Engine & Drivetrain
Post messages here about engine mechanics, exhaust, intake, etc. Anything to do with the engine system as a whole.
5,551 topics in this forum
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- 3 followers
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Hello all, I believe my oil pump is one or two teeth off due to the alignment of the distributor pin when #1 cylinder is at TDC. My question is whether or not it actually needs to be corrected. Can simply adjusting the orientation of the distributor correct this? My car is a 72 with SU carbs and I'm running a MSD unilite distributor on a Datsun Spirit 2.7 liter engine. It runs pretty well, but is difficult to start and seems to pull/ let off at light throttle while cruising. Thanks for any input. Cheers, Scot
Last reply by Captain Obvious, -
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- 2 followers
- 6 replies
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Hey all! I'm slowly working through the auto to five speed swap right now and am ready to route the hard line. I have a hard line from the parts car (1981 ZX) that I was planning on using but seeing how complicated the routing is, I want to make sure before I start that this will work. I'm totally fine buying a prebent line for the 77 if it doesn't. Has anyone done this successfully? Should I just bite the bullet and buy the line made for the car? Thanks in advance!
Last reply by Yarb, -
Vapor Tank Question 1 2 3 4 5
by chaseincats- 5 followers
- 52 replies
- 1.5k views
Hi guys, I'm honestly not sure which sub forum this was supposed to go in but here we are. Periodically I smell gas fumes in the car. One of the main culprits was the old-style hose clamps weren't sealing the hoses to the vapor tank well enough. I changed them to modern belt-clamps which helped a lot but not fully. I've been testing the leak by blowing in the hardline that connects the carbon canister to the vapor tank and scampering back there to sniff around (which is how I originally found the clamps were a problem) but I'm still smelling some fumes while driving so it's not fully fixed. At this point I can't seem to pin down the smell point and even …
Last reply by HusseinHolland, -
- 2 followers
- 4 replies
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Anyone here use a fumoto drain valve? Does anyone have the part number? I tried looking at their website, the 240z wasnt on their selection menu.. Daniel
Last reply by SteveJ, -
- 3 followers
- 109 replies
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This is my first thread to Classic Z-Cars, and I am excited to join all of you other Z-Car enthusiats! My son and I have 2 classic Z-Cars: a 1972 240 and a 1971 240. I use to have a '72 240Z when I was in college over 20 years ago and loved it! My 17 year old son and I just recently purchsed both of these cars and are currently restoring the '72 and once we complete it, we will start on the '71. I have a question: When we purchased the '71 last week, the seller also included 4 crates of misc Z parts including a spare engine, 4-speed tranny, dash (no cracks!), console (no cracks either!). He was told that the engine was from a 1970 240Z. I would like to verify th…
Last reply by dspillman, -
- 3 followers
- 7 replies
- 159 views
Does anyone know the threading size for the differential drain and fill plugs. I tried to measure them and came up with 27x2.0 but apparently this was incorrect. My "Thread Detective" doesn't go this high.
Last reply by Captain Obvious, -
- 3 followers
- 17 replies
- 456 views
I have an early 5 speed here (77-79 “B” type 5 speed) that I’m rebuilding that has a busted out tail shaft casting where the output driveshaft seal goes. Was apparently dropped at some point in it’s life, the dust shield is clearly bent and re-shaped by a PO. I’mm looking for brilliant and inventive ways to fix this (I mean cheap…..)
Last reply by Captain Obvious, -
- 3 followers
- 36 replies
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Almost got stranded yesterday with a starter failure. Was able to bang on it with a hammer and get another start of of it. I’d just get one “click” when I turned the key. This is a remanufactured (AC Delco -premium) gear reduction starter. I love when they put crap like “premium” in the description….lies lies lies! I bought it on Rock Auto 27 months ago and as expected the warranty expired 3 months ago. With a little I drove this car it might have 100 -200 starts on it. This is the world we live in where stuff appears to break right after the warranty period as if they know this when the rebuild. My Toyota (OEM Denso) starter on my 08’ 4Runner is the origi…
Last reply by Av8ferg, -
As the title states, I finally was able to start my Z up and let it run/drive it for the first time after buying it (brakes didn't work and neither did the clutch hydraulics; The car was backed into the garage so I didn't want to inhale exhaust fumes trying to let it run.) Now that it can run, change gears, and stop, I'm met with my next line of issues: - Car idles high warm or cold (1,500 rpm.) If let sitting while idling, randomly it will start to fumble and die unless you give it gas, then it generally will return to its high idle. - When driving, it feels like its misfiring a bit. It will respond to throttle and rev, but seems down on power and you can …
Last reply by Zed Head, -
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- 6 followers
- 61 replies
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I'm getting back to installing an LSD in my R180 but I was concerned about the LSD heating up the differential during Auto-X. I drilled/tapped a hole in the fill plug for a temperature sensor but I also was looking into an alternate differential cover with extra volume and cooling fins. I located a family-run foundry operation that will do a one-off aluminum casting for $40 plus $3/pound so I designed one. Anyone want to comment on the design?
Last reply by Patcon, -
- 1 follower
- 0 replies
- 194 views
I'm restoring my dad's 1973 240z and since I'm doing the brake lines I might as well do the fuel and clutch lines. Here's my question. What is the difference between the 1972 fuel lines and the 1973 fuel lines. Buying a set it's a $200 difference, but when looking at clutch, return, and intake that adds up quick. The car has the round top carbs from 72. Can I run the 72' lines in the car or do I need to bite the bullet and get the lines for the 73? Car was manufactured in Sept. of 72.
Last reply by DocDavis, -
- 1 follower
- 4 replies
- 257 views
The car: 1971 Datsun 240Z. Original motor, fresh rebuild (less than 2500 miles.) Original SU carbs freshly tuned, New spark plugs. MSD Hall Effect electronic ignition, Pertronics coil. Electric fans. Schneider Stage II cam and new springs. 6-2-1 headers with carb heat shields. 4 speed manual transmission. All smog components deleted. So, pardon the lengthy intro. Bought the car Jan of 2023. Fresh rebuild on the motor. Always smelled gas in the car, so after researching the forums, it seemed like fuel hoses were the place to start. Also I saw fuel dripping at the rear of the car. So I removed the fuel tank and all hoses and replaced said hoses because…
Last reply by Zooter71,
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