4 minutes ago, jfa.series1 said:

Any proximity to the thyroid gland? 

Autocorrect can be a PITA!!!

Using  a British/Canadian term https://en.wikipedia.org/wiki/Cable_gland

btw Happy Thanksgiving ?

better photo

Since it is a 73, there is this for the Nissan modification to add an electric fuel pump:

Start at page 14 in the attached document.

1973 240z 1974 260z fuel system modifications.pdf

Nice...! So what exactly is it...? 

This was definitely the one on the firewall...

3 minutes ago, Tirnipgreen said:

This was definitely the one on the firewall...

If you don't have flat top carburetors, you don't need it.

Here is the description: (also see pdf in this post)

https://www.zdriver.com/forums/240z-260z-280z-s30-forums-9/firewall-relay-help-40760/#post340094

throttle Opener.pdf

Apologies, my information was incorrect. Those two relays look very similar, including the wire color. Looks as if you're in good hands though........

 

 

 

 

Thanks to ALL...!

I think I would still like to have a new one under the hood for authenticity's sake. Steve knows I am not using flat tops as my car was retrofitted with roundies during the ongoing bouts with vapor lock back in the day. Does it make sense to install an electric fuel pump...? 

Polish yours then zinc plate it

To find a new one is unlikely.

After several years of observing e-bay, etc. I found a very nice one for my 73.

Philip's suggestion that you clean, polish and re-plate yours is a good solution. The metal housing can be removed easily by prying the retaining tabs up from the backplate. Yellow zinc plate should be used. 

As SteveJ states, without the flat tops you don't need it-----for you it is cosmetic.

Edited October 12, 20195 yr by Zup

So close. I could put the male plug on it and it would do just fine. 

I do have the right relay (but its ugly), so I can either exchange housings or just put a plug with new male pins and new shell and even get the right pin in the right position using the correct relay as a guide. 

Edited October 12, 20195 yr by zKars