Zed Head

How about oil pump self-destructing? Or maybe the distributor shaft is dry. And, the quote above does not tell anything at all about the history of the engine. Happy to throw random guesses at you though.

Here's another one. This one played loud music for a "Hydropower" ad, then a silent video about Fredericksburg (why?) played.

Because I care. It's still out there. Don't get used to it. It just takes one guy who thinks his cough is no big deal. Seriously, sorry to be a downer. But those pictures make me cringe. Outbreak imminent. https://covidactnow.org/us/missouri-mo?s=1202293 Here's a better graphic.

In case anyone wants to look for the engine. Might raise its value. It's missing. Seem to be a lot of barns getting cleaned out suddenly...

Things seem back to more normal in early 70's Z auctions. That rejected $111,000 bid.... https://bringatrailer.com/listing/1971-datsun-240z-155/?utm_source=dm&utm_medium=email&utm_campaign=2020-10-26

When you open the throttle intake manifold vacuum drops. Less air would get pulled in through the hole, if it is a gap or hole, due to lower vacuum. The BCDD is a good place to look. It's under the throttle body. The crankcase is under vacuum also, from the PCV system. So any hoses that are involved with the PV could be leaking. Really, any hose on the engine, that's not a water hose is a vacuum hose. Get a spray bottle with water in it and spray hoses while it's squeaking. Should change pitch if it sucks in some water. Won't hurt the engine.

Has the engine had any work done on it? Always good to know the history of a car/engine. Your video was with the belt on. Should have done one without it, it will be fine for a minute or two. I'd guess something in the damper pulley area.

Actually it looks like the ad that autoplays is a video ad, but it's one of those that plants itself in the middle of a person's post. This one just played an ad for The Voice. @Mike Only posting because you said that autoplay is not allowed. If things have changed I'll stop compalining.

That's a $250,000 car... Good luck. It's interesting.

I managed to get a picture of the offending audio ad. It was for King 5 News. Here's the picture. It seems to be audio only. There ain't no ad where an ad usually sits.

It's out there now. https://www.autoevolution.com/news/barn-find-1976-datsun-280z-gets-washed-for-the-first-time-in-44-years-150616.html

Sounds a lot like loose crud clogging the inlet line screen in the fuel tank. The crud gets sucked on to the screen and clogs it then floats free when the engine dies. You might drain the tank and see what you find.

Good luck and be careful with it. Read the recent thread about the 31K 240Z, that's what my joke about value was about. If you want top dollar, you have to do what the collectors want, not what you think they should want. They're a finicky bunch. Everything that you do to it becomes part of its provenance. Keep every scrap of paper that came with the car, even the brown wrapping paper. Every part imprint on a piece of paper is like the Shroud of Turin.

Oops. Just kidding... I really don't know if being part of an AMMO cleaning products video is good for the resale. The high end collectors want a nice story behind the car. Don't know much about AMMO. Maybe they're the stuff. Good luck to him. https://www.ammonyc.com/

That's a $400,000 car. I watched the video up to the first ad. Too bad it got the undercoating treatment. Edit - wait, I just watched more video. They used the car as an advertisement for cleaning products. It's a $5,000 car now. Shame. Seriously, I bet they knocked $30,000 off of that car's potential price, if the goal was to sell it.

I found that spinning the pin in the bore loosened things up quite a bit. I used a lug nut on the end of the pin and squirted lube in the lock pin hole and the the ends, then just spun it for a while. If I was doing another I'd probably rig something up to spin and pull at the same time. Moving the spindle pin back and forth in the bore also helps, probably distributes the rust away from the pinch points. I also got caught by the pin being rusted in to the sleeve inside the rubber bushing. I found the the rubber would pull the pin back after I pounded it in. It was confusing for a while. "I know I saw it move but there it is where it started" WTF!".

Oh Canada. Did you put some desiccant in there with it? And mousetraps? Don't want to find fungi-covered mice when you unpack it in ten months.

Adding to zKars just-now post - That makes sense jonbill. But still doesn't really tell if there should be one or two for a specific distributor. Looks like one has a steeper advance rate than the other. 7 degrees in 500 RPM versus 5. Distributor degrees, 14 versus 10 in crankshaft. Maybe that's one spring versus two.

The picture shows an A and a B spring though. Always somethin'. The test would be how much unhindered rotation of the shaft is there with just one spring. The springs are there to balance the shaft rotation due to the weights moving. No spring should mean that one weight is just flopping around. Maybe the short slot weight doesn't move at all. The words imply that it doesn't move, maybe, "it does not leave clearance either at start or end"., but then why they do they show a spring? Confusing.

I don't know what all this means but... One says spring, one says set. And the 72 FSM shows the unbalanced slots. I alternated pictures and links, hope it makes it through. http://www.carpartsmanual.com/datsun/Z-1969-1978/electrical/distributor/240z/for-manual/to-aug-71/6 http://www.carpartsmanual.com/datsun/Z-1969-1978/electrical/distributor/240z/for-manual/from-sep-71/5

If I ever find a 240Z in a barn I'm going to just have the dirt it's sitting on carved out and placed on a trailer with the car on top and whatever happens to be on the car itself. Cleanup will be whatever hay/dust/dirt/droppings are blown off on the way to its new home prior to taking 300 pictures and posting on BAT.

I noticed that too. Here's the Green Monster, 21,000 miles. You can see the blue paint that Blue246 was talking about also. Dogpile!!

Just had another horrible noise episode, definitely from this site. I saw AK260"s comment and went to the beginning of the 31K Z thread and started re-reading. I clicked open Page 2 and about ten seconds later "too important to miss, tonight at 6..." blasted through the speakers. I should have muted and tried to figure out which ad was causing it, the little one that sits on top of everything at the bottom of the page so you can't read the words below, or the big one at the top of the page. Instead I just closed the tab and the noise stopped. So @Mike you said that you would never have autoplay ads on the site but somehow they have slipped through. Those marketing guys are persistent and clever. Probably better at internet stuff than the Russians. I'll try to figure out which visuals match the words if/when it happens again. I wonder if it's possible to have autoplay audio with no visual associated.

I think I found the key to verifying low miles. "Original cosmoline". 7:00. It actually is pretty impressive that they found some. I tried to work at a place that details cars when they came off the ships, before they go to the dealerships, and that stuff is everywhere. I didn't last, you have to be a human squirrel to do high speed car detailing.