

I have a couple of questions:
*When you cut the coil/tube off the old valve, is there any chance of the coil/tube leaking from the heater?
*Can you elaborate a bit more on "I had to adjust the cable and push/ pull pins"?
*Have you noticed anything different in the way the heat and AC work after this mod?

Thanks in advance!

BTW, my car is a '83 N/A coupe.

 

The coil tube dowsnt carry any water.. it's safe to cut.. you will have to adjust the push / pull pins thst open and close the new. Valve.. once you get the new valve mounted. You'll see what I'm talking about.. I've had no problems with my heater since I did the swap and no more water on the passenger side floor.. good luck.. take the seat out.. it makes it easier work laying down..