I have searched the other threads and did not get the answer I was looking for:ermm:. Does anyone have an accurate wiring diagram for the 1972. One that shows the heater blower motor, in line fuses etc... I am at wits end :angry:looking for wiring problems in my restored :tapemouth 72.

Thanks JLP

This item on ebay might be of help for an answer to your question:

Datsun 1972 240Z Factory Service Manual CD-ROM

This item on ebay might be of help for an answer to your question:

Datsun 1972 240Z Factory Service Manual CD-ROM

I have about 4 original sets of factory service manuals. The wiring diagram in those are very incomplete.

Hi Jerry,

There was a supplemental service manual for the 71 Z that went into quite some detail about the dash, heating, and electrical. I don't know how much of the info actually got into the later service manuals but I find it refreshingly complete and detailed. you can get it at

http://www.xenons30.com/files/1971%20FSM%20Supplement.pdf

BTW my dash, wiring harness, heater, and fuse box are spread out on my garage floor at the moment as I install a VintageAir AC. While out, I have been diligently tracing every circuit - ie finding the foglight switch connects, etc.

If you have a specific problem that's been dogging you, I can be a sounding board. My harness is about 99% original.

Hi Jerry,

There was a supplemental service manual for the 71 Z that went into quite some detail about the dash, heating, and electrical. I don't know how much of the info actually got into the later service manuals but I find it refreshingly complete and detailed. you can get it at

http://www.xenons30.com/files/1971%20FSM%20Supplement.pdf

BTW my dash, wiring harness, heater, and fuse box are spread out on my garage floor at the moment as I install a VintageAir AC. While out, I have been diligently tracing every circuit - ie finding the foglight switch connects, etc.

If you have a specific problem that's been dogging you, I can be a sounding board. My harness is about 99% original.

I appreciate your kind offer. The restoration of my car is beautiful but I am at wits end with the little problems that I did not expect. The rebuilt drive train has an issue and the proposed fix did not fix it today. I began to look into the electrical issues today and found the factory service manual electrical diagram wanting at best. Those are the major issues leaving a number or lesser problems. My hope was to get all the issues repaired prior to putting the car away for winter but I do not believe that will happen at this point. I have owned this car since new and have striped multiple Z cars. I have three complete wiring harnesses along with lots of other spare parts. I will check out the supplement you suggested and see if it helps. I believe that I am gong to have to pull the dash at this point, I hope it does not come to that. I will definitely use you as a sounding board and if you need I will try to help you if I can. Jerry Purcell

Hi Jerry,

There was a supplemental service manual for the 71 Z that went into quite some detail about the dash, heating, and electrical. I don't know how much of the info actually got into the later service manuals but I find it refreshingly complete and detailed. you can get it at

http://www.xenons30.com/files/1971%20FSM%20Supplement.pdf

BTW my dash, wiring harness, heater, and fuse box are spread out on my garage floor at the moment as I install a VintageAir AC. While out, I have been diligently tracing every circuit - ie finding the foglight switch connects, etc.

If you have a specific problem that's been dogging you, I can be a sounding board. My harness is about 99% original.

I have printed and gone over the supplemental manual and it will help me out. It does have explanation of the additional in line fused wire etc... not covered in the original service manual. Thanks JLP

What kind of issues are you having with the drivetrain?

What kind of issues are you having with the drivetrain?

Steve,

When I received the car it had a rotational clunking in reverse and did not want to stay in reverse. Les thought it was related to the shift lever that he had installed and that seemed logical to me. I went on a quest for a new shift lever and came up with what should be a correct "B" box shift lever from a 72 parts car. I installed new shift bushings and installed the shift lever with no change in the problem. The clunking speeds up with the speed of the vehicle, you can feel it through the shift lever and you do not feel it in the drive shaft. It sounds somewhat like a bad universal joint but seems to be in the transmission. Thoughts?

PS I posted another thread on this. Thanks Jerry Purcell

Hi Jerry,

There was a supplemental service manual for the 71 Z that went into quite some detail about the dash, heating, and electrical. I don't know how much of the info actually got into the later service manuals but I find it refreshingly complete and detailed. you can get it at

http://www.xenons30.com/files/1971%20FSM%20Supplement.pdf

BTW my dash, wiring harness, heater, and fuse box are spread out on my garage floor at the moment as I install a VintageAir AC. While out, I have been diligently tracing every circuit - ie finding the foglight switch connects, etc.

If you have a specific problem that's been dogging you, I can be a sounding board. My harness is about 99% original.

Steve,

I was able to find the supplemental manual on ebay and purchased it;) to go along with all of my other reference material. I appreciate your bringing this manual to light. It is interesting that the supplemental manual was published late 1971 yet my 1972 factory service manual does not include the updates on the wiring diagram.