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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- 9 replies
- 1.6k views
Hey guys, hoping someone has a stock oil pump laying around and can pull the pump spring out and give me a measurement. I believe I am running a HP spring and I want to reduce to a stock oil spring. I'd like to verify my spring is HP. My spring measures about 2.135" long. Let me know if you need anymore measurements. thanks
Last reply by madkaw, -
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- 2 replies
- 2.6k views
Ive recently picked up a 86' 300zx non-turbo trans (5speed) nd I have the 77' 280z bellhousing on it. but with the bellhousing on it will not shift into any gears except 5th (Possibly reverse if its a dogleg or whatever they call it). So what could be a problem? The shift rods clear the rod holes in the bellhousing and everything. but it wont shift. with the bellhousing off though, it shifts fairly well. any help would be great as I need this car running for going to work.
Last reply by tymarbry, -
- 6 replies
- 2.9k views
Ok so this may seem like a weird question but my stock L24 motor has been giving me a ton of problems and is losing compression as well as the valve stem seals are leaking now. I searched but found nothing of this sort, only people trying to run a L28ET on stock 280z N/A efi system. I have a friend who has a complete L28ET motor sitting in his garage he will sell me for next to nothing. Less then a L28e would cost me for sure. My question is, can I take this motor, drop it in on my round top su's and run it as N/A for now? I want to do a full swap later on and run it on MegaSquirt, but don't have the money to drop on the EFI and all the other things needed to go from carb…
Last reply by madkaw, -
- 13 replies
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I recently took my 78 280z for normal weekend drive from Los Angeles to Anaheim then back.it was about 40 miles back and forth. The car had no problems but once I exit the freeway I heard a knocking sound but wasn't sure we're it was coming from.when I got home I checked and the sound was coming from the engine,the sounds come from the last cylinder or by the timing chain.i always check my oil before any long drive, the car was fine before that and even with the knock I haven't notice any power loss or noticeable at least. How bad can this be? Haven't had time to open the valve cover but will as soon as I have a full day to work on it.Any ideas?
Last reply by grantf, -
- 10 replies
- 1.9k views
ok i have ollked at hybridz and they say its ok to switch cam towers in doing a head swap to a internal oil cam n47 to a non with spray bar. if i switch towers will i be good as long as i have them numberd (if not i can do just switch). and have anybody ran there z with one cam tower broken? im new to engine work im going to do this for my next thing after the army and i wanna get a head start. i DO need my z back on the road so i need to know what to do just switch and go or try to get it going and wait for my head to get here.(yea i guess im kinda dumb for one question i like to do things right the first time but i really need it back on the road)
Last reply by silvey19k, -
- 3 replies
- 2.6k views
Trying to get my driveshaft out of my 77' 280z and the 4 12mm bolts that connect the driveshaft to the diff are impossible to get to and the nuts are starting to round off on the ones ive attempted. The nuts are facing toward the diff, is this supposed to be right? It seems it would be a hell of alot easier if they faced the trans side and I could use an impact wrench on it. Otherwise I dont have enough room to move my wrench and cannot even fit a socket on it because of the limited space. Help me please.
Last reply by Zed Head, -
Timing #3 1 2 3
by siteunseen- 30 replies
- 5.2k views
A mechanic friend that I have lots of faith in suggested I install my new timing set at hole #3. Says it will give it a little more umph. His shop has a waiting room with an armoire and a flat screen. Rovers and MBs with engine covers. He started off on Datsuns and said they used to do that a lot that it advances the cam slightly. Any thoughts on this?
Last reply by siteunseen, -
- 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, -
- 19 replies
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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, -
- 18 replies
- 3.7k views
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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