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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I have done a small amount of searching and surfing on this to no avail. Does anyone make a SS header for the early Z's? All I've found is plain and coated.
Last reply by Tomzern, -
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- 1 follower
- 2 replies
- 725 views
I took my drive shaft off when doing some work on the rear diff and I figured as long as I have it off I might as well replace the rear oil seal on the trany which is getting rather old and seems kind of brittle, dripping gear lube a little. This is on my 76 280z 2+2. I've taken trany oil seals off before on other cars with just a flat blade screw driver and they usually easily pop off. However, this one seems really stuck as if a prior owner put a sealer or something on it. I see in the service manual they show to use a puller but I can't seem to find a thin blade one that will slip in and around the seal. Does anyone know where to get such a puller or have any tricks fo…
Last reply by Gary L, -
So, I dropped off my 5 speed trans at the local shop here for a rebuild while I do my L28 swap. I bought a rebuild kit in advance which I dropped off with the trans. I bought the trans about a year and a half ago when I swap my car from an auto to manual. The tech called me today and asked about the rebuild kit having brass synchros...I told him I knew these trans had 1-4 in brass and the 5th gear sychro was a fiber disc of some sort that is apparently not available anymore. He said "well all 5 sychros are that black fiber material". So we are both puzzled. Did the 5 speeds ever come from the factory with all 5 sychros in the black fiber? He seems to t…
Last reply by blodi, -
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- 1 follower
- 6 replies
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Hello Guys, I think i have another rare part here.. A competition high pressure oil pump, new in the box! How rare is it and what is it worth? fits L24-L26-L28 ??? As they say: rare as hens teeth Hihi.....?
Last reply by Martzedcars, -
- 2 followers
- 7 replies
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I am sure this is noting new but I recently got a 5speed to go into my 1975 280z (currently has a 4speed) https://www.youtube.com/channel/UCxMsHgfGwCVtyRrqXVtll-g?view_as=public I will need to open up the trans go fix the broken oil gutter. Never done this before but found a manual online and plan to take lots of video.Any tips? I do not plan to remove gears or bearing (hope all is well there) and if lucky just fix the broken gutter, put in some new gaskets and seals and call it a day. I assume removing the tail shaft 1st since that is the way the manual breaks it down. This would let me remove the remains of the oil gutter. One thing I noticed is I have…
Last reply by Dave WM, -
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Someone had asked about this earlier but I don't remember who and it has probably been answered, BUT I'm excited and wanted to post! The little circles on the bottom are markers of how much has been removed, I think there's 3 across the bottom. My machinist friend finally got my E31 finished and he was telling me it was nice and flat, it had been cut before and I could cut it again. He pointed to those circles and said they were indicators of how much had been removed and when you couldn't go any further without shims. Just thought I'd share this as I was curious myself when someone mentioned it earlier.
Last reply by gundee, -
- 6 replies
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Going to be installing my L28 in the next couple weeks as detailed in my other thread, but wanted to get a consensus (or at least opinions) on what gasket to use for the header and intake. I have a new 6-1 MSA coated header going on. It came with the MSA gasket. I also ordered an OEM Nissan gasket with the metal portions for the exhaust. MSA states that the header will leak with the OEM gasket on their site. Others say that the MSA gaskets are crap and use the OEM one. I did find one thread though that mentions that MSA possibly upgraded their gaskets in 2005 or so. So maybe the newer gaskets are ok? If I do use the OEM gasket...which side go…
Last reply by John Coffey, -
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I have not been able to I.D. this plug in my service manual. , on the driver side of the block at the back of the engine. 22mm bolt head. Is this a coolant drain plug? instead of a freeze plug? Also notice that inside it seems to be completely filled with junk.. ;-( Thanks.
Last reply by txvepr, -
- 2 replies
- 1.3k views
I have an a14 that i would like to know more about cause all i know about it is that it supposedly has 30000 kilometers and was shiped state side where it ended up in my friends dads garage any info would help place i could goto find out more about it Sent from my iPhone using Tapatalk
Last reply by CanTechZ, -
- 1 follower
- 9 replies
- 3.2k views
This is on my 76 280Z 2+2 which has a 5 speed trany which a prior owner put in. The trany looks like it came out of an 81 - 83 zx (one tab on the tail and the speedo tab bolt is on the bottom @ 6:00). I notice my speedometer seems off (slow) so I pulled the speedo cog and it has 21 teeth. I checked the rear diff ratio and it is a 3.54 which means the speedo cog should be a 17 tooth. So I ordered a 17 tooth but when I got it I noticed it is smaller in diameter than the 21 tooth ( 13/16th vs 15/16th, resp). After swapping it in the pinion, which went OK, I put it back in the trany and sure enough it is too small in diameter to engage the trany sprocket to drive it. Anyone k…
Last reply by Zed Head, -
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Does anyone have Leak Down specs for a newly rebuilt L28 engine versus a well used one? I am starting a rebuild on an old engine and wanted to know how what I currently have would compare to an engine that will have new rings, valves, cylinder honed, etc.... The rebuild engine is not really showing signs of being worn out, and the previous owner indicated that it ran fairly well. It was pulled before I got it so I haven't seen it run. Here are the Leak Down Test results for my project engine for comparison: These are all in the green band on the gauge. 1: 15% 2: 27% 3: 30% 4: 15% 5: 17% …
Last reply by Zed Head, -
- 11 replies
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Hi all, I've been really cranking away at my Z (11/70) and put my stroker in as well as the new 5 speed. My issue is fitting the old clutch cylinder to the new clutch fork. On my old 4 speed transmission the fork had a hole in it for the threaded rod to go through and I could compress the clutch fully. However on the new one, this hole does not exist and I can't compress the rod fully to bolt the clutch to the new transmission. Really hoping for some suggestions on this and thanks in advance for the help. Chris
Last reply by CDL1542,
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