Dr. 240Z

Hi, geezer Yes...I state that because over the past 40 years they have been viewed by various tire-techs without comment. Additionally, I've never been witness to any visible damage to the rims and, to date, I've never had any problems (ie loose rims) except for the rust issue as mentioned earlier. Cheers, George

Hi, Kenmataya This is the original belt from a 1971 (made in Jan./71) Hope it helps! George

Hi, and thanks to all who have responded to this question. The wheels are aftermarket (bought new in 1972) and I'm not sure I ever knew the manufacturer. The important thing here, as has already been pointed out and questioned, is the lug nut's shape. That said, these artermarket wheels take a taper ended nut similar to that of the OEM's steel rims. Thanks again, everyone!! George

Great...Thanks, dltalfa

Thanks, David I like your definative response. Cheers, George

Hi, I've got a 71 240Z and would like to replace the rusty lug nuts. It's been suggested to purchase 'McGards'. I'm okay with that but a web search only lists McGards for a 260Z. Question: Do the 240Z's share the same lug nut specs as as the 260Z's? Thanks, George

My Z has had a hole in the vinyl in the area of the throttle slot for years...too many years to remember!! The attached pictures show a simple fix: Find a piece of plastic with a surface textured similar to the surrounding vinyl, cut it to fit, place it and colour it to match. In this case, the plastic is from the lid of a bottle of almonds.

Interesting, tlober, that's what I used on the exterior of the mast as well. Internally, on the cable I used a minimal amount of white grease.

Yes - There are multiple internal areas that should be cleaned and lubricated which are only accessible via 'peeling the onion' (removing the layers). Given your account it's hard to suggest taking it apart. That being said, if you don't inpsect it occasionally chances are its silently corroding away which could prove challenging down the road to restore...especially given the lack of OEM parts available.

Recently the Z's antenna stopped working in both directions. However, the motor that drives it sounded 'nonmal'. Upon reading multiple threads on this site and elsewhere I decided to attempt a fix. It can be done!! Somebody/somewhere suggested using Trimmer Line if the problem was the result of a broken plastic drive cable...which this was. The replacement cable is 46.25" of 0.13 trimmer line which cost $0.80 at a local farm store. Please note a couple of take-aways if you attempt this: 1) Write down everything you remove as you remove it...do not rely on your memory! Place all the removed parts in sequence. Hint: Take a series of pictures. 2) Use heat to remove the plastic cable from the metal attachments at both ends. Also, use heat to insert the new cable. In both cases, heat the metal parts and not the cable itself. 3) Take advantage of where you are by cleaning and oiling as necessary before sealing the site up. Cheers, George

I need some help locating a retail supplier of expansion springs suitable for a throttle return application. Any suggestions? Thanks, GF

Hi Ron, Can you remember where you bought the Z caps? Thanks, George

Thanks for directing me to this form, 240dkw...good info for sure

As is, the OEM antenna on my 71 Z is fully extended and will not retract. The motor sounds normal so I suspect the drive strap has broken. Suggestions regarding how to replace the strap and what to replace it with are most appreciated.

I just spoke with a Quaker State 'Fluids Rep' about their synthetic, 'Ultimate Durability', and its use in older engines. Basically, he stated that it does contain ZDDP (800ppm) and that the addition of more ZDDP might be appropiate. That said, he did caution that the addition of excessive amounts of ZDDP can destroy certain types of catalytic converters. I have learned a lot on this topic via your comments - Many Thanks

Thanks for your responses...I'm a ltttle confused by distilling them, however...Perhaps, I should return to what I started using in her 41+ years ago: Castrol GTX - changed every 2k miles

My Z's engine has been recently rebuilt and after the break in oil was replaced, synthetic oil was chosen. My question: Under average use, how often should I change the synthetic oil? Thanks

Thanks, John It's what I should have done in the beginning_if I had only know!! As is, Five (5) goes later (1 in NS, 3 in NB and 1 in Me.) and I think it's as close to your specs as it's going to get. I expect 'Blue' will post them.

John, Given the Z's current data that Blue has referenced (and equipped with the techno toy parts as noted), and your reference to the number of hours it takes you to properly align a S30, what would you ask the tech to focus on the most if he/she has only one hour? What if he/she had two hours? Thanks

This item on ebay might be of help for an answer to your question: Datsun 1972 240Z Factory Service Manual CD-ROM

One web site that might be worth a look: www.zcarsource.com

Sorry I can't answer your question. I'm looking for a new muffler that has a 'deep' sound. You mentioned, Magna Flow. What company makes it and how does it sound? Thanks, Dr. 240Z

Hi, These SS exhaust tips are sold in pairs - I need only one So, if you only need one as well, lets split an order. Dr. 240Z

Hi, I would like to find (buy) one Pypes EVT19 exhaust tip. As is, they are sold new from the dealers in pairs and I only need one. Thanks, Dr.240Z