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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The last time I put an engine with the header already on I removed the steering rod in the engine bay, it was easier going in but a pain getting the rod bolted back up. I want to install the header beforehand. If I have someone push the motor towards the passenger's side on the way down would the header clear the steering rod okay? I'm trying to figure this out so it's as easy as possible without having too many people helping, they make me very nervous.
Last reply by Bonzi Lon, -
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- 2 followers
- 23 replies
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So I just installed a 5 speed transmission in my 78 280Z. Used to have a 4 speed. Before installation, nothing was wrong with the clutch, and I did not think I needed to replace it at the time. It was strong and never slipped. I did not remove the clutch and it seemed to be in good condition as far as I could tell on the flywheel. While test driving after the install, I notice that it seems like the clutch slips a bit at 3 & 4 gear shifts. The question would be is this a sure clutch going bad ? or could it be something along the lines of my clutch pedal/slave cylinder needs adjustment? I find it odd that the clutch would go bad at this exact time, but I do not hav…
Last reply by EuroDat, -
Rear Diff Issues 1 2
by Gary L- 1 follower
- 12 replies
- 1.5k views
This is on my 76 280Z 2+2 with about 85K miles. The rear diff is noisy, whining on acceleration and coasting, but there isn't any clunking. So I'm trying to decide whether I'll pull it and have it rebuilt or buy an already rebuilt one. According to the service manual it is a 3.54 ratio diff, but I don't know if it is open or a LSD. When I raise the rear end and spin one of the tires, the other doesn't move, I thought that if it was an open diff the opposite tire would rotate in the opposite direction and if it was a LSD they would rotate in the same direction. When I spin a rear tire, why doesn't the other one move? Could it be a LSD diff and the clutch plates or somethi…
Last reply by Gary L, -
- 2 followers
- 6 replies
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Have a 1976 280z with a automatic. The car has about 160,000 miles on it. The transmission fluid looks brown as you would expect. I have read where it might not be a good idea to have the fluid changed now, especially if it has never been changed. (which is what I suspect) Would like some opinions of some of you guys, especially if you have changed yours and what the results were afterwards. Thanks
Last reply by Stanley, -
- 19 replies
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Well, I've put 500 miles on my overhaul and it's time for the first oil change. Since I've replaced the cam, I thought I'd get religious about adding ZDDP with each oil change. But surprise, surprise when I get to the auto parts store, there was no ZDDP to be had. Then I spied a bottle with a big "ZINC" on the label. When I got home and read the small print on the label, it said, "contains no Zinc or Phosphorous". Wait, the label does say "ZINC REPLACEMENT". On to the web for a MSDS where the only chemical it lists is "proprietary Polymer Ester". It appears clear and has a viscosity similar to glycerin. The label claims it "will provide complete wear protection for …
Last reply by Galaxybj, -
Anyone know of where I could get a head worked on in my general area of the world? I'm in southwest Michigan. I have an E-88 that's asking for bigger valves and more, you know the affliction.
Last reply by Z dreams, -
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Anyone opinion. Are these dimples depth markers related to head cut maximum? Or just related to the casting process.
Last reply by siteunseen, -
- 1 follower
- 7 replies
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Hi all, This is pretty much my first time on a forum apart from a short time on rotary car club, so please excuse me if I do things a little wonky starting off. Anyway, I absolutely love s30's and intend on rebuilding one in the near future. I'm here to try and get started. My plans have changed over time from an ls swapped 300zx to a 350sbc swapped s30 to just realizing I wanted to retain the L platform in these cars and just go for lightweight, and great throttle response and handling with modest power. So I'm set on an L28 and after a bit of research here actually have come to the conclusion I'm looking for a p54 block with an n42 head in need of rebuild, or at leas…
Last reply by Kurbycar32, -
- 15 replies
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Ever since I put the new exhaust system on (no resonator w/ flowmaster), every time I let off the gas the car backfires, sometimes loudly. If I'm careful not to stay on the clutch too long, I can accell through the gears with very little backfiring, but it's almost impossible to avoid when decelerating. What worries me is I've heard that backfiring can hurt your carbs and engine. A buddy of mine blew a cylinder in his 99 Ram pickup when it backfired. He showed me the piston today and the side of it was completely gone - SCARY! Am I putting my engine/carbs at risk by running the car like this? Anyway, I've been contemplating adding a resonator anyway. As is, the car is a…
Last reply by Chickenman, -
- 3 followers
- 19 replies
- 9.1k views
I hadn't noticed anything wrong, but just had another person drive my car and he seems to think the gearbox is horible. This came as a shock to me, I have had the Trans gone through and have been driving it for 1500 miles, feels fine to me. So I'm asking you with way more experience than I, how would know if the trans is incorrect or if this individual just not used to driving these cars? Sent from my SAMSUNG-SM-G890A using Tapatalk
Last reply by DaveR, -
- 1 follower
- 11 replies
- 2.6k views
Anyone have experience with the Itm flattop pistons? Im looking at Ry6134-40 for my engine. They are only 200$ on ebay.
Last reply by madkaw, -
- 1 follower
- 28 replies
- 11k views
Where can i purchase a Throttle opener control valve and servo diaphragm for a 240z? My servo diaphgram is not working and i have been advised it will be need it to have the air conditioner system working properly once installed. Been searching on the internet in several sites but have not found anything yet.
Last reply by Johnny wick,
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