310 Wiring

[SlowBoy]

I have been looking at the 310 schematics and have some questions

Are there color codes for the 310 wiring harnesses or are they one color?

If there are color codes, where can they be found?

Would you know if the schematic in the green 310 service manual is identical to the one in the red 310 service manual?

What years did the red and the green service manuals cover?

Thanks!

[Nissanman]

Are there color codes for the 310 wiring harnesses or are they one color?

Yes, the loom is colour coded.

If there are color codes, where can they be found?

The schematic in the red and green Service Manuals are supposed to reflect the colour codes.
EDIT: Ooooops, I lied, the wires aren't labelled

Would you know if the schematic in the green 310 Service Manual is identical to the one in the red 310 Service Manual?

I know the schematic in the green is not 100% correct and I don't have a copy of the red to compare.
If you can scan and send me a copy from the red S.M. I'll take a look for you

What years did the red and the green service manuals cover?

The red manual, I believe is for the pre '65 SP310, the green is is for the '65 only [Publication No. 43111 (911315)].
The '65 SP310 is usually referred to as the "changeover" model and it is shares almost everything with the '66 SP311
If you ask real nice, I can fish out the complete wiring loom and identify and document all the colours for you.
It is an Australian delivered car but I don't believe that would be an issue re wire colours.
I have mentioned before that I expect the '65 SP310 schematic to be very similar to, if not the same as, the '66 SP311 so most of the work on your part has already been done
Not quite warm enough for me to work in the garage just yet so I'm happy to work on the loom for you inside the house

[spl310]

The red cover manual is for the single carb cars, so the diagram is different. The green cover is for the dual carb cars - all of the green cover manuals that I have seen show 3 seat cars in their photos, so they were not 1965 only, at least not the 4 I own nor the other 3 I have seen. The diagram in the Wiki section is the dual carb version iirc (haven't checked in a while), and the wires don't show color codes. I don't recall the red cover version showing color codes either, but I could be mistaken. The wiring in the cars is definitely color coded. I have not seen a diagram for a true 2 seat 1965 1500 to comment on it. Rumor has it that it is very similar to the 65 1600 diagram.

[datsun1500]

I have 2 of the green manuals, the wiring diagrams are not color coded, it is the same diagram as the one posted in the wiki section. I was working on cleaning up the wiring this past weekend and could not find a color coded diagram. I called Sid and had him walk out to the garage and look at his car for me

[SlowBoy]

Apparently I had asked questions when doing the service manual PDFs as I found some notes.

1965's do not have a third seat
1964's have 3 seats, duals carbs & alternator
1963's have 3 seats, single carb & generator.

From the notes that would make;
the green 310 manual 1964
the red 310 manual 1963

So, here are the service book questions.

Does the red service book cover Oct 62 - May 63 1500s?
Does the green 3 seater service book cover Jun 63 - Jul 64 1500s?
Does anyone know what service manual covered the Aug 64 - Apr 65 2 seater 1500?

I checked the WIKI 1500 schematic and it is the dual carb alternator version, although it is marked 62 - 64. Now that I have both the red and green book schematics in my hand, I can see where they are different.

I will get both of these schematics off to you Nissanman. If you would, please take the time to identify and match your loom to the appropriate schematic. I will then turn it into a color schematic and post it on the 311s.

If we have a member doing a SP310 65.5 restoration out there, would you take the time to match your car harness (loom) against this schematic and note any differences? I'll use your information to make the 65.5 schematic and post it here on the 311s.

http://www.311s.org/PDFs/1966-67%20Dats ... 20rev5.pdf


Thanks!

[spl310]

To my knowledge Nissan did not make a shop manual for the 2 seat 1500 specifically. The mechanical aspects of it are essentially the same as the 3 seat dual carb car (different heater, but that was covered in a heater supplement manual, and a unique radiator and fan shroud are variations from the mechanical and cooling aspects of the cars). If I recall, Nissanman's car is a 2 seater...

[autoquick]

Going over the wiring on my '65 is one of the projects I need to do.
First difference in the wiring is positive ground. And a large white primary lead to the battery. But like I mentioned to others, the previous owner had cuts and spices all over the place. Even had a positive ground power inverter for the negative ground after market radio.

[Nissanman]

Progress to date: -
I have identified and tagged all the wires in the 3 looms for my '65 SP310, the Engine Bay loom, the Cabin/Dash loom and the Rear Chassis Loom.
As I suspected, it is very close to the Wiring Schematic Jim [Slowboy] produced for the 1965, 1966 SP311.
Even the wire colours are the same
As a matter of record, the 1965 SP310 2 seater wiring is nothing like the Red or Green FSM Schematics for the 3 seater version.
I still have a few mysterious wires to identify and I will then send a marked up Schematic to Jim for production.
The bad news is I have discovered that the majority of the OEM Niles toggle switches are KAPUT!
Don't know what I'm going to do about that.
I'd rather not dissemble them, I know what's going to happen to them if I do

[SlowBoy]

The bad news is I have discovered that the majority of the OEM Niles toggle switches are KAPUT!
Don't know what I'm going to do about that.
I'd rather not dissemble them, I know what's going to happen to them if I do

The good news is that usually one side of the switch internal may still be good. That would be the piece the copper connection rides on. This was the case with me. I then combined the good pieces to get working Niles switches.

[Nissanman]

NILES switches
Only the Fog Lamp switch showed continuity when operated.
I'm guessing that is because it has NEVER done anything, my car wasn't fitted with Fog Lamps.
Anyhoo, I had a can of CRC "Silicone Multi-use lubricant spray [Electrical Quality]" in my workshop so I thought, what exactly have I got to lose?
So I gave all the recalcitrant switches a good dose of the spray and worked the switch toggle lever to massage the internal mechanism.
VIOLA!
My continuity checker finally showed some, you know, CONTINUITY!
Barring a mechanical failure, it appears that I have brought them all back to the land of the living
So, now I am able to provide the electrical operation detail of all of the toggle switches
When I draw up the Wiring Schematic, I'll include a connection matrix for all the toggles so their function can be clearly understood.
I have a hand drawn version available now if anyone is desperate for that information.
Now, back to "enjoying" my Allergy issues

[autoquick]

Finally had a few moments to get the old camera out and photo the mess on my 1965 SPL310 Wiring. I'll have to document everything to get this back up.

Current wiring mess images

Got to love the 1500cc motor.

[spl310]

Wiring looks like most of the other roadster wiring rats nests I have worked on...

The seats look like nicely covered units with extra padding!
The old girl is coming along...

[Oncle-phil]

Hello, I was searching for some information on the wiring diagram of the 1965 1500 with positive ground and i found this old thread.
I was wondering if this diagram finally came to fruition?

[Nissanman]

I don't have a complete schematic but I have drawn up some functional diagrams for the car.
For example here is the charging system: -

1965 SP310 Charging System Schematic.jpg

I have others for various sections of the car so let me know if you need any more

[Curtis]

https://kendo-usa.org/datsun/63_64_spl310_schematic.pdf

https://kendo-usa.org/datsun/65_spl310_schematic.pdf