Engine & Drivetrain
Post messages here about engine mechanics, exhaust, intake, etc. Anything to do with the engine system as a whole.
5,568 topics in this forum
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Hi guys and gals Got my engine and tranny in but lost the mount bolts. Can anyone describe them in a manner that is can describe to a person in a fastener shop ? Thx SB
Last reply by Sailor Bob, -
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I was reading this website below and wondered thoughts on "best" head. http://www.zhome.com/ZCMnL/tech/head.htm
Last reply by gnosez, -
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The bottom of the three bolts snapped off flush with my head as I was verifying torque. Is there much oil pressure in this area? I have a feeling there shouldn’t be too much oil flow there. My question is could I get away with a new gasket and maybe rtv ultra black and using the other two bolts until I want to drill it out. The bottom bolt in this pic Sent from my iPhone using Tapatalk
Last reply by Zed Head, -
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I'm in the process of changing out my U-joints, but i am having trouble removing the 4 bolts from the driveshaft-diff pinion, it looks like they have not been changed once in the cars life, so they are being extreamly stubborn, and to make matters worse, i can only reach them with my 1/2 crescent. How do you guys go about this?
Last reply by texasz, -
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Can anyone confirm that these are the correct valve cover bolts for a 1971 240z? The ones that came with my car were not original. These came from a slightly later engine - I believe they are from a N42 block/N42 head L-28 (which is probably from 1975 or 1976).
Last reply by jerz, -
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I now have a oil leak from the # 6 cylinder header bolt dripping down by the bell housing , it looks like the second bolt in on a n47 head is this just a bad gasket ? all spark plugs look great , when I assembled the motor 25 years ago I used the old hardware I did not know at the time about changing out the hardware . so I now see msa auto sells the new hardware kit and gasket . I sprayed carb cleaner around the intake and have no rise in rpms . is it just a bad gasket and old hardware ? thanks for the help
Last reply by kully 560, -
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Hi guys, so I am having my transmission rebuilt soon and while its out I was considering having a lightweight flywheel swapped in. Do any of you folks have experience with one of these on an s30? I've read that the stock flywheel weighs around 23 lbs and all of the lightweight ones I've found online are around 10lbs. Having a flywheel that light will make street driving difficult/frustrating I'd assume (I've heard you have to kind of 'launch' the car after each stop light)? Are there any flywheels/weights you'd recommend for improved performance within reason (I only drive this in the city/freeway and never on the track). Side note: Right now, the …
Last reply by madkaw, -
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I adjusted my TPS by taking it off, cracking open the case by drilling out the rivets, and so on. That TPS turned out to be flawed, so I got a new TPS. Does anyone out there know how I can adjust it properly without cracking open the case? I need to know when the idle contact opens and when the WOT contact closes. How can I do this? Thanks Nathan
Last reply by Captain Obvious, -
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I am preparing to pull my engine, L24, and when I removed the thermostat housing it looked like someone had packed it and the head full of Stove Top Stuffing. It was a crazy amount of corrosion. I dug as much as I could out, but I'm sure there is more of this crap in the water jacket. The water pump area did not look too bad. This engine was sitting up for 15 years. Any suggestions on how to proceed cleaning?
Last reply by grannyknot, -
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For the last couple of years, I have been planning to rebuild my 77 280z motor. It is getting tired, running well but oil consumption is a issue. I suspect rings & valve guides. Last year I acquired a interesting 2.8 motor and am now getting around to looking more closely at it. It is interesting in that it was claimed to have been rebuilt and never installed. (kind of like ran when parked, lol) It is a F54 block with a N42 head. Turbo oil pan but NA intake & exhaust manifolds. I had it sitting on a nice cradle & dolly, so easy to move around. I pulled the plugs, which are new NGK's and never fired. Got my laptop and borescope camera, inspec…
Last reply by S30Driver, -
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I am trying to figure out what coil to use. The 78 doesn’t have the ballast resistor so is it the 1.5ohm or 3.0ohm I am looking at the pertronix coils. The verbiage is confusing because there is no stock ballast resistor Factory Electronic Ignition: 1974 and later Z's with original ignition should use this 1.5 Ohm coil as opposed to the PerTronix 3.0 Ohm coil, and also should retain the stock ballast resistor. Sent from my iPhone using Tapatalk
Last reply by AZDatsun, -
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Cant believe i didnt label these. any idea which is drivers side and which is passengers?
Last reply by Racer X,
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