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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- 4 replies
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I just bought my first 73 240z and I am having trouble with my high end fuel delivery. I just replaced both fuel filters, and I think its time to buy a new fuel pumps too. So basicaly I wondering if I should buy both pumps, or if any one has found that one pump fails more then the other? How can I tell which one has failed. I would like to be able to drive on the freeway again, so any advice is helpful. -Jesse
Last reply by madsoul, -
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- 7 replies
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I am working on a 71 engine. The engine doesn't run well at all. I thought it might be the timing so I adjusted it to no avail. I pulled the valve cover thinking it might be a stretched timing chain and I found a rocker arm twisted completely off the valve spring. I found the collet next to it but no lash pad. Should I A) buy a lash pad and try to put it back togather, take the head off my 73 parts car and swap it in, C) get proffessional help? Could there be damage to the valve that I can't see? I am waiting for the valve adjusting tool from motorsport ( I gues I should have adusted the valves before trying to run the engine) so I am trying to weigh my options. Any help…
Last reply by m240, -
Does anyone know how much lift you can run with out modifications to the head, or changing the springs? Or is the stock cam about it. without some other mods.
Last reply by Bruskiz, -
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hey folks, i haven't even purchased my first z car yet, but i'm looking forwart to nabbing a 72 or 73 240Z within the next month. What I'd like to do is drop in a new nissan 3.5 V6 but i'd first like to know how difficult this would be. I know some people have dropped in 350 V8s, but i like that new Nissan engine. I'm sure within the next year or so i could find one in a recking yard for a fair price. I'd appreciate any help, and i look forward to getting my first Z customized with your help! Estevan
Last reply by Ed, -
Well I decided to go out and buy a 260 the stock L26 is gonna have to go so I'd like it if everyone gave me their input on the following ideas 3.1 Stroker engine Regrind cam dual carbs ?750 demons?.. ITB setup some headwork done by me that'd make some serious power. but what would the cost be? im guessing the $4500-$5000 range?
Last reply by meandmyz, -
'smokey 260
by Doug- 3 replies
- 1.6k views
Hi, my zed is just going again from a change of carbs and a few other things, and is running a bit smokey. It is running a slightly rich mixture, and its going through a bit of oil (not litres ). I was told that the valves could be a bit tight such that oil is being burned off the inside of the engine (<< i dont understand what that means?? ) Would appreciate a bit of advice. Doug
Last reply by owenk, -
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Ok, so here one for ya'll to think about... I have the stock heat shield from a '73 over my header (6-2) and I'm pretty sure I'm still getting a heat problem in my carbs when running down the highway. These "warm" Texas summers aren't helping matters. So I'm looking to modify my heat shield to combat the heat coming off the headers. I have an opportunity to get ahold of some asbestos fabric and was thinking about using this and apllying it to the heat shield. I figure pop-rivets would work better than glue (not sure I could find a glue capable of handling the heat). Now I know all about the precautions regarding asbestos. I've been involved in the removal aspect of…
Last reply by Leeroy, -
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Where can I find rebuilt rear end with posi rear end and 4:11 gears? I also want to keep the auto trans. will this affect the shifting pattern?
Last reply by prkrgrp, -
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I have a 81 280 zx with auto trans. i am rebuilding for street racer. can i get faster et with a higher rear end ratio?
Last reply by McZ, -
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How much more lift and duration if any, can you run on a E88 head with out changing the springs and making other mods?
Last reply by smg1404, -
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I'm rebuilding a F54. I took it to the local machine shop to get it hot tanked and all cleaned up (looks good). Anyway I asked about getting the crank, rods, and pistons balanced. He told me that he couldn't do it because he couldn't separate the piston from the rod without risking damage to the piston (because the wrist pins are pressed into the small end of the rod). Has anyone balanced the piston and rod assembled?
Last reply by 2ManyZs, -
- 2 replies
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Hello, can anybody help me, i have found a cheap, motor from a datsun 260c, it was an auto (hopefully it hasn't been thrashed) i was wondering if it would be possible to put this in my 240Z with the head off the current motor on it. DOes anybody know if they are the same as the 260z motors, is it possible/worthwhile. ANy help would be greatly appreciated.
Last reply by Zedrally,
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