Yeah, I'm not sure now. I took a quick look at some old pics when I took my 83 apart and the TVV is up in the thermostat housing, so my pic with the notes on it is wrong (in at least one area).

I'll take a deeper look into my old pics when I get a chance.

I do think the long snout sensor is for the EFI though. It fits into the dry thermowell near the back of the head. The beveled nose is supposed to bottom out in the hole for good thermal contact.

Okay, we’ll I just removed it from the thermostat housing. I guess the PO had stuff in the wrong place.


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What goes in here?  Maybe the vacuum switch?

What goes in here?  Maybe the vacuum switch?

It appears to have a hex plug in there



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My '82 housing had the TVV in it. 

1 hour ago, siteunseen said:

What goes in here?  Maybe the vacuum switch?

I wish i took pictures from before I removed that engine from the car.  I probably am totally wrong, but I want to say that the valve cover breather goes into a fitting attached to that, as opposed to the earlier valve cover breather to throttle body. 

eh nevermind, maybe from one of the coolant lines from the water jacket on the other side of the block?

 

I think this might be the accurate configuration.

 

BTW, the large one is the thermo time switch because I won’t fit in the head location. This set-up looks to match the publications.

 

 

 

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So after some research in the 1982 FSM (same year as my engine). The thermostat housing has an extra sensor. I’ve circled it in the photo below. This sensor is connected to the blower fan that goes over the valve cover which attempts to cool the intake to prevent the hot start problems these motors have due to exhaust manifold proximity.
I think I’ might just get a 280z housing and sell this one online or just leave it disconnected because I don’t intent to use the blower.



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This is off a '79. Very different it looks like?  This one didn't have injector fan over the valve cover.

 

This is off a '79. Very different it looks like?  This one didn't have injector fan over the valve cover.

 

Interesting that there were so many minor changes. I discovered while researching this that ZX series cars had many more small changes than the 280Z series.

I’m going to my yard with the three 280z’s and a the 240 this week. I’m going to grab a housing out of there.

If anyone has a request, please let me know. These 4 cars are mostly untouched so it makes for a great place to get hard to find or expensive parts.


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So today was the plan was to get my oil pan cleaned up, painted and installed on the engine. Many thanks to Wayne on the forum who graciously donated an oil pan to my cause. He told me he donated oil pan from a 1977. I need a new pan because mine has some serous dents and what I thought might be a small penetration, from the yard banging it around. So when I was out cleaning these oil pans this morning I noticed that the ZX will is significantly different than the Z pan. I was wondering are there any serious compatibility issues that would forgo me being able to use this Z will pan on a 82’ F54 block if anybody knows please let me know before I sand, prime and paint this 77 pan. thank you. See pics. 77 on left 82 on right.


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Difference is to clear the different cross member (and power steering bits).

Edited February 10, 20205 yr by 240260280