Engine & Drivetrain
Post messages here about engine mechanics, exhaust, intake, etc. Anything to do with the engine system as a whole.
5,574 topics in this forum
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- 21 replies
- 2.5k views
this apprears to go nowhere and never seen this on any of my other 240zs , and I am not required to pass smog, does anyone what it is and what does it do and can I remove without any adverse results, it located on the passenger side of my 72 240 on the fender it apprears to be a vapor tank of some sort, thanks Jeff
Last reply by seerex, -
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- 5 replies
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Hi all and Happy Holiday, Can a mechanical fuel pump be repaired or checked out? I'm getting a lean pop from my carbs. I blewair through the fuel lines and they seem clear. I also checked the fuel rail..clear. The carbs are new Z-Therapy units. Idle is fine but giving it hard throttle pops through carb. I also would like some info on vacuum advance. Are they adjustable, repairable or disposable? How do you check to see if one is functioning? The only other thing I can think of is the fuel pickup. Even though I hear bubbles when I blow on the fuel line, can the pickup be blocked? Everyone here has great opinions and comments to help others. I make sure th…
Last reply by motoracertx, -
- 15 replies
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Hiya's I was wondering if a S20 head would fit onto a L24 block. I dout it but anythings possible. Would it even work? (after putting in S20 cylenders etc. etc.) But ive heard that S20's are as rare as hens teeth in Australia. Cheers Chris Beattie
Last reply by RB30-ZED, -
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I am looking for any info anyone has on a turbo set-up for a 4-barrel carb system. I have only seen one of these on a car a while ago. I am looking to build something along the same lines as that. But just woundered if anyone had any info or anything like that for sale. Thanks
Last reply by PrOxLaMuS©, -
- 3 replies
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Hello everyone I have been eavesdropping for a while and thought it was about time to post. I have had my 240Z since early 1981. I got it from El Paso, Texas (high and dry), in mint condition with 40,000 miles. In 1983, I converted to 2 Weber progressive down drafts, a 6 into 1 header and a Monza exhaust. In 1987, I did the modifications in my signature. With the arrival of wife, house and kids, the 240Z has ended up sitting covered in my garage unused since 1991 with only 68,000 miles. I have resisted the urge by my wife to sell it, including one time when she listed it for sale on the internet without telling me. I almost sold it to finance modifications to my Impala…
Last reply by JEFF, -
Dohc 1 2
by carguyinok- 17 replies
- 3.2k views
OK, I feel dumb asking this. But what years and what Nissan cars have the DOHC inline 6 motors ? I saw one in a 240sx ragtop but didnt catch the year.
Last reply by carguyinok, -
- 14 replies
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Hello all, question. What temp thermostat should I use? I've been having some issues with my cooling system. you can see the thread here http://www.classiczcars.com/forums/showthread.php?s=&postid=66115#post66115 I know stock is 195, but since I have a high performance motor, I want to make sure I don't overheat it. On occasion I do take my car to track events. Maybe 195 on the street and 180 when I go to the track?? Need some advice on this.
Last reply by Ben, -
- 12 replies
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Well, I finally had triple Weber carbs fitted to my L24. Previously I was running standard bottom end with ported/polished head and a re-profiled cam (fairly mild). I noticed a bit of improvement in performance, especially on the highway in 3rd/4th/5th gears. Had my triple Webers fitted and tuned yesterday, on TWM manifold (thanks Tony for the complete set-up all the way from Florida to Australia). The expense was horific! The mechanic had to reshape my extractors before he could get the manifold on. He also wrapped them in heat-insulating material to stop the petrol boiling. There was more "fiddling" to get the accelerator linkage hooked up, and a few dollars sp…
Last reply by trs, -
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hey guys/gals new to the forum, first post but I've read quite a few of the threads here. got a couple quetions that I need help on 1) after the car warms up, if I go to turn it off theirs a clunk then it will still be running, almost like its about to stall be it just keeps going, what could be the ptroblem ? running to rich? where can I adjust it if it is running to rich? 2) the car starts to overheat when the RPM's are around 2500 , if I lower the RPM's it goes back down, it does this when I keep the RPM's at 2500. no problem going over 2500, just when it stays constant for a while. any suggestions on what could be causing this? the car is a 1973 240z with a 280 block …
Last reply by wickedfronty, -
- 14 replies
- 2.4k views
Well I went and got a new fan clutch and It runs good, no overheating while sitting at a stop light but after I shut it off and let it sit for about five minutes and try to start it it starts but sounds like it just wants to die and it kinda sputters and idles really low does anybody know what this could be. Thanks
Last reply by 78 280zcar, -
- 14 replies
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Hello all! I'm considering rebuilding and refinishing my L24 engine. I want to add Fuel Injection and convert it to a 5spd, and leave plenty of room for horsepower expansion. Race pistons and whatnot. I'm just curious as to your suggestions on what to do. I considered doing an RB swap, but I'd rather keep it stock but souped up. Thanks in advance.
Last reply by texasz, -
Wanted: strong running L28 with a 240z head & carbs to run in my '71 240z'. prize negotable. call patrick @408-295-0911 m-f 7.aaam-3.30pm or sdrake@dor.ca.gov My 'Z' thanks you
Last reply by sdrake,
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