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So I have an update. My plating tank was a clear brown color. I decided to try to make a new solution using ZnCl. I mixed up a tank of that and tried to plate something without success. So I decided I would just renew my tank chemicals. I placed an order with Caswell and bought two 1.5 gallon kits. All mixed up it was about 4 gallons. My current requirements in my old solution had gotten pretty high. I assume this is from me having filtered out some of the solution components when I filtered my tank. The new solution is quite cloudy. So noticeably different. IT also plates really well. I added a cap and a half of brightener in my 4g tank and was turning out pretty nice plate at 0.17-0.19 A/squ in. I also added several rinse buckets with a gallon of distilled in each. One after the degreaser One after the pickle One after the plating tank and one after the blue chromate. I also added heaters in both chromate tanks set to about 80d F

It does appear that the graphed areas between the green lines marked in the 71, 72, 73 columns would equal approx 2600 or so. The 1971 column green markings claiming That 175 cars were “HS30L” and “HS30ZG” of the 3900 total HS30 cars produced for 1971. Likewise 1972 was approx 1200 out of 6500 were the L24 engined cars. “L”, “ZG” Further more that up to 80% of these L24 cars were ZG/HH …. I’m hoping I’m saying this correctly from KATS post several years ago. The source of the 80% number is unknown, and would be questioned if the production numbers were as poorly documented as what I’m reading. I would actually think it closer to 90% would pay for the zg model after jumping the additional tax hurdle of that time. Quick math shows at 80/20 ratio that KATS claims there might have been 470 HS30 L versions total for those 3 years. I we use the 90/10 that I think is possible then the 3 year total drops to 235 Deluxe or “L” models. Rarity never determines desirability for sure, but the argument could be made in my opinion, that the “unknown” to most HS30-L model is the 2nd rarest model of the z/Fairlady z model run…. Behind only the R version of the 432 For the last 45 years, I’ve always been attracted to the gnose version, only recently being made aware of the existence of the L version. Yes, I have just purchased a legit L that looks like a legit zg, but the glovebox says differently. Sunday morning ramblings If discussed in the past with this direction of thought please direct me there. I agree completely with HS30-H “Such is the mystique - and joy - of the Japanese market variants”

Even if it doesn't help, it's always good to have a spare ignition module ready to go. That original one is going to fail eventually, probably sooner after you get the engine to rev right. The typical parts failure cascade.

Where are you getting the figure of "175 cars" from for 1971? You seem to have left out the HS30-S 'Fairlady 240Z' ('HZS') model too. In my experience, it is safer - and better for everybody - if we follow the naming/coding structure of the factory, using their 'Katashiki' charts. They can be a little inconsistent if you track them through the different Nissan publications (sales brochures, service manuals, parts lists etc) but there is a logic to them which makes sense to me. Hence I refer to: *'HS30-S' Fairlady 240Z ('HZS') 'Standard' model. *'HS30-D' Fairlady 240Z-L ('HZD') 'Deluxe' model. *'HS30-H' Fairlady 240Z-G ('HZG') 'Grande Nose'/'Aerodyna' model. ...rather than terms such as "HS30L" and "HS30ZG" etc. Note that there are extra suffixes to denote such as Automatic versions too. This is just further conjecture, which is all well and good, but there really are no definitive breakdowns for the three variants of L24-engined models in hand yet. Kats believes - as do others, and at looking from what is left extant in Japan today as much as anything else - that the 'HS30-H' model was the best seller of the three. I'm inclined to agree. However we still don't know the hard numbers, so I believe it is a step too far to be putting numbers like "470", "235" and whatever else out there. Especially when you are extrapolating from a graph which was never intended to give such detail in the first place. Again, I'm going to point out that you have not included the 'HS30-S' Fairlady 240Z 'Standard' model. It would make a good candidate for rarity simply because its de-contented 'Standard' spec was a slightly ill-fitting piece in the jigsaw puzzle that was the Japanese domestic market lineup. So it had the L24 engine (meaning extra purchase cost and extra licensing taxation cost because it exceeded the two litre tax band) but came with a 4-speed trans and very few bells and whistles. Alongside it in the showroom would be an 'S30-D' Fairlady Z-L (conforming to the two litre tax band) with a 5-speed trans and all the bells and whistles (headlamp covers, radio, hubcaps, stopwatch clock etc, even carpets!) and it would cost the new car buyer less overall - and ongoing - than the 'HS30-S'. It hardly looked any different than the more expensive Fairlady 240Z-L, so it would perhaps have made a better choice than the 'HS30-S', hence painting the 'HS30-S' into a corner that made it a rare choice, I'd say. My advice is to just continue to research your car by looking at its details. There has obviously been a lot of customisation in its history, but you can pin down what is 'factory' and what is later addition/modification. Probably the best documentation of the car's original spec would be the Japanese title ('Shakken Sho') but I'm guessing it is long gone? You never know, some research into previous owners - particularly the person who originally imported the car from Japan - might provide some extra clues (it has been beneficial with my own Japanese market cars). Keep an open mind and perhaps don't try too hard to assign hard numbers where we don't know them yet. Fun isn't it?!

You might want to post a link to the ebay auction/for sale.

A little Mac Sabbath wont kill you. Especially with an Elvis impersonator and maybe 6 people in the audience.

Just slightly over 1/8"

Here's a possibility, that I understand in concept but don't know exactly how it would work. The ignition modules have a feature designed to cut current after a certain amount of time fi the key is left on. Maybe that is what is happening. When the current is cut a spark happens and the injectors squirt. Actually, the current would have to be cut three times for each click, so that would mean every 10 seconds. You should be able to see it on a meter. Of course, that suggests that the current comes back on again, so the feature is not one and done. It's more like a setting on an oven dial. The FSM says within 10 seconds and calls it a lock preventive circuit.

My very first 240Z that I purchased when I was in college: HLS30-59523 built in 12/71 and had an L26 Engine (SEE PICTURE) the car's original paint color was 115 Blue repainted Black and the car's whereabouts are still unknown. I 've been trying to track down this car for many years, but no luck so far. Last known location of the car was in Casper, Wyoming. Here are the rest of the 240Z VINs that I have owned or co-owned with my son on two father-son projects: HLS30-64733: 904 White w/ Black interior, matching-numbers; 4-speed; Engine # L24-81097 1/72 (with my son) HLS30-25734: 918 Orange w/ Blk int, matching #'s; 5-speed; Engine # L24-32875 3/71 (w/ my son) *in France now HLS30-40157: 904 White w/ Blue interior, matching #'s; 4-speed; Engine # L24-50262 8/71 *in Australia now HLS30-40970: 903 Blue w/ Black interior, L28 Engine, 5-speed 8/71 HLS30-34495: 918 Orange w/ Black interior, matching numbers; 4-speed Engine # L24-43894 6/71 HLS30-168152: 115 Blue Metallic w/ White interior, L24-176746 (non-original engine); 5-speed 7/73 HLS30-7184: 920 Gold w/ Blk int; was painted Red; L28 and the orig. L24-9707 block; restored to its 920 Gold 7/70 All of the cars on this list were sold. If I could ever buy back HLS30-40157, I would love to have that car back, along with my very first 240Z: HLS30-59523.

Done. Engine and trans installed. Several trips to the auto store later.

Swapped out a new friction plate on the Flywheel.

I just sent some out! My first plater sucked so I found another one . These folks look like they did better . Can’t wait to see the stuff in person . Quick turn around too!