New to the family. Many questions. 1983 with Z24 2WD

[MGTS 39]

Well I see that whatever is supposed to toggle the clutch switch is missing. How often should I replace the O2 sensor? Where is the water temp sensor, and where is the temp gauge sensor. I want to make sure those are pugged in. The temp on the dash hasn't been working. Yea secondary is always bigger. I know that much from doing my Land Cruiser carb

[datzenmike 38,314]

Temp gauge sender is just below the thermostat on the intake and has a single Yellow/Black strip wire to it.

 

The temp sensor is listed as being on the intake, which doesn't help much. Look near the gauge sender, it will have a plastic end and a plastic plug in with two wires..

[MGTS 39]

Is this the speed sensor? I can't make sense of how it works

[datzenmike 38,314]

Probably. Does you speedo only go down to 10 MPH? Then most probably.

[MGTS 39]

If it is the speed sensor, what does it affect? How does it work? It doesn't seem to make any sense

[datzenmike 38,314]

The one on my B-210 was to tell the emissions system to reset the BCDD.

[MikeRL411 3,265]

1 hour ago, MGTS said:

Is this the speed sensor? I can't make sense of how it works

 Looks like the odometer.

[datzenmike 38,314]

Yes. The switch closes when the needle drops below 10 MPH.

[MGTS 39]

Finally found it in the manual. It's a 30,000 mile switch. It's an idiot light for the O2 sensor

[datzenmike 38,314]

AHhhh haaa!

[Charlie69 5,959]

4 hours ago, MGTS said:

Is this the speed sensor? I can't make sense of how it works

I removed mine and if I remember correctly there is one I believe for 60,000 mile for something else.

[datzenmike 38,314]

Clean the EGR valve with wire brush.

[MGTS 39]

I haven't found another switch like that.

 

EGR is clean

[MGTS 39]

The driveshaft yoke that goes into the end of my transmission is phuked. Is it possible to get a replacement? I'm not finding anything online. Is there a part number?

[datzenmike 38,314]

The 720 is sold as a complete driveshaft assy for $900. The trans spline and transmission seals are all the same so any spline will work. I could only find the 521, 510, Roadster, 240/260/280z, 610/710 listed. Some like the B-210 are non serviceable U joints and don't come apart. (easily) The Nissan part is 37111-14600 about $70 (I think this is in Canadian $)

 

Best bet is a want ad for a used one...  https://ratsun.net/classifieds/category/9-datsun-parts/  ... 620 should work or 720 if you can find one but not the 4x4.

[Charlie69 5,959]

Check Napa or a good drive shaft shop for a repair sleeve.  Last option would be have a machine shop weld it up and then turn it to spec.  Be like a new one.  Used to do this for my 50 Willys truck it ate front yokes.