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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I was on my way to the Sydney Z Car Club meeting tonight, enojying the wonderful ride now I have replaced the bushings and shocks. When all of a sudden I hear a clattering sound from the engine - a bit like the sound of a ball bearing in a biscuit tin. Fortunately, I know a tow truck driver who brought the car home for me at reasonable cost. There is no doubt the engine is stuffed, thank heavens I have the spare 260 engine I can drop in - more $'s. Anyway, hopefully see you next month Geoff et al.
Last reply by That Ozzy Guy, -
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Is there any way I can just take off the egr and smok and all of the other crap that is sitting on top of my pretty boat anchors?? And also the a/c, smog pump...
Last reply by tanny, -
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I just bought a 1973 240z and love it already. It runs well, I think. It smells like it runs rich, it has hitachi round tops(I hear they suck but they came with the car). Also sometimes if it is not too warm it will bog down and lose power if i give it to much gas a t a low rpm(I think that means it runs rich also). It has no ac belt and no other thing belt (my bro told me the other thing is a smog colector or something)? How do i know when to get the valves adjusted? (can i do this myself?) The car hadn't been started in 3 months and had 1 year old gas in it, it started and ran 130 miles back to dallas. It idles well at 1000rpm when i start it up but when it gets …
Last reply by Zedrally, -
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I have the engine out and at present it is on a engine stand. I am hoping to be installing the engine soon but I have a question on the difficulity or lack there of , of replacing the rear main seal . the engine was rebuilt about 40k back but has not been run for a couple of years , at this point. Is shows no signs at all of leaking , but if it is not all that difficult to do I might as well. I just would be really pi4## to get the car done and having a leak. Is this a tuff thing and any unusual things to look for , or hints? Thanks
Last reply by beandip, -
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Ok, I an trying to figure out what shape the exaust ports are on different heads. E31 - square E88 - square N42 - square N47 - round P79 - round P90 - square P90a - square This information came from http://www.geocities.com/MotorCity/2824/heads.html as well as people in this forum. I am want to make sure I know what I'm getting into here (my plan is to put a P90 on an F54 non-turbo block which will have flat-top pistons and carbs). EDIT: Forgot to ask which is considered to be better, round or square exaust ports? EDIT: I'm updating the list above as the answers come in.
Last reply by beandip, -
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Ok my car seems fine to drive most of the time but it has a couple of issues mechanically that are annoying me. I notice when I take off at say lights or from a stop the clutch seems to stutter or vibrate the car a bit and then it picks up and the car drives fine. It's not so bad like that though, it's more when I down gear and I can feel a vibration that I'm sure isn't normal or maybe it is in Z's. It's most obvious if I'm going slow and I have lower RPM's I'm not sure if it's just the car's tuning with the low idle or if it's something to do with the clutch or flywheel. I notice my car is hard to get into gear without feeling very rough but I think this is a case of wor…
Last reply by Gav240z, -
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How much should one expect to pay for a P90 head?
Last reply by GTZZZ, -
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My stock SU carb '72 240Z has failed the IL emissions all 3 times last year and my plates are suspended. I've tried *everything* to get it to pass, but apparently the smog pump and everything that goes with it is missing from the car. I've located a smog pump, but it does not include the six metal air tubes that run from the air rail into the six exhaust manifold runners. I can't find these anywhere. Does anyone have any idea on where to find (or make) those air tubes and fittings?
Last reply by vrumvr6, -
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I have seen people talking about L28, L28E, and L28ET engines. What's the difference? Oh yes, then there's the LD28 and the L28. Again, what's the difference?
Last reply by texasz, -
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ive got a n42 L6 and I was playing around with the "L series engine builder software", trying to up the compression in my otherwise standard motor. It says that flattop pistons will give 9.82:1..which is good BUT the z car garage web site says flattops would give 10.4:1.. which one is right?? Then I tried putting a ld28 crank into my standard n42 motor and L series engine builder said id get 10.4:1 !!! perfect...BUT it says that my deck height is ok..wouldnt the pistons be sticking above the block with a stroker crank with no different rods/pistons? Any ideas? Whos right?
Last reply by z-ya, -
I've just began working on my 240Z and i've begun thinking about different preformance options. Right now on my Z there is Weber DGV carbs, I'd like to install triple webers but the price is a little high for a kid like me. I stumbled upon the option of installing a 4 barrel carb using the manafold from MSA. Which will deliver better preformance, the DGV's or the 4 barrel conversion?
Last reply by beandip, -
Has anyone taken there oil pan off and looked inside? I had too as I was changing the gasket so I also decided to clean it up and paint the outside.. What I found inside was a thin layer of black paint that's coming off in places. Should I remove this paint or leave alone? If it's coming off in places, leaving the smooth steel exposed, does this mean that it is slowly cloggig the filter. Or is this effect so marginal I can jsut ignore it and bolt it back on? Thanks.
Last reply by sjcurtis,
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