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I have recently fallen in love (metaphorically) with a smoke machine lately. Very good at finding leaks. Used it on gas tanks…. Mine has an internal compressor that build lots of psi in the system of choice. Reasonable affordable. Uses mineral oil. Bit hard to see small amounts of leaking smoke, have to use a bright light and lots of different viewing angles, it doesn’t make the huge volumes of dense smoke I expected, but still very effective. I also envisioned using a thermal imaging camera at the same time to show a visual map of the leak location, will report on that some day.

Hydrocarbon sniffers can be surprisingly effective across different systems, and sometimes combining them with a simple soap test helps confirm the source faster. Hope you track it down soon.

There's so much religion and hearsay around motor oils that I usually don't pay much attention. But I'm glad I watched that video. Guy actually applied science, credible documentable references, and theory*. I'm glad I watched that one. * Not just "Last year, my cousins boyfriend put <oil brand> into his small block and it wiped his cam. And stuff"

Yes, that plastic piece is a travel stop, and you should really have one in there. If that stop is missing, the lever travel could be too much and the rear adjustment system may not work properly.

Looks like a travel stop?

20251008_144110.mp4 We cobbled up some wiring and tested the tach. Now we have to figure out how to integrate it. Most 510's didn't have tachometers

It's former greenness is "clear" now. Seller posted a before picture.

Pretty sure I know the answer, but for confirmation's sake, I'll ask. First, the set-up. Just got a new Precision complete weatherstrip kit for my 1972 240Z. The door strips in the kit are quite a bit different from the OEM ones in that they have a "gripper" channel (see Photo 1) whereas the OEM strips have but a thin U-channel (see Photo 2). I believe this was a design change made for the 280Z. Both of these are meant to attach to the metal weld and quarter window flanges around the door openings. The OEM strip's grip on the flanges is then reinforced with a stiff U-channel (Photo 3) that covers all but a small section of flange along the bottom of the door opening where the inner scuff plate does the job In his book "How to Restore Your Datsun Z-car", author Wick Humble said (page 135) that the factory's 280Z-style weatherstrip comes preloaded with a "non-hardening adhesive/sealant in the "U" of the weld flange trim that was not previously specified." Clearly, the strips I got from Precision do not have such a preloaded material So, my question to you fine folks is this: Should I apply some kind of adhesive/sealant in the U-channel and, if so, what would you recommend? I'm already using 3M Yellow Super Weatherstrip and Gasket Adhesive on the rest of the car that needs such a material.

I saw that too...

I'm working on a knowledge post about the S30's automatic transmissions, and for that, I tried to update my document collection. Since I don't have any Auto transmission and don't plant to install one ever, it was obviously never a priority. So recently a few things arrived again from all over the world. Some of them are pretty cool and rare: First, a set of original Nissan Japan 3N71B Auto transmission service manuals from 1971 and 1973. They're not specific to this car, but they have some good general information about that specific transmission. I also got the English version of the earlier 3N71A transmission manual. This time specific for the 240Z. Nothing crazy inside, but good for some reference data if you're a nerd like me. Speaking of Automatic transmissions. I got this cool troubleshooting guide slider, which was issued for both the A and B transmissions by Nissan USA in 1972: The delivery also included some Mikuni triple carb-setup parts: And i also came across this Mikuni PH level gauge for 2 bucks, so I had to get it: It even came with a nice little operation manual leaflet and padded pouch: Then I also got this nice booklet called "Z-car" by driver magazine JP. It's basically a collection of all their S30-related publications from their monthly magazine. I still have to read through all of it, but so far it has some very nice stories, including the original designers of the car. The only downside so far is the overload of praise for Mr. K as the sole man behind the Z, which is of course nonsense. But as said, i only read two pages so far. Speaking of documents. I made a copy of that original Nissalco 240Z special service toolbox manual, as it was falling apart. And I have to say it turned out pretty good for my first attempt at something like this. I picked up a load of tool-related things yesterday and have a lot of pending orders. so stay tuned for another update soon.

BTW.. if you really want to put some fuel into a tank of anything/any machine, i use the fuel for 2 and 4 cycle engines used in gardening machines.. they stay good a long time, are more expensive but work the best and keep things not getting clogged up with varnish! The fuel out of the tank i put in the car that i'm driving at that time. (Often the 240z as it's used round the clock and also can run on bad fuel or old fuel.. i always say if i pee in the tank he will probably drive on that as well! 🤣 )

The project farm guy... YES, he's a good guy, always testing stuff BUT.. I can't listen to him for more than a few minutes.. He talks much TOOOO EXITED!! he shouts it out!!! (And keeps on shouting!) Do you know where i can listen to forever??? Tyrrell's classic workshop, Iain can speak to me for hours, and i'm still listening after hours! The P.F.Guy.. i would kill myself after 15 minutes, so he could learn A LOT of the way Iain speaks on youtube! Take a look at his work he's really good! Tyrrell's Classic Workshop - YouTube

Stumbled across an interesting video about zinc. The answer is at about 11:00.

Didn't mean to contradict you directly. There might have been something in the fuel that was left behind as a solid. Crystalline and solid are two separate things in the materials world. A solid can be crystalline but it doesn't have to be. Who knows, it might have been residual fuel stabilizer, left behind when the gasoline evaporated. Most of them are a witch's brew of chemicals designed to save the metals and the fuel. I took some chemistry courses! 🤢 https://www.lucasoil.com/pdf/SDS_Lucas-Fuel-Stabilizer.pdf https://defender.com/assets/pdf/sta-bil/safety_data_sheet_302110.pdf

If you need headlight buckets, I have a few.

My all-time favourite Bondo Queen was a Ferrari 275 GTB that appeared on the FerrariChat website several years ago. It looked so-o-o-o pretty (and cost the new owner about $1.5 Million at the time to make the pivot from 'just shopping' to 'proud new owner'). Nevertheless, he decided to commission a shop to make it 'even better' (including new paint, of course). Unfortunately, when the shop started to prep the body panels for said new paint job, they discovered evidence of filler in places where it shouldn't have been. Digging deeper (literally), they found that the entire nose was nothing more than Bondo. Up to 1" deep in many places. More exploration (excavation?) found deep pockets of damage that made one think that the car had fallen off the top level of an auto hauler and landed on its roof. The shop was stunned by quality of the bondo slinger's work, calling him an artist. When we made the transition from horses to autos a century or so ago, the method of transportation may have changed but the same shysters stayed loyal to the cause and moved from 'horse traders' to car retailers without losing a step.

I believe fuel will crystallize. I have a 56 beetle that was left with fuel in it. The bottom of the tank was full of ruby colored amber. Took a chisel to get it out...

But why do you expect to see detailed photos of a commercial, industrial process over and above the few PR photos that Nissan chose to show us? They gave us plenty of information about the product itself and a fair bit of information about the company and its various operations. As far as Nissan are concerned, anything more than that is really none of our business.

Need as many pics as possible at this point.

Leave it alone and keep keep an eye on the pre & post filters IMO.

Possibly change the system to a higher resistance coil? And get rid of one or both ballasts. Just a thought

I just re-ran the voltage drop test and its currently showing around 12 volts with the LED not blocked and I think 1.5 volts when the LED is blocked. I tried driving it around for 20 minutes to force it to fail but all I managed to do is annoy my neighbors by making a lot of noise. Why are there two ballast resistors? I'm assuming that I have a total resistance of 3.0 ohms with the three terminal resistor providing 1.3 ohms and some fraction of that on the middle terminal.

Interested -- if the price is manageable.

But I thought the inside is stainless steel/aluminum, no? If there's corrosion/rust but its running fine now, should I replace it? The pump is only a couple of years old. This is the one I got: https://www.amazon.com/dp/B00496VHGC