Engine & Drivetrain
Post messages here about engine mechanics, exhaust, intake, etc. Anything to do with the engine system as a whole.
5,549 topics in this forum
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- 13 replies
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I have this 5 speed that came out of the 71 24o I bought a few months back. I have searched here and Hybridz and I think I know what tranny it is but I would like to make sure. I believe it to be a euro 5 speed..please see pics: Complete tranny: Some casting: Shifter: I can take other pics if needed. The car was serviced at Bob Sharps dealership through the 70's...so I will ask him next month when I see him about "swaps" they might have been doing back in the day. I just know these 5 speeds don't come up to often and I wanted to make sure I have my Z knowledge down here So it safe to say these trannys came in the 240's none US and also are referred as a dog le…
Last reply by 26th-Z, -
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I currently have a '71 that I'm building up, and I plan on buying a mild cam/spring/rocker kit and forged pistons... I see L28 pistons all over the place and not much on L24's. I've heard that an L28 piston will give you a lower deck height, thus reducing compression and increasing valve clearance. My questions are this: Is what I'm being lead to believe true? If so, how much lower is the deck height over an L24 piston, and what would the new compression ratio be? Thanks Steve
Last reply by Panamared, -
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Well, I have been trying to figure out for the longest time what the heavy vibration my car does at any speed above 35mph. I balance the tires etc. The balancing helped a little. But after last monday I think I know the culprit. Anyway, long story short I was on the interstate driving and then boom I hear this long rattle and after words I run over several metal pieces. I pull over immediately and check underneath. I see my exhaust pipe hanginf kind low so i figured it fell apart. I call AAA car gets on the tow truck and the driver points out that it is not the exhaust its the driveshaft thats hanging down. Evidently the 4 bolts came out that connects it to the different…
Last reply by KenshinX, -
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Hello, I took out my spark plugs last night to check them since I am looking to fire up my Z for the first time in 5 years or so. Here was my dilemma that popped up though. I was putting spark plugs back in and all had been going fine, until of course, the last one I was putting in: #6. So I noticed I had put it in only a few threads and it seemed tight. I looked at the plug and it looked like it was a little off center. I took it out and tried to put it in again. It did the exact same thing. I looked at the chamber and it looks a little messed up. If something happened to the threads, since this happened with two other plugs as well, what are my options to fix this? Any …
Last reply by JonnyRock, -
- 9 replies
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Well after playing with it for a while i found it it wasnt getting any fuel... The injectors arent getting a signal and neither is the pump. Seems like the entire fuel injection circuit is killed somehow.. I was thinking the pcm may have gotten unplugged or screwed up but the pcm doesnt control the fuel pump does it? Only the AFM controls the fuel pump right? Have any ideas guys?
Last reply by sblake01, -
- 18 replies
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Going through the knock elimination process on the 240Z. I've changed the front mount for the diff and the problem has not been resolved. It looks like one of the U-joints in the left half shaft has some play in it and will need to be adressed. So, a few questions: 1. Should I look into putting new U-joints into my existing half-shafts or should I try and find a decest used set? 2. Other than the play in the U-joint, is there anything else I should look at in the half-shafts to ensure they are viable? 3. Assuming I'm replacing the U-joints, I've searched the board and one consistent piece of advice was to get good quality U-joints. I've seen a few knocks on the GMB br…
Last reply by bigoak, -
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OK, I was lucky to locate a brand new radiator in Mtl from Spectra Premium Industries. www.spectrapremium.com I currently does not have an OE radiator on my car, and I want to know what rad cap I can use, since the old one does not fit...
Last reply by guy_geo, -
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Bought the motor off some guy from clist. so im not sure if the boost is at the stock level. Also, my fuel pump concerns me. I have heard that they might not deliver the required amount of fuel. And without an air fuel gauge it might be hard to know that its running lean. i dont want to burn anything. so what do you guys think. run the motor without any gauges or no? and if i have to get some to run it what should they be? air fuel and boost for now? then buy the rest when i can?
Last reply by firegod7, -
- 9 replies
- 2k views
Removed the valve cover on the 73 to do the valve seals and found that the rear oil rail extention (over the last two lobes) is loose and flopping around. It is loose enough to make contact with the rear side of the rear lobe - spinning it and cutting a lip into the extention. I can't see any other damage. Simple question - Seen this befor? Is it possible to repair without new parts?
Last reply by kinfish, -
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Hi guys, Did a search but didn't find much about this subject. I am curious how many different ratios differentials came in a 72 240 with a 4 speed? Looking in the haynes manual it shows 3.9 as the only one available. Is this true? Thanks, Justin
Last reply by Jusjofok, -
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While I was swapping a bell housings off a transmission (Datsun720(1981-83 720 Truck) to 280ZX type, I happend to lose a metal sim at front counter bearing. It is located at front cover. I called Courtesy Nissan, they said that there are 4 different thickness, and are national back order(comes from Japan in 4 months!) Now my question is, do I really need it? Sim size could be different depending upon how far I press in the bearing into counter shaft..... A transmission shop I know told me to use gasket maker rather than thick original gasket to compensate the thickiness......... I am looking for metal sim OD 6.2mm ID 5.4mm. (240Z-280Z ones are smaller in diameter) New …
Last reply by esprist, -
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Ok.. My car is stuck since 3 weeks because I cannot find the right gasket for my E88 head and I need a special gasket since I have flat top pistons.. I have a 72 240Z I'm in Mtl, someone told me that a 280ZX Turbo may be working... Can someone can confirm that?
Last reply by guy_geo,
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