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The main challenge in the DOHC is that Nissan opted NOT to develop a transmission mount to deal with rotating the angle of the engine. Stock, it is rotated 12 degrees to the right. With the DOHC, it is rotated 12 degrees to the left. I guess if you're willing to plunk down $25K for the kit, you won't mind spending a few thousand more (I'm thinking around $10K or more unless you do fabrication) for the fuel injection and transmission mount. Hagerty MediaNissan DOHC Conversion Kit Can Make Your Classic Z Faster...The new Nissan DOHC conversion kit lets enthusiasts add dual overhead cams to several classics, like the 240Z.

Regarding the color of the steering wheel: I've always wondered what the "new" color was and it seems to me that most restorations get it a little too dark. I always compare against the 1972 brochure I've kept, and the photo I took of my 1973 240Z a couple of weeks after I bought it new. Of course, photo colors are not always accurate, and I've never had any judge question my (restored darker than these pictures) steering wheel, so it apparently doesn't matter very much. Cropped 1973 photo of my then new '73 240Z. Originally a kodachrome slide, digitized by Costo's Flordia lab a few years ago.

Thanks for the input! The dash is a big project and i think im going to spend my time on the body of the car for now and set this aside. More than likely ill buy a new one vs repairing this one. there are so many issues with this one its beyond saving i think. might get a cracked one with only a few cracks vs 100.

http://www.zcarblog.com/wp-content/uploads/2022/11/IMG_3902-1024x768.jpeg Happy 89th Birthday to our hero Peter Brock! You have been and continue to be inspirational to us Datsun fans worldwide. Here are a few pictures we enjoyed taking with you over the years: http://www.zcarblog.com/wp-content/uploads/2022/11/unnamed-1-1024x768.jpeghttp://www.zcarblog.com/wp-content/uploads/2021/11/DSC05510-1-e1637002594621-1024x1006.jpeg http://www.zcarblog.com/wp-content/uploads/2016/11/lagunaseca2004153-400x300.jpghttp://www.zcarblog.com/wp-content/uploads/2022/11/IMG_2311-1024x768.jpeghttp://www.zcarblog.com/wp-content/uploads/2021/11/IMG_9747-1024x768.jpeg http://www.zcarblog.com/wp-content/uploads/2022/11/sema-1024x1024.jpghttp://www.zcarblog.com/wp-content/uploads/2022/11/275435624_5253829184651694_278823018715978593_n.jpeghttp://www.zcarblog.com/wp-content/uploads/2024/11/314962664_499938492181328_4586337483149355287_n.jpg http://www.zcarblog.com/wp-content/uploads/2024/11/312177026_483959523779225_1687953212474383395_n.jpg http://www.zcarblog.com/wp-content/uploads/2024/11/382583804_692126209629221_266883468108368867_n.jpg View the full article

CO, I have to apologize on what I said about the barb fitting taken off the 260z balance tube. I went back and looked at the balance tube, the fitting I have with 27 tpi did not come from the balance tube, it was in the box of parts and I assumed that's where it came from. You are right, you know your stuff. As soon as I get the brake problem solved I'll get back to my mixture adjustment and vacuum leak. Jim

If it was mine I'd watch the play at the adjusting nut on the rod. Press the fork against the pressure plate fingers using one hand and run the nut in until you have contact with the fork with the other one. That would be zero play. Then back it off 1.5 turns. Easier to do the adjustment without the spring attached, since you'll be able to feel when you're on the pressure plate fingers. I've never done one but I think I understand what they're trying to accomplish. 2 mm of play between bearing and pressure plate when the slave clyinder is at the start of its stroke. Don't forget to check the pedal adjustment at the MC also. I've adjusted play there in the same way. Just max out the adjustment rod, being careful not to press the piston in to the MC bore, then back it off a bit. Another feel by finger job. And you don't need to remove the clevis you can turn the rod with a pair of pliers or a strong grip while everything is assembled.

Ready for my close-up Mr. de Mille…

$36,000

Thank you, Buddy.

Hi Bob: If you are still looking for a welder I would recommend Elhot Metal Fabrication. He is working inhouse at the Shop club on 6th Ave S. He has done rust repair on 3 of my cars over the last 20 years and he is top notch. Of course with 30 years of experience, he's not cheap. Cheers, Mark G

You are correct, I always has a very good pedal feel and then I did not. I think part of the issue is a bad check valve, and here is why I say that. I ran the check valve test with a vacuum gage installed down stream of the check valve in between the check valve and the brake booster. Warmed up the engine Let the vacuum gage settle down to about 45 mmHg or so (I think that was the number) Shut off the car and watched. The needle proceeded to drop and drop and drop and drop down to zero after about a minute or so. If memory serves last time I did this test, it held. So I ordered a new one. I will have to see if this helps or not. Either way, I suppose it is time to change it out as I installed that one back in 2009 according to my Z maintenance book I keep.

Update. It's been several months when I posted questions about a soft feeling brake pedal in my 79 zx. I checked the vacuun check valve and found it to be defective. I didn't even use my vacuum test equipment but instead just removed it and blew and sucked through it and knew it wasn't holding vacuum. I replaced it and now have very good, stock brakes again.

Yes, take it a lock smith. If the core can be removed from the cylinder it isn't that difficult to make a key. Key blanks are common. I can't recall if the core is wafers or pins. Come to think of it, it's a double cut key, so it would be a wafer lock. To remove the core from the cylinder without a key, not a big deal to pick the lock. I have no idea what a lock smith would charge, but it's not a big deal. When I closed my business I kept all the key blanks, I probably have what you need. Jim

This was a clue that it was an electrical problem. If the engine was still spinning because it was in gear then spark will still move the tachometer needle.

I think you may find @26th-Z and @Carl Beck already have most if not all of the documents. I've hoovered them up for my archive. Will be interesting to see what if goes for this time, I think it sold at least once or maybe twice since the last BAT appearance 6 years ago.

Any update. I suspect a gas tank from S30 World might be in my future along with Vapor Lines from Resurrected Classics.

I pulled the computer out and took it apart. It looks really good, so I put it back together and started on the ignition module replacement. I followed this diagram that I got from the knowledge base and tried it out, but no joy. I didnt see anything about needing to run it through the ballast resistor, so I left it out of the new circuit. Im not sure which side is + on the coil so I put the new green wire where the old one was. I found another post that had a resistance measurement for the pickup coil. Looks like its suppose to be around 720ohms. Ill check that next time im out. Im sure im missing something, but im was too tired to really use my brain. The module is bolted to the throttle body temporarily. And I broke out my new plug wires as well. Anyone have any suggestions?

@Yarb

Shame you had to get rid of the 240z but glad to see the 280zx getting some more attention. I just ordered some parts from the US and will try to fix my 280z over the coming winter. I will definitely come visit you this spring with my 280z!

All, Thanks for the info. Dropped the R200 in the car, your are correct, the driver side side axle is shorter than the passenger side. Installed the short axle in the CLSD, engaged flush and installed in the car. never run a clutch diff before. Are there better oils and weights to run in a CLSD? Spent the dollars on Red Line 75-90 w full syn for the open diff but not sure this is correct for the clutch unit? Any help would be welcome. Thanks again.

I plugged mine off but it doesn't get very cold down here. Less chances off leaking, losing coolant was my main reason. Lots of info in these threads... https://www.google.com/search?q=plugging+water+to+carbs+240z+classiczcars.com&sca_esv=77dc914585b7f4b2&rlz=1C1VDKB_enUS1121US1121&ei=1oETafjINaKHp84P-LudoAw&ved=0ahUKEwj4i8S_3uqQAxWiw8kDHfhdB8QQ4dUDCBM&oq=plugging+water+to+carbs+240z+classiczcars.com&gs_lp=Egxnd3Mtd2l6LXNlcnAiLXBsdWdnaW5nIHdhdGVyIHRvIGNhcmJzIDI0MHogY2xhc3NpY3pjYXJzLmNvbTIFEAAY7wUyCBAAGKIEGIkFMgUQABjvBTIIEAAYgAQYogQyBRAAGO8FSJZBUOkFWKcfcAF4AJABAJgBlgGgAcYIqgEDMC45uAEMyAEA-AEBmAIKoALsCMICDhAAGIAEGLADGIYDGIoFwgILEAAYsAMYogQYiQXCAggQABiwAxjvBcICCxAAGIAEGLADGKIEwgIKECEYoAEYwwQYCsICCBAhGKABGMMEmAMAiAYBkAYIkgcDMS45oAfSHLIHAzAuObgH5wjCBwUwLjguMsgHFA&sclient=gws-wiz-serp

About rust free section from a series 1 . Not using this so up for sale. Hard to find a clean section like this . I’ll ship anywhere 200$ Email Sfinnerty1018@gmail.com

Thanks! Of course and now that I know I was able to find in shop manual.

Well hell! @Tanker what year was that Honda electrical brake booster? Did you get a hold of the 3D print file? I’m intrigued but I can’t find the Facebook thread! 😫