Engine & Drivetrain
Post messages here about engine mechanics, exhaust, intake, etc. Anything to do with the engine system as a whole.
5,552 topics in this forum
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- 5 replies
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do we really need the rear engine bypass tube, rear water outlet, engine side water tube, hole on the water inlet tube, and the coolant passage way through the intake manifold for su carbs to the thermostat housing? This is with the heater hoses already out. I plan on deleting the hole shaaabammm. does anyone know the thread sizing for the above mentioned so i can go to my local home depot and by some brass fittings to plug those holes in?
Last reply by s30z_lou, -
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Hi all, I just got my '78. I've been a bit concerned about the starter. It cranks the engine just fine, but it doesn't sound like any other starter I've had in any other car, including my old '75 Z. When the engine starts, and I turn the key back to IGN, disengaging the starter, the starter "groans" as it winds down. This lasts maybe a second, maybe less. I had hoped this noise would go away with a bit of use and general de-cobwebbing; however, it hasn't. My old '75 280Z's starter sounded like any other starter I've had, in that it didn't groan after I let go of the key. (Or at least I don't remember it having done that.) Is a groan normal as the starter winds down…
Last reply by Zed Head, -
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Finally, after Tsunami impacted the production line, Series 1 braided vacuum hose lauched. This hose runs between intake manifold to check valve at firewall on Series 1 240Z 1969-1/1971. $69-free shipping for US main island/$18 shipping for international shipping. It will be available from MSA later as well.
Last reply by Zedyone_kenobi, -
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I've been having 5-spds rebuild since 2001 at the same shop and I bring them 4-6 a year along with a few diffs for bearing/seal replacement and stub axles to press out. Until recently the price has been under $500. but last month it jumped to nearly double that due to an increase in parts costs and the fact the shop was losing money on the discounted labor rate they had quoted me. The shop told me that the new rebuild kits come with some additional parts that wasn't included earlier (these they had been taking from spare/junk trannies) and they believe the rebuilds are better than before as a result. So my question is, what are other folks paying to have ZX 5-spds (non-t…
Last reply by Zedyone_kenobi, -
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Pay for shipping. PM me your area code, first come first serve
Last reply by robftw, -
I'm building a new L 28 for the green 72. We're using an F 54 block and a P 79 head. We bought Nissan original new .040 over size pistons.We bored the block .040 over and .080 shaved heads (shimmed cam towers). SI stainless swirl valves and an Isky Stage III cam. New rockers , springs and retainers. We'll update as we build onward. Guy <a href="http://www.flickr.com/photos/14049800@N00/3530079948/" title="IMG_1652 by RVAE34, on Flickr"><img src="http://farm3.static.flickr.com/2323/3530079948_bd79878ae4_b.jpg" width="1024" height="683" alt="IMG_1652" /></a> <a href="http://www.flickr.com/photos/14049800@N00/3529267621/" title="IMG_1653 by RVAE34, on…
Last reply by Bruce Palmer, -
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I have a question about installing a new engine. THe info I have says to inject oil in to the engine via the pressure sensor port before turning over to prime the system. is there another way to do this? Background - got a 5 speed transmission and engine from a 77 280z. I have a 76 280z. figured since I had an extra engine i could rebuild that and still drive around. new engine has been completely rebuilt, used ARP bolts, block hot-tanked for a few days, bores honed, new bearings, valves ground and fit, the whole 9 yds. replacement parts such as electric cooling fan have finally been obtained and I'm prepping for the actual swap. see pic of engine if curious I did se…
Last reply by ZCurves, -
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Hey guys, need a bit of help. I have a 74 260z with an auto transmission. The tranny shifts great, but will not slip into 4th gear. It's literally as simple as that. No weird noises, no grinding. As far I can tell, 1-3 feels brand new. So my question is whether or not there is a typical problem and solution to fix this, or if the entire tranny is bad? If it is as simple as replacing a bearing or making an adjustment, I'll drop it myself and replace the part. If not, should I get a new tranny or take it in to a shop? One thing I suspect is that this car was dragged at some point because it has triple weber carbs, straight pipes, oil circulator, and direct tank-engi…
Last reply by ZohanIsBack, -
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Hey Guys...I am considering installing an R180 diff with 4.11s (non LSD) in my stock '72 (original 2.4 engine with no mods). I will also be installing a 5-speed with a .8 overdrive. The original 3.36 rear is still in it. I ran the numbers and with the .8 rear, and the final drive ratio will be about 3.29. I plan to leave the engine alone and am hoping the 4.11s will wake the Z up a little at stoplights. How streetable is this combination?
Last reply by LeonV, -
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I dropped my E31 off at the machine shop. They called me today (I was having them vat my spare head before putting it on), and told me that the head is 4.227" high, 0.008" below the minimum height of 4.235", and that the previous mill job I had done (which took off 0.003") was done badly (their fly cutter picked up a repaired weld and grooved the head around #6). Finally, they told me that the intake seats need replacement as well as the guides (all the seats but #6 are brass). I'm not sure where to go from here. Is the head scrap? Is there a possibility of shimming the head (thicker gasket)? Will I have to shim the cam bearings when I get it back?
Last reply by Jehannum, -
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I went by a local machine shop last week to ask if they would consider re-working my N47 head off my '77. He had a head that was, as told by the customer off a '80 ZX, not picked up from 2006. He got it down and removed the bag it was wrapped in and to my surprise it was a N42 with a oiler cam and the cam towers did not have the holes for a spray bar. It has the hole up front for a mechanical fuel pump but no plate covering it. So could it be that someone had new cam towers installed and the power steering pump on the '80 car covered the fuel pump opening? All my searching shows the P79 had that same hole but would the head still be stamped N42 or P79? All I see is …
Last reply by siteunseen, -
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I've been chasing down valvetrain noise for the last month or two on my 240Z (stock block, E31 head), and I think I've found the culprit: #3 intake valve is sticking. I noticed it this way: I was (again) checking valve clearances, because of clacking, and once I had everything set, I cranked the motor over, and it sounded like a box of rocks. I pulled the valve cover again, and saw that #3 intake valve was stuck at about half-mast, the rocker arm quite askew. I was able to free the valve with a quick tap with a soft-faced hammer (it popped right back up). There is definitely some damage to the cam lobe at the edges (it threw a lash pad once before). There is no damage t…
Last reply by Jehannum,
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