If the choke and 2 wire fuel cutoff solenoid is a 3 wire plug ware does the green with white stripe wire go? "Solved"

[Doomedwalker]

If the choke and 2 wire fuel cutoff solenoid is a 3 wire plug ware does the green with white stripe wire go?
if anyone knows, i have been trying to find ware this wire goes there does not seem to be any plug for it on the harness.

info about the engine, 1985 Nissan 720 truck was originally sold in the Chiliwack BC area.

 

 

 

 

 

Edited October 23 by Doomedwalker

[datzenmike]

If you don't have air conditioning then I think the carburetor was swapped on from another truck that did. Just a guess but would explain the missing connection. 

 

No I have never seen that Green/White wire before. 

[Doomedwalker]

43 minutes ago, datzenmike said:

If you don't have air conditioning then I think the carburetor was swapped on from another truck that did. Just a guess but would explain the missing connection. 

 

No I have never seen that Green/White wire before. 

what about the carburettor indicates AC? the truck the engine was from had blocked of vents, so maybe it was deleted?

i have been trying to figure out what the green wire is for i cant find much on it, i am in Alberta Canada but the truck is from BC Canada.
thanks for your input.

[ggzilla]

A 1984 Nissan 720 might have been imported from Tennessee/ or from Japan

 

This looks like a microswitch setup. CAL 720 had an extra 2-pin connector with only one wire, i think it was for the fuel shut-off

1 hour ago, Doomedwalker said:

 

ase

[ggzilla]

The problem with wiring diagram is they show the colors for the wiring harness, not the wire color on the part that plugs in. The wire color on the part in many cases differs from the harness color. So the diagram won't necessarily tell you. A better way is to look for a 2-pin connector on the wiring diagram. Maybe the carburetor diagrams in section FE

[Sephakrid]

Does the green/white wire connect to the metal box underneath the secondary diaphragm? If so, that's the wire for the throttle valve switch. The switch actuates when the throttle closes, and is adjustable. I agree that it's part of the fuel shut-off system. 

[datzenmike]

Did not know of this change to the fuel shut off system. (only have the '84 FSM) The original one used a vacuum switch to sense extreme vacuum on high speed deceleration and a clutch and transmission switch to disable it if coasting in neutral or shifting gears. I agree it's some kind of switch.

[Doomedwalker]

11 hours ago, ggzilla said:

A 1984 Nissan 720 might have been imported from Tennessee/ or from Japan

 

This looks like a microswitch setup. CAL 720 had an extra 2-pin connector with only one wire, i think it was for the fuel shut-off

ase

yeah i just don't have anything to plug it into if the fuel cutoff is 2 wires and the choke stat is 1 wire.

 

 

 

[Doomedwalker]

11 hours ago, ggzilla said:

The problem with wiring diagram is they show the colors for the wiring harness, not the wire color on the part that plugs in. The wire color on the part in many cases differs from the harness color. So the diagram won't necessarily tell you. A better way is to look for a 2-pin connector on the wiring diagram. Maybe the carburetor diagrams in section FE

in the Haynes manual or a real service manual as i only got a Haynes manual.

[Doomedwalker]

11 hours ago, Sephakrid said:

Does the green/white wire connect to the metal box underneath the secondary diaphragm? If so, that's the wire for the throttle valve switch. The switch actuates when the throttle closes, and is adjustable. I agree that it's part of the fuel shut-off system. 

yes it does yeah, do you know how it would connect i dont have the 2 wire fuel cutoff yet i am still looking for my old one, if i cant find it ill buy a new one eventually.

 

[ggzilla]

For the same price you can get the Nissan factory manual. The main diagram is the same as the Haynes, but the factory manual has tons of other wiring diagrams. Keep watching eBay and eventually you will find a factory service manual for $40 or even less

3 minutes ago, Doomedwalker said:

in the Haynes manual or a real service manual as i only got a Haynes manual.

 

[Doomedwalker]

4 hours ago, datzenmike said:

Did not know of this change to the fuel shut off system. (only have the '84 FSM) The original one used a vacuum switch to sense extreme vacuum on high speed deceleration and a clutch and transmission switch to disable it if coasting in neutral or shifting gears. I agree it's some kind of switch.

yeah i have been trying to understand how to connect it, i have been looking for the fuel cut of solenoid for this carb since its been off for a number of years.

[ggzilla]

1 minute ago, Doomedwalker said:

yes it does yeah, do you know how it would connect i dont have the 2 wire fuel cutoff yet i am still looking for my old one, if i cant find it ill buy a new one eventually.

 

If your imported truck, and the engine that's in it do not match, your truck probably doesn't have the fuel cut-off system. Only a few 720s used that particular system, and it is not needed for reliable operation

[Doomedwalker]

1 minute ago, ggzilla said:

For the same price you can get the Nissan factory manual. The main diagram is the same as the Haynes, but the factory manual has tons of other wiring diagrams. Keep watching eBay and eventually you will find a factory service manual for $40 or even less

 

yeah i don't have more than 5 Canadian dollars to spend right now its a purchase that will have to wait.

[Doomedwalker]

1 minute ago, ggzilla said:

If your imported truck, and the engine that's in it do not match, your truck probably doesn't have the fuel cut-off system. Only a few 720s used that particular system, and it is not needed for reliable operation

 

i didn't import anything both these trucks were sold in Canada at some point its just in a different province than originally sold in.

[Doomedwalker]

if there is no place for that green wire i do have another carb without that part, i could swap that part in if needed.

 

 

 

[datzenmike]

Do you have air conditioning? 

 

 

I don't think these style electrical plugs were used on the '84 but they switched in '86. The '86 alternator switched to this style. Maybe your donor was a later '86 engine?

 

Built in Japan or Tennessee, technically an import. If your VIN starts with J it was made in Japan if I then assembled in USA.

[Doomedwalker]

29 minutes ago, datzenmike said:

Do you have air conditioning? 

 

 

I don't think these style electrical plugs were used on the '84 but they switched in '86. The '86 alternator switched to this style. Maybe your donor was a later '86 engine?

 

Built in Japan or Tennessee, technically an import. If your VIN starts with J it was made in Japan if I then assembled in USA.

doner was an 85, thats ware the plugs are from i swapped in the whole harness well at least most of it ill need to swap out rear stuff when i change the box.

yeah all three of the trucks i had here were built in japan as far as i can tell.



built in japan assembled in canada? i am canadian and these are canadian models as far as i can tell.

Edited October 19 by Doomedwalker

[Doomedwalker]

this is one of the best engine bay shots i got of the 85 when i got it before i pulled it apart i wish i had a better photo than this,
i was thinking could both the black wire from the plug and the black wire from the solenoid connected to that green wire?

Edited October 19 by Doomedwalker
spelling

[ggzilla]

No 720s were assembled in Canada. Either Japan, Tennessee or Taiwan

[ggzilla]

The micro switch wire connects to something on the body of the truck

[Doomedwalker]

3 minutes ago, ggzilla said:

No 720s were assembled in Canada. Either Japan, Tennessee or Taiwan

 

ok, must be japan then, 

[Doomedwalker]

2 minutes ago, ggzilla said:

The micro switch wire connects to something on the body of the truck

 

ok ill have to check the remains of the truck then i didn't see anything unless its like a ground connection?

[ggzilla]

No need to guess, if the first character of the VIN is 'J', that means Japan. Nissans assembled in far-flung plants like South Africa either don't have a VIN, or they have the country code other than 'J'

[ggzilla]

2 minutes ago, Doomedwalker said:

 

ok ill have to check the remains of the truck then i didn't see anything unless its like a ground connection?

Your guess is as good as ours