Help identifying parts required please

[Nigel Mulvey]

I got stuck into dismantling more of the engine bay today and while I was happily labeling away I realised there were a couple of parts that I do not have a clue about.

I have attached a photo with the two parts highlighted, I worked out they have something to do with the air-con because there are some connections to the rest of the system and I don't have air-con in the 240 nor do I have these parts.

If anyone can help me out I would be most grateful.

[Nigel Mulvey]

Wow, there goes another mature moment.

[2ManyZs]

Well, I can't remember the exact name of the two switches in the yellow box, but they are for the A/C system.

The other two are your fusible links for the engine harness. They should have a cover over them though or did you remove it? Did this car have FI at one time and has been converted to carbs?

[Nigel Mulvey]

Keith,

Thanks for your reply. I know that the engine currently in place is not original. However, the original engine was an L26 and would not have had FI. There were no covers on the boxes when I got the car - it was an unfinished (only just started) project.

Thanks again for the lead.

[2ManyZs]

Nigel,

The only reason I questioned the original induction system is that I have not seen the fusible links mounted on the inner fender like that except in FI cars. I know my 75 280 with FI and a/c had the same set-up as yours, just don't remember seeing the fusible links located there on even the late 260's here.

I'm thinking that the car might have had FI and has been converted to carbs. In which case, they might not even be needed at all as I think they were for something in the FI system.......

Have to do some more research on the microfiche since I no longer have my 75 service manual...

[Z Kid]

2 Many, over in australia i think the fusible links went into all the later 260's of which the production spanned a few years, my parts car had them, as do 2 other later 260's I've looked at, one in near concours condition.

[2ManyZs]

Z Kid, that's what I was wondering about. Since we only got the 260 for one year and you guys had them till 78, I was wondering when yours converted over to the Fuel Injection.

The first year for our FI cars was 75 with the 280, I was thinking your 260's converted to FI in 75 also, or were all the 260's equipped with carbs?

Our "carbed" 260's didn't have the fusible links like this so that was what had me confused.....

[Darylick]

Could someone tell me if the covers for the fusable links are available through Nissan Or somewhere else.

The cover I curently have are small cardboard boxes wrapped with racetape.

Darylick

[Z Kid]

To my knowledge, and its not that much, the 260's never came to Australia with the Fuel Injection, Just the crappy square top carbs for us

[sjcurtis]

Hi Nigel,

Just thouht I would throw in my 2c worth on the subject matter in your attached picture, inset in the purple square.

I know I am only rehashing some of the information already posted in the replies.

The support assembly behind the fusible link assemblies is commonly known as the Relay Bracket.

The items that have the fusible links looping out of them are commonly known Fusible Link Holders.

Both fusible link holders are essential loom requirements of the 75 and later 260Z/280Z wiring looms.

Fusible link colour BLACK size 1.25 mm.

Fusible link colour GREEN size 0.5 mm.

fusible link colour BROWN size 0.3 mm.

This is the correct combination of fussible links.

System Coralation for RH Drive Non Injected is:

Head Lamp System Brown

Turn and Signal Green

Hazard Warning Black

Stop Lamp Black

Clearance and Tail Light System Black

Reversing Lamps Green

Instrument Lighting Black

Interior Lights Black

Glove Box Light Black

Tacho Green

Water Temp & Oil Pressure Green

Voltage & Fuel Gauge Black/Green

Brake Warning Green

Charging System (through voltage regulator system) Black /Green

Heater Blower Black/Green

Airconditioner Black/ Green

Horn Black

Wipper & Washer Green

Cigar Lighter Black

Cigar Lighter Illumination Black

Clock Black

Demister Black/Green

Radio & Antenna Green

I know this list does not cover everything, but it gives you the basic idea.

hope this helps

Steve

:classic:

[2ManyZs]

Don't know if this will help either of you that are missing the covers, but look what I found on Ebay....:classic:

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&category=6763&item=1876063020

[Mike]

I think those two round modules to the left are part of the EFI system. They are driven by vacuum and will prevent the car from starting if the proper vacuum conditions exist.

You'll notice that the vacuum tubes run down to a plastic bottle just below.

I never totally understood the safety equipment surrounding my EFI system when I got it working. But, I had to analyze the whole system and these were part of it.

Basically, this is what I understood: The EFI system would not start properly if the engine did not have proper vacuum. If the engine suddenly loses power, vacuum will stop, and the electric fuel pump will also stop pumping fuel. These were the only things I could see that were capable of transferring vacuum into a computer signal.

I can also only imagine that the canister below was a reserve tank in case the engine sputtered (similar to an electrical brown-out), but, did not stop.