Engine & Drivetrain
Post messages here about engine mechanics, exhaust, intake, etc. Anything to do with the engine system as a whole.
5,574 topics in this forum
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- 12 replies
- 4.2k views
I live on the Sunshine Coast in Australia ans through the Summertime it gets really warm. I'm talking up to 35 degrees celcius. Now engine cooling is not a problem as I have twin 11inch thermo fans on a re-cored radiator. My problem is severe engine power loss from extreme heat coming from the extractors. When I first start the car in the morning and drive to work it is very responsive until the engine gets warm then I think the webers start to suck in the hot air and the power is lost. I am looking for plans to make some sort of a heat shield to reduce the heat drawn in from the webers, or other ideas to help me with my problem. I have thought about the hot coate…
Last reply by Luke240z, -
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- 4 replies
- 1.4k views
Hi Guys - I bought this L28 nearly a month ago. Pretty much will remain stock except the camshaft, the distributor, the fuel injection system and some cooling stuff. I will be putting the AZ Intake Manifold w/ the Holley 390 CFM Elec. Choke 4BBL..hopefully by the end of March I will buy one. Click the links below to view some pictures. http://www.astigracing.com/L28_01.jpg http://www.astigracing.com/L28-02.jpg http://www.astigracing.com/L28-03.jpg http://www.astigracing.com/L28_04.jpg http://www.astigracing.com/L28-05.jpg http://www.astigracing.com/L28_06.jpg http://www.astigracing.com/L28_07.jpg http://www.astigracing.com/L28_08.jpg Feedbacks...... -John-
Last reply by Toysport, -
- 7 replies
- 1.4k views
What is this bolt for exactly? It's loose and rattling around.
Last reply by sblake01, -
Idle too fast 1 2
by MDyer- 14 replies
- 6.3k views
After warm-up, my 77 wants to idle at "way too high" rpms. A quick punch of the accelerator only works some of the time. Not long ago, I removed the air filter and housing prior to doing some grill work; I have not replaced it yet. Could the free breathing be causing it to idle so fast? (The car exhibited the same symptoms prior to removal, but it's much more pronounced now.
Last reply by Gav240z, -
- 4 replies
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hey guys...im back from zcar.com. those guys are giving me such poo poo cause im 18 and apartenly i built my z wrong. anywho, i reinstalled my old pulley, and it came apart. luckily i heard the noise, and stopped before it flew off. so now im getting a new one. problem is, the pulley almost welded itself to the crank. i got it off, hoever, there are a few marks on the very end of the crank, where metal from the pulley has attached itself to the crank i talked to Eddie Radatz, where i live, and he said hes seen it before, that all you do is get some sand paper and carefully sand the very tip of the crank down, where the metal is, and slide the new pulley back on. also get …
Last reply by Ed, -
Fan shroud 1 2
by Alex 240Z- 21 replies
- 2.8k views
I am thinking of adding a fan shroud to my 71 240Z !!!! I fell it would help the radiator to get more air and keep the car running a little cooler !!! I live in Florida so the cooler the better. My 72 has one but 71 or newer Z's did not come with one. Is a fan shroud from 72-78Z cars interchangable ????
Last reply by Alex 240Z, -
- 3 replies
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I'm getting ready to replace the valve stem seals on my 280z with the head still on the car method. The descriptions I've read say to turn the engine over by hand. Whats the best way to do this? Is it safe to use the cam shaft sprocket? Vince
Last reply by v_balge, -
- 2 replies
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When you hear someone talk about or see an ad that says rebuilt engine, what was actually replaced? I recently purchased a 78 with high mileage. Engine and tranny will be coming out to re-paint the engine bay and I want to get the engine rebuilt. So, what needs to be done to restore? Looking forward to the list...
Last reply by DWhiteaz, -
- 2 replies
- 1.6k views
I have removed the smog pump, and the hoses up to the tube that is connected to the exhaust manifold with 6 little hose bolts. Well i can't seem to find the right size wrench to use, I have tried both metric and regular, any ideas?? I was also wondering what size plugs I would need to plug these holes up. If you have any info, please let me know! THANKS AGAIN GUYS!!
Last reply by cremmenga, -
- 11 replies
- 2k views
I have had my 240Z in my garage now for going on 3 years. It hasnt been driven because it is undergoing a full restoration. The motor was completely stripped down, hot tanked and rebuilt by Rebello nearly 3 years ago. Up until 18 months ago, it just sat on an engine stand. It now sits in the car but still has not had any fluids since the rebuild. Even though the car is always garaged and i live in Northern California, i am concerned about the possiblility of damage. Should i be concerned? Is there something i should be doing while then engine is sitting idle? Thanks Mark
Last reply by texasz, -
- 10 replies
- 2.8k views
I finally got my 1972 240z running, it is alittle knocky, and lags a bit when you press the gas. I hope its nothing to serious. I did notice that there is a tube that is dissconected from a fitting. I can't reconnect it because part of it is missing, but when put my finger over the hole it runs alot better and not as knocky and loud. I was told it was hooked up to the smog pump but For resons unknown (probably for more power i'm guessing) it is unhooked. What should I do. I was thinking about pluging the hole and taking out the whole smog pump, Where I live I would not need it and its not doing anything as it is anyway? what do you think?
Last reply by seerex, -
- 2 replies
- 1.3k views
I posted a thread about getting the engine from the 78 280 I just purchased rebuilt. Now, I'm thinking about just purchasing a rebuilt engine. I've seen prices ranging from about $1600 to $1200 on several internet rebuilt engine sites. Seems as if these prices will be close to, if not better, than getting my engine rebuilt locally which I'm kind of hesitant about anyway. Does anyone have any experience in purchasing a rebuilt engine over the internet or have any opinions/suggestions on who is recommended for rebuilt Z engines?
Last reply by MikeW,
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