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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Progress slowly continues on our resurrection project. The driveshaft is now removed and I would like to replace the u-joints. 40+ year old car that has not been on the road for over 20 years. The joints are staked in and the repair manual says entire propeller shaft must be changed. I have found 2 different catalog listings for u joints with different cap diameters, one of which comes with no hardware, clips-the other comes with clips. I have not yet accurately measured the existing u joints for size yet but looking for some input from the more experienced Z experts here. The Spicer brand u joints for the drive axles installed perfectly, just hoping to be able to d…
Last reply by One Way, -
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Trying to replace the u-joints in my ‘72 240z (r180), and the moog 393 replacements aren’t fitting in correctly to allow for the retaining clips to seat fully. Decided to measure the new vs old ujoints and the new ones are ~2 mm bigger Than the ones I took off. Any advice on what else to try? The caps are the right size, the body just seems to wide. Sent from my iPhone using Classic Zcar Club mobile
Last reply by adivin, -
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Hi all, My restoration finished and with it my refreshed L28 picked up a Steve Bonk cam and a full head port and polish with intake matching by Reg Samuru. The cam has a great tone and idle and winds right up fast. I definitely notice more grunt mid range (where I drive) and overall am very pleased with it. The head was fully ported - and I do mean ported. Intake and exhaust had a lot of metal taken out an my intake was port matched, including locator pins on the head. Overall it is flowing more air, as measured by the increases in jet sizes to maintain nice AFRs (13.5 ish). There are lots of options out there but do consider reaching out to Steve in Chicagoland…
Last reply by Terrapin Z, -
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Hello to all. 18 months into my little 19500 project car and I'm working on an engine. Series 1 car was purchased with a swapped out, non operable and likely useless L-26 engine installed. I bought a 73 L-24 engine for not much money on ebay from a guy in the midwest who raced em years ago, expecting to use it for parts. Seemed to be in good shape at first but pressure tested and found gaping corrosion hole in the head rendering that part useless. I then looked around and found a slightly pricey, complete E-31 head that had never been done, and is really flat. Head, block and crank are now at the machine shop and my guy is looking for the bigger valves, new pistons etc. H…
Last reply by ToolBoy, -
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I found a few slivers of steel in the oil strainer. They are magnetic. Should i pull all bearing caps? Maybe the bearing backing or journals are hosed.
Last reply by heyitsrama, -
- 1 follower
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My 260Z started life with a 4-speed manual. In the early 1980's, a new engine and a used 5-speed was dropped in. The 5-speed began having problems and was beyond rebuilding. I tried to replace it with another 5-speed and it was too beat to be rebuilt. I attempted to get the 5-speed up and running with some components out of a 4-speed but the gear lash made more noise than my exhaust so I went with another 4-speed I purchased for $23. My car is in the shop for the next few months waiting on a camshaft (but that's another story) but in the mean time, this has popped up on facebook marketplace: Also have a (83) 2wd long tail fs5w71b 5 speed trans and a (85) s…
Last reply by EuroDat, -
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Put the “pin-stopper” back in and put the C clip back on. After you find it or get another of course. Simple! FS5W71B BTW Don’t ask me where the old one went. Put some sealer on either end as well, it could leak oil.
Last reply by zKars, -
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I intentionally made a story out of this, because I personally like to read the stories of others. Furthermore, I find a little background story helpful when trying to help other find a solution to any issue! If you dont want to read the background, skip on down past it 😃 Background: I bought my '78 S30 on July 13th, 2021. It had roughly 66,000 miles on it and now has 67,651 miles on it. Prior to my ownership, the car sat for ~10 years. Before that, the story was not clear. On August 31st, 2021 I was driving from (Bellevue & I25, Colorado) to (Kipling & I70, Colorado) which is about a 40 minute drive, when it was roughly 93 degrees Fahr…
Last reply by siteunseen, -
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- 7 replies
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I have a Datsun 240z 1973, when I bought the car I was informed the previous owner may have added a "hopped up cam". Since owning the car I have had issues with rough idle and pinging and I am curious if this some of this could be related to the valve timing. I have not checked the Valve timing but I am not sure that stock numbers will work if the cam was changed from Stock. Curious advice for a Zcar novice. Thank you for your time,
Last reply by Zed Head, -
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Greeting, I observe a weird problem. Recently, I upgrade the headlights with dapperlighting OE7. I'm using the input from the passenger side by tap in to the connector from the body to the passenger side headlight. I also follow various guidelines to add 2 relay for high/low beams and only single fuse from the battery to the whole assembly. The light is wayyyyyyyy brighter than the stock. I feel much "safer" driving at night. My eyes might play trick on me but the dash lights for the speedometer and tachometer actually brighter, I think. They're LED. The other gauges are still look dim. That's the extend of the last work on the 1977 280…
Last reply by siteunseen, -
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- 505 views
Any of you guys use the Rockford 430-10 u-joints to replace the original staked in ones?
Last reply by ennisdavis, -
- 2 followers
- 52 replies
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A little background. I picked up my 71 240 last summer for a new hobby. It is not a DD, race car or show car in the near future. One of the reasons I bought it was to do a complete tear down and assembly on a fairly simple engine. I pulled the motor and have torn down, cleaned, re-finished most all parts and I'm ready to re-assemble. I have learned a lot and have a much more through understanding of how the engine works and how modifications impact all aspects of performance. Knowing what I know now I do want to eventually have the block and head professionally machined with all new or machined components. However, at this point in my new hobby I've about hit my sp…
Last reply by Trnelson,
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