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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- 24 replies
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When did they switch to the internally oiled cam and ditch the oil spray bar? I would like to know if my 280 is internal or spray bar, and I would rather not pull the valve cover right now. Is there a head number or build date? And yes, I know... There's no way to know what any previous owner did.
Last reply by silvey19k, -
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Well if its not one thing its another. I dropped my oil pan this morning to change the oil pan gasket. Everything went better than expected but that changed once I look in the bottom of the oil pan. Below are pictures of what I found. Whatever it is I think it broke down the center as the bigger pieces have a small lip on them. I am guessing it is the timing chain guide but I could be wrong. Has anyone else seen something like this in their oil pan? If it is the timing chain guide I am assuming it is a must have thus this may warrant pulling the engine out. Any guidance is greatly appreciated.
Last reply by olzed, -
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Hi, me again. So after removing my clogged catalytic converter my car now runs considerably better, but not like it did before my trouble started about a month ago. I am thinking that I have blown the exhaust manifold again. the car sounds a lot like it did before I replaced it a year ago. First question: could a clogged exhaust cause my new manifold gasket to leak? Also I have spotted oil seeping from the head gasket. So my second question is should I replace the head gasket. It seems that half of the work to replace the head gasket would already be done because of the work required to replace the manifold gasket. here is a little more info: compression test results s…
Last reply by Captain Obvious, -
Siezed Clutch 1 2
by ksbeta- 14 replies
- 3.6k views
Howdy. Picked up a '71 240z a month or two ago to give my '70 a buddy. We don't get around to the local clubs often, so I could tell the green car was getting lonely. Only too happy to oblige. The car hasn't been run in close to a decade, but otherwise the list of things it needs are far shorter than another will-not-be-named project I attempted earlier this spring. After getting it running (shop vac proved helpful for removing acorns from carbs), I found there was absolutely no resistance in the clutch pedal. Replaced Slave/Master cylinders, vacuum-bled the system and attempted to run once more. No-good. Looks like the clutch is seized. I'm planning on replacing the …
Last reply by ksbeta, -
I'm a bit confused. I found a March-'71 car in a junkyard today and was pulling some of the older Series-1 bits out of it, when I thought "maybe I'll grab the head." It was an E31 after all. I ended up leaving it there, didn't want to yank it out and then find he wanted too much for it. But when I got back to my newer car at the house, I double checked the head installed on the new car I had since its also a March-'71 car. I know some engine work had been done, but I was flummoxed when I saw it had an E36 head. http://datsunzgarage.com/heads/ Did it squeeze between the E31 and E88 for a short while? What on earth is an E36 head from? Can't be anything wild, otherwise I…
Last reply by ksbeta, -
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hey, sorry for asking i know there is a bunch of threads on this topic but i wanna be sure. I checked ccmpression with engine warm and all plugs out on my 78 280z and all numbers came out 150-158 range. i know from reading previous posts that that is the minimum range for them to be at. but some people also say around 160-170 is what they look for. Do i have anything to be worried about? The problem is i parked my car for about a year and now when it runs it blows a small amount of light greyish/blue smoke out the tailpipe. (whats odd is that it doesnt do it all the time, its off and on) I took all necesary precautions before starting it i'm just worried cause it seems l…
Last reply by black gold man, -
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Just a quick question, is the timing chain the same for L24, L26 and L28? Found a brand new timing chain still in the box from the previous owner and wondering if I can use it on my L28 that I'm building to replace the 2.4l ? Thanks, Chris
Last reply by Jeff G 78, -
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I have a 77 280 with a 77/5 speed. About a year ago I replaced my shifter bushings (along with the 2 boots) because they were worn out and the shifter was rattling around. It was quiet for about the year when it started making noise again. I bought the 3 bushings and replaced them again expecting it to take care of the noise...it did not. It's only in 2nd and 3rd and mostly as I accelerate. Before I reinstalled the boots I checked to make sure the shifter was not making contact with anything. I was looking around because the bushings I removed were in excellent shape. Didn't see anything that didn't look right. Everything looked really good and tight. When I was installin…
Last reply by rcb280z, -
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enigne is running a bit rough and im thinking its the timing. I've read the pulley notch is supposed to be pointed at the 10° mark for a 1977 Z. is this the same for the 78? thanks guys, sam
Last reply by 280babeh, -
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Would anyone happen to know of a good one? Pittsburgh, Erie? thanks, TimsZ
Last reply by timsz, -
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I don't know if this has been mentioned before but since I've now run into it on 2 Z's I figured I'd post it. On the first Z I had I chased down everything looking for the cause and didn't find it until well after replacing the tank vent hoses (should have noticed it when I replaced them). This time I knew what to look for when replacing the hoses. On my 73s on the short hose that goes from the main filler hose to the canister just above it there is a little plastic fitting that the hose goes over and then the fitting goes inside the filler hose. You can see the opening for it when you remove the gas cap. That plastic fitting likes to crack and the crack is just …
Last reply by greenmachine, -
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OK, I'm an idiot. I managed to shear off both bolts holding the water outlet to the thermostat housing on my '73 240. My question - are the holes in that top part threaded? I saw one on EBay and it appears they are not. If they are not threaded, should I be able to pop that top part off? If I am really that lucky, it should expose the remaining part of the bolts and I should be able to get a vice-grip on them. Thanks for any info you can provide!
Last reply by jharvat,
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