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I amaze myself at my own stupidity sometimes. I literally reinstalled this plate 2 days ago and never realized it has the engine number on it also! Thank you. Good news - matching numbers!

If you decide to go with the old style York, you'll end up with something like this: https://tinyurl.com/yxl96a3o You'll have a "state of the art" 1970 A/C system and all the drama that goes with it. Jim and Cliff offered good advice to go with a new style rotary compressor. I have the new style on my Z and all removed components of the old 1971 York set-up sit in the garage. Good while it lasted, but soooo last century. Dennis

A little more good news as my local hero @zKars has located some good condition 75/76 doors for me in his warehouse. Minimal rust repairs required and no bondo/damage. They might actually be from the same production run as my car! The original paint looks to be the same "240 Green" as my car was! That would indicate to me that they were built at the same time probably (as I assume they painted several cars the same colour during production).

The dampers control air and fuel. At the bottom of the pistons, there are fuel metering needles. When the gas pedal is pushed the butterfly valves in the carb throats open. The incoming air lifts the pistons which allow more air and fuel into the engine. 20w oil is recommended by Nissan. I ran ATF in mine. The oil prevents the damper from lifting too fast. The delayed rise in the dampers temporarily speeds up the airflow and pulls a little extra fuel into the air stream. It functions as an accelerator pump. You really can't over-fill the carbs with oil. Any extra will be sucked into the airstream and burned by the engine. The primary fuel adjustment is in the float height. There are secondary mixture adjustments under the carbs that raise or lower the fuel nozzles.

I am blown away by the quality and engineering that went into this Zcargarage BBK (big brake kit) The kit was designed by stoptech engineers and Zcargarage from the ground up for the Z. I am sort of a guinea pig to see if consumers can install this kit. They have amazing detailed 40 page instructions. Which in the car world is rare. I’m stoked to get them installed. Kit comes with everything needed to install and retains stock parking brake and MC. Fits 15x8 wheels as well! So light!

In 2015 I cleaned then coated the fuel tank on my 240. Today I put a new screen in the low pressure glass filter that I use. Nothing even close to pink from the Red-Kote, yea for me!

We might be brothers!

Go back to @siteunseen pics. The top one shows the typical single idler pulley, the second shows the York compressor - its difficult to make out the bracket but its there. For reasons unknown, your car has a second idler pulley close to the fuel pump but the bracket and compressor are gone. Belt and suspenders??? As Cliff says, it makes no difference because the tin-can fuel pump would prohibit installation of the York mounting bracket. Recommendation: remove the two idler pulleys from your engine and start with a clean install of a late model A/C system - you really need it down in H-town. Just my $0.02 worth. PS - good looking engine compartment!

Well at least I’d know lol

You had a York but that newer style fuel pump wouldn't go on with that huge bracket holding the compressor.

I have all that Yorx crap in my storage building. It was dealer installed in 1972 but I would consider getting rid of it or whatever parts you may need. I'd go with a newer Gen Air system. EDIT: Vintage Air has the Gen system. Sanden is good from all I've read like Mr Arnett mentioned above.

Cool, I'll leave it as-is - thanks!

I've had the same one since cleaning the fuel tank on my 280 in 2011. My clear filter looks like new too so I'm not breaking out my wallet either.

Thanks Mark!! What a really great explanation! thanks for your time and expertise!! Tom

I should know better than to cruise TTT’s website... My car hasn’t even hit the road and I am already changing parts! The outer tie rods I bought from TTT a couple of years ago are great, but they have improved the design to include high clearance bolts. This is great as they run VERY close to the rims. I of course had to order the new bolt set... Old: New:

Guys pay thousands to get that look on their pick ups and here the expensive part of the rat rodding has already been done for you.

According to my notes and using the mount on both sides of the tail shaft housing for reference, your trans is a 77-79 wide ratio. 1st-3.321, 2nd-2.077, 3rd-1.308, 4th-1.00, 5th-.864

I think that little crack would only be a concern if it extended to the outside of the valve cover, besides it will be covered in sealant when you are done. Ask your powder coater to include the valve cover with a couple of other batches that are going into the oven before he coats the cover, it has been soaked in oil for 40 yrs and it will need to out gas in the oven for a while. If the cover doesn't get baked first it will out gas under the plastic coating and you'll have little bubbles popping up through the coating or at least that is what happened when I did it.

Done for now.

Install and instructions are a breeze. Rota 15x8-0 clear with ease. (Wats are on order)

Should accomadate 240-280z. Full kit. Comes with pads. I don’t know if you can pick other types? Includes everything. Even brake fluid.