Engine & Drivetrain
Post messages here about engine mechanics, exhaust, intake, etc. Anything to do with the engine system as a whole.
5,555 topics in this forum
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I have several L6 heads and I'm going to use one of them on a stroker build. I want to get the head ported and polished and don't know whether to farm it out to a person accomplished in this process or take the time to learn how to do it myself (probably learning on a broken head and then going to work on the desired one). If I were to farm it out, what would be a reasonable price to pay for this? Alternatively, how many hours would it take for a novice-to-middling "porter" to do an entire head? I'm sure several members have gone down both of these routes and hope to benefit from those experiences.
Last reply by ozconnection, -
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I have a early 1974 260 z with msd 6a ,8910 , blaster 2 coil ,e12/80 dissy.I hooked up the dissy ,msd 6a and engine runs great. but I can not get the tack working! unplug the harness from the ballast resister and was left with 3 wires in the plug . black /white tracer,blue solid,black /blue tracer. there was a seperate 12volt wire in with the harness that I used for the 12volt switch feed,black with white tracer. I believe the blue wire runs my tack, when I hooked up the blue wire with just the coil and e12/80 on the neg. side tack would jump around. so I installed several resistors in line trying to get the tack working with no luck. so I went with msd equipment. s…
Last reply by kully 560, -
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It seems i have developed a vibration in 4th and 5th gear but only after driving 20 miles or so... could a u joint cause this? the vibration is slight..any suggestions?
Last reply by Nigel1943, -
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Just looking at my oil pump to see about taking it out to get to the timing chain. Looks like it may hit the sway bar and not have enough room to come out. Anybody have experience with this? Bob
Last reply by dhartig, -
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On my 240z, the L shaped tube that comes out of the valve cover to connect to the breather hose fits very loosely in the whole. I can just pull it right out if I want to. After looking at pictures of other 240z engines, I noticed that there is supposed to be a little sleeve that goes in the hole to make the breather elbow fit tightly in the hole. The problem is, I can't find the damn thing anywhere. Does anyone have one or know where I can get one?
Last reply by Arne, -
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When putting an R200 diff into an early Z, is there any clearance problems with the diff restraining strap? I had to "squeeze her in" when I converted my early 71 to the longer drive shaft and diff mount. Will I have the same problem with the diff strap when I change out the 180 to the 200?
Last reply by WW2Winger, -
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I have a 1983 p90a head with hydraulic lifters ,orignal 14k miles .would like to convert it over to solid lifters does anybody know what parts needed and where to order them.I am running the n47 head on a f54 block now and would like to set this up for a spare, or if it might be possible to shave it down and replace for better head.thanks
Last reply by kully 560, -
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Well I have a pretty bad oil leak from between the engine and trans. It drips pretty constantly with the car running. I plan to do a Manual Trans swap when fixing the seal (can't have oil on the clutch); Is it possible to just replace the seal after pulling the trans? Or do I HAVE to drop the oil pan? Do I HAVE to remove the rear main cap too? How far in and how do I drive in the new pilot bushing for the manual? Thanks
Last reply by Zforce, -
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I had my mechanic install an 83 280zx 5 speed tranny (3.90) and an R200 diff out of the same car into my 70 Z. I believe the driveshaft was from the same car (driveshaft has 83 280zx written on it in marker). The driveshaft measures 22 3/4" from center of u-joint to center of u-joint at other end (as best as I can measure). I used a diagram from Arne to find measuring points (see below). I want to make sure that I have the correct driveshaft in my car. The reason I am concerned is that I am getting a large bang/clunk when hard accelerating in 1st gear, and it is possible the spline end could be hitting the tranny upon high torque (?), thus making the noise. Any thou…
Last reply by Duffman, -
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Hey guys...some good news/bad news for my 71 240Z. Apparently cylinder 6 is chewing oil...some blue smoke out the rear and the spark plug looks sooty. I'm wondering what my options are if I want to keep running the engine as is...I imagine everything will run OK if I just keep checking the oil level and replacing the spark plug every oil change or so. Your opinions on that. As for the good news, I'm willing to dish out a decent amount on a new motor...the Z shop I go to normally (ALT Z) is asking close to $5500 to rebuild my engine top to bottom. Seems a bit high, some guy told me he could help me put a skyline motor (RB25) and transmission in for that price. However I'm …
Last reply by rtaylor, -
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I have a 77 280z. She had been running perfectly fine for the 6 months i've owned her. Took her for a 20 mile drive one morning into work. When i came out at 5pm to go home...the engine would not start. Simple question is "which parts should i start with to problem solve?" Some notes: -80k miles on engine -L28 fuel injected -spark plugs are 2 months old -has new spark plug wires -new fuel injectors -battery is new -NO, i did not leave my lights on -NO, the battery is not dead -Yes, i can hear the starter trying to turn the engine over -Yes, the car has gas in it -No, i do not see an fluids pooling underneath the car -alternator was replaced 2k miles ago -engine had been r…
Last reply by zcarmann, -
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I recently set the idle to exactly 1,000rpm on my 240z. When I'm driving the car the idle almost never comes back down to 1,000rpm when I come to a stop. I have to tap the gas pedal and let my foot off of it in order for the idle to come back down to 1,000rpm. If I don't tap the gas pedal the idle returns to about 1100rpm. Does anyone know what could be causing this problem?
Last reply by sblake01,
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