Engine & Drivetrain
Post messages here about engine mechanics, exhaust, intake, etc. Anything to do with the engine system as a whole.
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Early Series 1 240Z's had a valve cover that had "NISSAN 2400 OHC" written on them. Later S1's changed to read "NISSAN OHC" . Can anyone tell me which years had which valve cover? Any idea if there is a range of engine block numbers that had one or the other valve cover? Thanks in advance Tony V. '71 S1 240Z HLS30-17268
Last reply by an_unusual_eye, -
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I am about to carry out the installation of an A/C system which includes the following parts to my 1972 240z: http://www.summitracing.com/int/parts/vta-66005-vuz-a/overview/ http://www.summitracing.com/int/parts/vta-04808-vua/overview/ The problem i have is that down here in Panama, Central America the temperature is 32 degrees Celsius and lot of heat arises from the pavement. The other day while stuck in traffic bumper to bumper the temperature in the gauge raised to 3/4 and the car tended to stall lowering the revolutions to 800 rpm. Once out of the traffic at open road the temperature lowered to half. The queries i have are the following: 1) Should i purchase a fan shr…
Last reply by Kurbycar32, -
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I am really worried about the Reading on my temperature gauge as it is raising to 3/4 while on idle during this last weekend. The weather on Saturday was 32°C and lot of heat from the pavement. I am driving the car with no thermostat on and it should lower the needle to 1/2. I tried spinning the fan clutch and it does move at least 1/4 of the complete spin. Will i risk the engine at this Reading or could the gauge be damaged? The car has Brand new 5 quarters of oil and new oil filter and it reads what you see here! Once the car starts moving away from traffic the temperature lowers to half!
Last reply by Dreco, -
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I checked the fan clutch yesterday when my 240z was cold and it is not spinning freely. If you turn it, it only spins 1/3 to 1/4 of the full cycle. If this is the case, should i order a new fan clutch and wáter pump with gaskets also? Who sells original OEM Nissan fan clutch and wáter pump? My car was made in January 1972 and carries a plastic fan blade.
Last reply by Mark Maras, -
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Getting ready to help a buddy remove his 1970 240z l24 all original engine. Anybody in Melbourne,Florida area for help or any pointers,tips,tools type of beer to make our lives easier since its first time pulling a motor. Well for me I pulled a 77 trans am motor in high school about 30 years ago but my brain cells don't work like they used to. We are going to tackle it this weekend for Eiji to rebuild for him. Thanks, Joe
Last reply by 240260280z, -
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I've been told that a wrx LSD r160 diff will fit in my 280z, is this true? Or has anyone ever tried this?, I'm not looking for it to handle anything more than low 200 hp. Just wanna have both rear wheels spinning .
Last reply by Zedyone_kenobi, -
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Every since I put in this type B transmission I have and a clunking in reverse that corresponds to speed that I hear every single time I back up and it is by far worse when cold. Never fully goes away though. I was going to do a fluid change just for kicks today. drained the fluid, no signs of a leak anywhere, in fact it was very clean still. Keep in mind this was a rebuild from zcarsource I installed before my rally. IT shifts fine and drives fine. But it has always clunked when in reverse backing up. Clunk, clunk, clunk, clunk when I back up. The fast I back up the faster it clunks. Never had this issue ever with my old Type A transmission that came with the car. …
Last reply by Zedyone_kenobi, -
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Hi! I just got my L24 running after sitting for several years. The head looked very clean underneath the valve cover, and I went over all the valves and adjusted them to .25 and .20mm as the FSM says. I then took out all the spark plugs and let it run on the starter for about half a minute before I started it. It runs nice, but I have this nasty noise coming from the engine. I have read about other having problems with noise from the valvetrain, but this is a bit too much or what? I am not very experienced with this engine, so that is why I am asking you Any ideas? Kind regards, Tomzern
Last reply by Tomzern, -
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A couple of probably obvious questions for many, but not for me. I've looked in Autocar, Chilton's, the FSM, and other assorted manuals but cannot determine the answer to what seems to be a simple question: 1) To check for timing chain stretch is it necessary to remove the front cover, or can it be done by removing the valve cover? 2) If the above is yes and the chain is stretched, is it necessary to remove the front cover to adjust for stretch? Chris
Last reply by Jetaway, -
- 2 replies
- 782 views
i have 240z with L28 engine from 1980 280zx.the radiator is stock original 240z that i buy from the z store.which coolant hoses i have to buy? becouse i'm confused i don't know which hoses i buy the 240z hoses or the 280zx hoses? i need 2 hoses the upper and lower one. thx
Last reply by Zed Head, -
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I haven't seen anything on this subject... Is there anything available for the L28 engine in the way of underdrive pulleys? If there is, is it worth the money and effort to use them? thxZ
Last reply by Mark Maras, -
- 2 replies
- 795 views
There is that cup shaped washer that surrounds the cam sprocket bolt. What's it's purpose? Do you have to have it? Is it attached on an eccentric? Any help? 71Z. Thank you very much,TimsZ
Last reply by timsz,
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