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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While under the rear end of the Z, I noticed alot of grease and oil on the pumpkin. I could not tell exactly where this oil/grease was coming from due to the accumulation of grease/oil. I looked at where the half shafts/rear end are coupled, but it does not appear that the problem came from this area. So I deceided that I would replace the cover gasket. I removed the drain and fill plugs and noticed a thin film of silicone on the back of the plugs.??? Next I pulled the cover. There was a thin film of silicone on the housing itself. As I looked into the housing I viewed some letters that looked like they were hand painted onto the gears with what appeared to me to b…
Last reply by LanceM, -
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guys putting back together the 280 motor with n47 head for install in boys 240, using his downdraft carb setup and headers, question is the n47 has 3 screw holes above the intake ports, the outside 2 are for the intake mounts but the center one that isnt used for this setup do I have to plug the holes? also used the gasket for the 240 vs 280 that doesnt hace thecutout for the injectors, asummme this wont cause any problems?
Last reply by TBK1, -
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I need to replace the hoses that connect the injectors to the fuel rail in my 77 Z, so I pulled out the trusty FSM for a few pointers. The FSM method to remove the hose from the tail piece of the injector is to use a soldering iron to make a 3/4" (ok, officially .787") long slit, then pull the hose off the injector. Has anyone done this before? Any other ideas? Thanks, Bob
Last reply by bobs77, -
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Well after the latest cruise i went on, i decided im going to put a manual in my Z soon! So what do i need to know? What is the best box to use? Im after close ratios, im not after anything rare though. Also Diffs. What ratio should i try to find. Also whats with this long/short nose diffs? What do i need? and whats the deal with fitting bigger diffs, eg R200? Cheers guys!
Last reply by datto_240z, -
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Ok so after all I have to rebuild my engine and head.:ninja: But my question is has anybody ever found oversized stock pistons, because I would like to do what ever I can to not bore my head 10 or 20 over. Yes it would give me more power but for once this is where I draw the line for extra power. So if anybody could help it would be appreciated. Thx Ian
Last reply by agemeansnothing, -
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Hi I have a 76 280z, I had problems with my previous engine where there was a crack in the cylinder head or maybe the block. Anyway I got a rebuild engine and installed it however it did not come with the flywheel and clutch so I pulled the flywheel off the previous engine and put it on the rebuilt along with a new clutch. Now everything is all together and tight, I try starting it and it struggles to start like the battery is low, but tis is a brand new battery, I checked the wires(pos. and neg.) to the starter and there good, it seens like its machanical not electrical. I even tried another battery and it did the same thing. The engine was running before I bought it, th…
Last reply by ZTEC, -
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So I adjusted the valves the other day and now they're really loud(clack, clack), figure I have too much play from this old head and probably need to tighten it up w/ new lash pads. I also know I need new stem seals, seats and guides because they're originals. Now to my question...I'm looking to buy a rebuilt head so I can swap it because I don't have alot of time for a machine shop. So I was thinking about either the E88 or a N42. I have the orig. L24 which still has great compression, so I figure the bottom end can still go a while longer. Has anyone ever used a N42 on a L24? I know the E88 is a bolt on replacement, but I'm looking for a little more performance an…
Last reply by Ksteve, -
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I've seen these euro balance tubes before but this one is different. What is the "OXS" mean that's stamped on the side? http://cgi.ebay.com/ebaymotors/Datsun-240Z-Euro-Balance-Tube-RARE-Brand-New-NOS_W0QQcmdZViewItemQQcategoryZ38634QQihZ017QQitemZ270003255999QQrdZ1QQsspagenameZWDVW Thanks. Jim
Last reply by 26th-Z, -
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Hey guys, Am currently putting the Z back together as it needs to be moved again. Its been sitting for almost 3 years in the garage. Upon leaving, I didnt prep it for storage as I didnt plan on being away for so long.... Yep poor form. Anyhow, I read up on post storage procedures, and came to turing the engine over by hand. When I have no spark plugs in, it turns over just fine, using the socket wrench. When I put the plugs back in, I am getting major resistance at certain intervals/spots! It doesnt feel like a mechanical/hard resistance as it gradually gets tighter throught the rotation, then easier again. These point/s have also prooven too much for the starter.!!…
Last reply by Nigel1943, -
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Hey guys, Am currently putting the Z back together as it needs to be moved again. Its been sitting for almost 3 years in the garage. Upon leaving, I didnt prep it for storage as I didnt plan on being away for so long.... Yep poor form. Anyhow, I read up on post storage procedures, and came to turing the engine over by hand. When I have no spark plugs in, it turns over just fine, using the socket wrench. When I put the plugs back in, I am getting major resistance at certain intervals/spots! It doesnt feel like a mechanical/hard resistance as it gradually gets tighter throughout the rotation, then easier again. These point/s of resistance have also prooven too much fo…
Last reply by Nigel1943, -
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Is it possible to have the L28's cylinders sleeved to compensate for excessive wear/boring? I understand this is regular fare for diesels, but the gas engines?
Last reply by aldersonr, -
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My stick is super hot, I mean like burn yourslef on it hot. I was worried about trans problems, so I took it to a shop and had the fluid in the tranny (78 5 spd) changed and I had them add an engine additive that I like to use. It cooled the stick off some, but it is still super hot. I pulled the tunnel cover off, and discovered that the rubber boot cover is all but gone, so there is a ton of hot air coming in there, but I don't think it should get this hot. I have no shifting issues, no unusual noises, but the stick is really hot. I know that the tunnel will get hot, but this seems excessive. It has been almost 17 years since I had a Z, so maybe I am just forgetting tha…
Last reply by Arne,
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