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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My 240z seems to smoke a lot if the car is revved up when it's idling or if the car is cold. Once the car is warmed up it doesn't smoke when it's being driven, but it still smokes a lot if it's revved up when it's idling in neutral. What are all the possible causes of this? I'm thinking it could be a slightly blown head gasket that is causing some water/coolant to mix with the oil.
Last reply by lm71z, -
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I'm assembilng my engine and have a problem finding out where the little plug have to go, can any one guide me to where it should be. Thanks in advance Chris
Last reply by webdawg1, -
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My son just bought his first car, a '77 280 that we will be restoring together. We totally gutted and stripped it down to the shell last weekend which was a lot of fun and he learned a lot. My question is in regards to the fuel injection system on these cars. My plans were to install a little larger cam, I think MSA calls it a Stage 1 cam along with bumping the compression using a new set of pistons, but I could not find much information on how much compression or cam the stock EFI system can handle. The engine has a freshly rebuilt N42 head but it does have the stock bottom end with the dished pistons. BTW, we do not have the budget to install an expensive aftermarke…
Last reply by Walter Moore, -
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I have searched on different sites and have been unable to get a straight answer, so I will ask here. My 30+ year old radiator needs to be replaced and I am trying to decide between the MSA 3-row copper/brass radiator and having a custom aluminum radiator built. The MSA radiators are on sale right now for $180 + about $30 shipping. A local radiator shop will build me a radiator that fits like OEM for between $225 and $300. Once they see it, they will know better, but I did give them the size. My question is this: Which is better for cooling? I have heard some people say AL is better and others say copper/brass is better. Assuming the AL price is on the low end of th…
Last reply by 280~Master, -
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I have a early 260z with a L28 motor ,1979 dissy,e46 intake manifold,4 bold su carbs.been reading old posts and my service manual .the vaccum line I have hooked to my vaccum advance on my dissy is from the ported vaccum valve on the front carb. am I supposed to have a tee in that line and run it to the carbon canister where it says dist. vc ? right now I am running the dist. vc line from the carbon canister to manifold vaccum.there is allways a strange smell to this car when not running in my garage .I would like to straighten out the vaccum line if they are not right.thanks kurt
Last reply by kully 560, -
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I am looking for parts to rebuild my transmission but first wantd to confirm the model I have. According to the parts CD a F4W71A is correct for my early '71 bulid date 9/70. But since the engine was replaced with a 280 I want to postivley ID it. I can't seem to find any stamps and only found a large L1 on the side. It is a four speed so I assume the CD is correct but want to verify. Also where can I find parts besides bearings and seals? Best, H Houghton
Last reply by Arne, -
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I have noticed that my 78 280z seems to have more power while driving in cold tempatures even when engine is at operating tempature...what causes this and is there any way to duplicate this in warmer tempatures???
Last reply by sblake01, -
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I'm reinstalling everything in my car now that it's back from crash repair and I'm trying to figure out exactly where a bracket that surrounds the speedo cable is supposed to mount. It almost looks as though it's supposed to be held by the tranny-to-block bolt that's next to it in the photo. Does anybody know if that's correct? BTW, do any of you have or know of a gallery that's full of engine bay shots from various angles? That would be immensely helpful as the FSM and the club's parts microfiche CD aren't exactly lavish with illustrations of how things look for real.
Last reply by george71z, -
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My garage is beginning to smell like gas because my 240z is emitting gas fumes while it's parked. What are the most common causes for gas fumes? I ordered a new fuel filler hose and I was wondering if there are any other fuel hoses that commonly crack on these cars.
Last reply by JonnyRock, -
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so im taking an engines class in college and have access to a bore machine and many more computer machined mills and goodies. so far i got diesel crank L28 block e88 head so far i got a few questions ... what kinda rebuild kit should i get, could i get one for the l28? where can i get this kit and how much? what size rods could i use? or can i use those the ones from my l24? which ones are best recommended? ... mainly i wanna know where can i find the rebuild kit for this project and pistons. need any help advice, suggestions would be lovely:love:
Last reply by FairladyZS30, -
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Can anyone tell me if the 28L ( 1978) eng is an interference engine ? Just wondering if I bent all the valves when the camshaft broke .
Last reply by beandip, -
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I had a problem with overheating back in the fall when i parked the car for the winter. I was loosing coolant but it was internally because i never found and on the ground under the car. i had checked the oil but i never changed it and i didnt find any water in it. I finally had some time today to start checking into why it was over heating. i pulled the dipstick and sure enough it was milky. So now i know i have an internal leak but i dont know where. First thought was i might have had a small hole somewhere around the water pump because that broke last year and i replaced it. second thought was head gasket. any advice on where i should look is greatly appreciated.
Last reply by Massimo,
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