Early vs. Late 260Z Fusible Links

[JP]

Keen to get back onto the Z project after taking a while off and have been combing through wiring diagrams.

 

So the only wiring diagram in existence I can find for the RHD 260Z has a single pair of fusible links, where as I have a '77 260Z which has two pairs.

 

Seeing as there is no EFI relays, does anybody know what the additional links fuse?

 

 

[JP]

 

If it helps according to the early 260Z wiring diagram the links go to:

 

Battery -> (80A Fusible Link) ->  Volt. Reg. / Shunt / Alt / Acc Relay / Fuse Block / Comb Switch -> (40A Fusible Link) -> IGN Switch

 

 

According to a 280Z the links go to:

 

Battery -> (50A Fusible Link) -> EFI Relay / IGN Relay

Battery -> (50A Fusible Link) -> IGN Switch

Battery -> (50A Fusible Link) -> Comb Switch

Battery -> (80A Fusible Link) -> Volt. Reg. / Alt / IGN Relay / Fuse Block

 

 

Unfortunately my car is in pieces which makes it difference to verify, but I was unaware that any of the carb 260Z's would have had an ignition relay which is that only way this makes sense to me?

[JP]

Perhaps if someone with a '77 or a non EFI car with 2 fusible link blocks could be kind enough to take a photo of them, especially if the labels havent rotted away it would be a great start.

[Lynton]

I Hope these pics help

Lynton

[JP]

Great, Thanks for that.

 

I spent yesterday tracing the wires through the harness and it didnt make sense with 4 links, but it makes much better sense with 3!

I shouldnt have thrown them away so quickly.

 

Another question if you dont mind, under the fusible link bracket I have the voltage regulator and another relay which I dont know what its used for. It has a round plug and the black/yellow wire from the ignition switch runs directly to it. Do you have that too?

Im guessing an ignition/starter relay.

 

I also have a 4 pin round plug in the area which I think I have traced to the old A/C systems. Do you have this also?

I think its connected to those vacuum switches on the left of your photos.

 

Thanks again

[Lynton]

Attached are some more pics of wiring and my car does have air-conditioning. Hope this helps your investigation.

Lynton

[JP]

Thanks for the help so far!

 

Looks like a lot of it is for the AC.

 

If anyone knows what this guy is here in my picture next to the voltage reg it would be great.

 

I can only guess that the 7 pin round plug connects to it even though half the wires are missing and the colours dont match.

The real fun part is the starter wire from the ignition switch is the black/yellow that runs to the plug and never comes out again so I'm stumped as to how the old motor used to start. Probably a very obvious answer out there...

[JP]

I'm starting to think it is a starter relay, although im not sure where the power connection is.

 

The black/yellow wire comes from the ignition switch starter position, the green/yellow goes to the dash with a branch wire heading to roughly where the starter once was with a female bullet terminal on it.

 

Does anyone with a late 260z have a green/yellow starter solenoid trigger wire?

[JP]

I found an in situation photo here if that helps identification:

 

http://www.viczcar.com/gallery/displayimage.php?pid=846&fullsize=1

[RAP260]

On 1/8/2012 at 7:55 AM, Lynton said:

I Hope these pics help

Lynton

Hey folks

I know I'm bumping an old thread, but could someone please tell me what the left most fuse is for.

I've been googling for an hour and can't find the answer. I don't understand what CC is referencing. I've even looked through the service manual, but it only seems to reference colours, which don't seem to correlate to any images I've found. 

I'm asking because I've just realised that, at some point in the last 12 months, mine has gotten hot enough to melt the coating. 

Cheers, 

Rob 

Edited July 9, 2018 by RAP260

[LLN260Z]

1 hour ago, RAP260 said:

Hey folks

I know I'm bumping an old thread, but could someone please tell me what the left most fuse is for.

I've been googling for an hour and can't find the answer. I don't understand what CC is referencing. I've even looked through the service manual, but it only seems to reference colours, which don't seem to correlate to any images I've found. 

I'm asking because I've just realised that, at some point in the last 12 months, mine has gotten hot enough to melt the coating. 

Cheers, 

Rob 

Is CC meant to be ACC?

I think left fuse link is

ACC

IGN

Right fuse is

Headlights

IGN

[RAP260]

8 hours ago, LLN260Z said:

Is CC meant to be ACC?

Yea, I literally woke up this morning and thought just that. It's just that my label looks exactly the same, and I couldn't find an image of another label. 

 

Cheers, 

Rob 

Edited July 9, 2018 by RAP260