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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I have tried searching the forum, but the post I find are all on 280Z. I may be incompetent, but here we go again Basically I have some trouble keeping the engine running. I have no trouble starting it. It starts first try, runs pretty good, and idles at around 750-800rpm. Trouble usually starts after 10-15 minutes of driving when it starts to get warm and hits operating temperature. When the engine is warm, and I stop, idle is around 1200rpm (sometimes a bit higher). After some driving I start losing power. Suddenly it won't go past 2-2500rpm. And when pushing the throttle, almost nothing happens. Sometimes it gets better again after a couple of seconds, if not I have…
Last reply by Koss, -
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Hi Folks, I've tried searching the archives but have not found anything relating to this particular setup. As it stands I have a freshly rebuilt L28ET (F54 block, stock dished pistons, and P90A head) installed in my car minus the E and T parts (running with fresh ztherapy SU carbs). For a variety of reasons I won't be able to get the E and T parts installed. Needless to say the car doesn't run great. The goal here is to have something approaching the stock power level so that the car is fun to drive again. To fix it, I figure I have three options: 1. Swap in working-but-worn L26 (from a 11/74 260Z) that I have. It would need a new clutch, but that's it. 2. Swap the head f…
Last reply by tlorber, -
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Hey everyone, I just installed a 280z 5 speed into my 73 240z, and noticed that it has a metal spacer plate between the mount and transmission. This spacer plate wasn't on the 4 speed that I had in the vehicle. The mount bolts aren't even long enough to fit it onto it, so I'm pretty sure it wasn't just missing. My question is if I should or should not leave it on the 5 speed? Did anyone else that swapped a 4 speed with a 5 speed notice that also? Thanx for any information. Bryce
Last reply by redzedsled, -
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Well, I've been away for awhile, havent worked on my car since last fall. Work, family, life allowing little time for awhile now. I am getting ready to get back to work and I am interested in doing a 5 spd swap. I have been searching local Craigslist ads and found an '81 with a blown head gasket and rust. Told the tranny was great when parked. I beleive this would work. I also found an '86 300zx non-turbo with 77K on it that they are parting out due to it being wrecked. Ive tried to search on this, is this a tranny that would work? Thanks in advance
Last reply by sblake01, -
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im getting ready to drop in my engine and need help with the flexplate torque, the books only show it for a flywheel. are the toques different since the flywheel is thicker than the flex plate? i just dont want to warp it or anything, thanks its a '77 auto
Last reply by sam74260, -
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I will be replacing all the vacuum hoses on my 1976 280Z and noticed the rubber fitting on the white vacuum canister is cracked. Does anyone know if these are available new? Or does anyone have a couple of these in good shape used? If so please pm me. It will be most appreciated.
Last reply by rcrahn, -
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Would an engine run if the oil pump was timed to the top of the exhaust stroke instead of the compression stroke. I guess this is considered 180 degress out. In any case would it run and if it did how would it run. I set my oil pump but because the car is running poorly- kinda sputtering, I am second guessing if I got the top of the compression or the exhaust. Thanks Glenn
Last reply by Zforce, -
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Will try to do this short, 73 240z/Stock L28 from 280z/Dual Webber Engine was suppose to have been totally rebuilt (top/bottom) 3 years ago. Always smoked a little under my ownership (2 years). Smoke is now out of control and i am ashamed of driving it. From cold start to normal running temp, SMOKE SMOKE SMOKE !!!. Any opinions, rings, valve seats, guides ? How much to fix this ?
Last reply by Zforce, -
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hi, i couldnt find my other thread about the engine kit, im trying to fix mi L26 engine but i wouldnt find pieces here in mexico and i was thinking in order this engine rebuild kit from rpmrons which includes: ITM pistons, wrist pins & rings, Clevite main & rod bearings, Pioneer freeze plugs, ITM complete gasket set, Engine Pro timing kit, and Melling oil pump. i dont know about those brands, so my questions are: 1.- can i trust in this brands? 2.- $454 is a good price? thanks
Last reply by johnstonad, -
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Just wondering if anyone experiences the same thing I do. A little background to my car is. 1971 240z. Stock 4 speed, stock rear end. Engine is a P54 Block, P79 head 2.8L from a 81zx. Stock SU 4screw carbs Mild cam (dont know the specs) Pertronix ignition 3ohm blaster coil with BR bypassed. New spark plugs gapped at .44 Carbs are tuned ever so slightly rich, on the border of being perfect. Zhome says its best for power. Carbs are synced. Running premium gas...timing is conservative at around 10degrees BTDC at idle. The issue is the car starts to vibrate at around 6,000rpms. Not extreamly bad but enough to notice. I understand the redline on my engine to be at 6,…
Last reply by 71Nissan240Z, -
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Why would the oil in my motor smell like gas? Car runs fine it seems and doesnt smoke from what I can see. Sometimes I can smell gas fumes from engine when I first start it up. Engine/Trans hums and lightly vibrates at 3,000RPMs when in gear but out of gear ints fine. Im guessing this problem might be caused from low gear oil? Please help thanks.
Last reply by FastWoman, -
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Hello again, I keep asking questions, so here's a new on. After finally fixing my electrical problem yesterday, I got the car running. It started on the first try. I took it for a test ride to a friends place, driving 20 miles in total. I hit 6000rpm a couple of times on the way. On my way home I noticed a new sound, which I didn't like. It's a squeaking or grinding kind of sound. It's hard to locate, but to me it sounds like it coming from somewhere around the front part of the engine, or front part ( a bit to the right) of the engine bay. I added two videos for your reference. I appreciate all your help.
Last reply by Koss,
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