Engine & Drivetrain
Post messages here about engine mechanics, exhaust, intake, etc. Anything to do with the engine system as a whole.
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Need all new valve guides and clips for my 240 head. Do the Nissan and the ITM version come with the retaining clips? Also, The parts manual shows different p/n for intake and exhaust. Some sellers say they are the same guide for both. Anyone purchased and installed any lately? Thanks.
Last reply by gundee, -
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Beginning the installation of a different head (E31) on my 72 stock engine. Are new head bolts a good idea? Non turbo or Turbo? Where would you buy them? Are new studs better than new bolts? Where to acquire the timing chain wedge? Other recommendations are a[appreciated Don.
Last reply by 240260280, -
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i can’t believe I’m asking this, but how do you remove the air cleaner housing on a ‘72 240Z?! The front wingnut is too long to fully extract - it hits the front strut mount area on the driver-side inner fender. Without extracting both Wingnuts, I can’t remove the housing. There’s gotta be something I’m not seeing. Can someone help a Z brother out?
Last reply by zKars, -
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In my daily perusal of CL I ran across an interesting photo in this posting. Photo 22 shows what looks like a crank trigger wheel on a very stock looking 1973 240Z with supposedly 66k miles on the clock. It does have an aftermarket coil, but the smog pump, carbs, and distributor are still in place on the pretty unmolested looking engine. Any ideas on what we are looking at or why a carb car with a distributor would need a crank trigger? My only guess is there's some kind of different ignition timing going on somewhere. I'm starting an L28E build with Megasquirt for my 240Z and am looking at crank trigger options. Thanks, K
Last reply by Zed Head, -
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I look at a 1971 240z with an Engine Block number L24 015581. The head has a E88 Casting (which should be E31 for 1st series) and the valve cover I don‘t know. What are your recommendations? I was not able to check yet, if the block was mtching nrs...
Last reply by jfa.series1, -
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Hi, What do I do with the metal cylinder that came with my new throttle linkage boot? Howard ’74 260z
Last reply by siteunseen, -
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I have a four speed manual transmission from my '73 240z. I noticed some heavy grime in the bell housing and wanted to replace the seals and gasket. My trouble is getting the front cover off. Is it supposed to come off once unbolted from the front? I have searched and didn't come up with anything other than removing the fork and tapping with a screwdriver and a mallet, but it is not budging. Thanks for any helpful insight.
Last reply by Thekvr, -
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My radiator has a small tube on the filler neck where the overflow hose connects, and it broke off! I can push the tube back in, so I think I can at least drive it to the shop that works on radiators (Rad Air) but is this something that can or should be repaired (soldered back on) or would this be an opportunity to upgrade the radiator? There are few, if any, actual radiator repair guys left. I was wondering if switching to an electric fan would be a good idea. The stock fan is working fine, but it seems to be a bit of a drag on the engine, until you get on the freeway. I have a Duralast replacement for the stock alternator; I wonder if I'm taxing the electrical…
Last reply by TomoHawk, -
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Where do you like to use sealant, grease, antiseize, etc. on your Z and what brand & product name? I'll start:
Last reply by Dave WM, -
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Hello all, I purchased my auto 240z back in 1998 and the guy I bought it from gave me a manual transmission and some other bits to do the conversion. Well 20 years later I'm thinking its something I want to do. The problem is I have no idea what transmission I have. I browsed through the interwebs, but the seems to be an endless number of combinations. I don't even know if it's 4 or 5 speed (the box o bits came with knobs for both). I would greatly appreciate any insight you might have. Cheers, Scot P.S Sorry about the quality of the photos. The transmission is buried at my parents place.
Last reply by siteunseen, -
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Can someone please tell me which way the arrow (see attached picture showing arrow on side of mount) is supposed to point for proper orientation of the rear transmission mount.
Last reply by Reptoid Overlords, -
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Gentlemans, This spring, in the name of citizen science, I've taken to trying different methods of cleaning spare parts that I've accumulated. These experiments have revealed some odd numerical stampings on a spare block, head and cam that I never noticed before (given that they were covered in crud before.) Admittedly I have not torn down many motors in my lifetime. But I am genuinely curious and my searches haven't revealed much. My best guesses are that the block was marked by a machine shop who had shaved off a .003", and perhaps, in an effort not to mix up customers components, stamped the cam and tower with the same numbers so that the re-assembler h…
Last reply by Unicorn Z,
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