Z24i ignition timing I just did some work on an 87 Z24i, Find the notch on the crank shaft pully and mark it with some bright paint. I forget which side is the primary/secondary, though. Update 1/2009: I used a complete z24i motor. Post by freddy770 » Sat May 14, 2011 12:55 am I've got an 86. As for the spark advance, the Z24i uses a crank sensor in the distributor (like the KA24DE) and had no vacuum advance on the distributo. oh and I the dot on the end of the distributor shaft supposed to line up with the "D" on the other shaft or something? Mar 4, 2013 · Adjust the timing to best performance. Aug 27, 2010 · I have an early production Hardbody with Z24I engine; it has been sitting a while and needs a smog this month. Engine: 4 Cyl 2. The Z24i was a CAS cank angle sensor with a splined end. 5L Diesel, 6 Cyl 3. I looked in the FSM and it calls for 10* BTDC for the Z24 engine, hot engine, at idle. it was applied by the ECU and could not run right without a vacuum signal. Fuel System Problems: Issues with the fuel system, such as clogged fuel injectors or a failing fuel pump, can lead to poor fuel economy and reduced power output. 5 D21 with the efi and computer controlled ignition. May 6, 2025 · Explore the Nissan Z24 engine specs, configuration, oil requirements, and maintenance intervals for optimal performance and longevity. For the 1985 Nissan Pickup with a Z24 engine, timing is set on the camshaft side. The distributor's job is to make and break a ground connection on the other side of the coil to complete the circuit. You may need the z24i timing cover. May 23, 2013 · . com offers genuine Distributor & Ignition Timing Sensor for 1985 Nissan 720 Pickup with great price and fast delivery. these pics were taken at tdc on #1 cylinder. Unless you want to spend money on dyno tuning and finding the best timing setting by horsepower and torque numbers. Jun 1, 2014 · NOTE: Before checking for codes, be sure the Ignition Timing is set correctly on your engine. Only get two codes from the computer- idle switch and reverse sending unit. Service and Repair Engine Assembly W/Z24 Engine W Jan 5, 2019 · The Z24i in the late 720 and early D21uses a splined CAS crank angle sensor. 4 SOHC 8V Z24 Z24i Timing Chain Kit Oil Pump: Sets & Kits - Amazon. This allowed the JECS throttle-body injection system to identify the top dead center (TDC) of cylinder number one. I've checked and trouble shot all of the sensors (I have the factory supplement manual for the 1986 z24i electro injection) and they all are fine. I installed a new oil pump and want aware that I had to align the timing marks. Loosen the hold down bolt for the distributor (10mm) Hook a timing light to the #1 intake side wire. May 21, 2015 · Buy Compatible With 83-88 Nissan 2. Instead, set the timing chain by aligning its mating marks with those of the crankshaft sprocket and camshaft sprocket. Detailed repair manual for the 1986 Nissan-Datsun Truck D21 Hardbody 2WD L4-2389cc 2. Apr 17, 2012 · Got my timing light and checked the timing, Sticker under the hood called for 5 degrees before TDC and I had it far in advance of that . It's likely in the service manual under the May 10, 2010 · The positive terminal goes to ignition switch power in the on position. i wish i had a diagram of this part of the system. . its a 94 d21 ka24e. Timing was then done at 12 degrees without disconnecting any vacuum lines. I checked mine today and it was at 5* so I set it to 10* as called for by the FSM. com offers genuine Ignition System for 1986 Nissan Hardbody Pickup (D21) with great price and fast delivery. Best thing here is to get a regular distributor, the electric fuel pump and the intake from a carb engine Sep 25, 2021 · Hey everybody, this site has a ton of good information on this topic but I haven't seen a thread regarding this particular problem with the ignition system. Probably shouldn't have deferred it but it only made noise right at startup, moreso with Jan 21, 2009 · The ignition timing looks right (5 degrees BTDC) for about 10 seconds and then goes to about 10 degrees ATDC with the distributor turned all of the way BTDC. Service and Repair Engine Assembly W/Z24 Engine W May 18, 2013 · This How Too will, hopefully, explain step by step how to remove and replace the timing chain, sprocket gears, tensioner assembly and both chain guides in a very detailed method with pictures and details at each step. mod. 4L SOHC Z24 Z24i Z24S Oct 20, 2005 · Don't know much at all about the z24 at all but from what I have heard, bosch plugs aren't great in nissan engines, platinum plugs aren't great in older engines, and multi tipped spark plugs aren't great in older engines. Incorrect Ignition Timing can cause all sorts of problems. com offers genuine Distributor & Ignition Timing Sensor for 1986 Nissan 720 Pickup with great price and fast delivery. The Z24 uses a carburetor, while the Z24i uses throttle body fuel injection. Sep 25, 2021 · The CAS distributor doesn't really work the coils. I'm starting to think it's the eccm itself. I checked all mechanical timing parts and all tune up parts to find nothing wrong. i think that 5 degrees on the stationary at NissanPartsDeal. I know this forum covers a lot of older stuff I guess this is more of a shot in the dark to maybe get some advice. I was just wondering what you have to do to set the base timing on this thing as i just did a lot of work on the ignition side of things including the dizzy. D. I had to remove the timing cover and I soon realized the cam was 180 degrees out while the crank punch mark was lined up with the chain link. 9K subscribers Subscribe Detailed repair manual for the 1986 Nissan-Datsun D21 Hardbody 2WD L4-2389cc 2. The L20B, Z20, Z22 and Z24 used the same drive spindle. Fuel Delivery and Air Induction Idle Speed / System Information / Technical Service Bulletins All Technical Service Bulletins for Idle Speed: Page 2237 Ignition Timing/Idle Speed - Repair Manual Correction|Page 2238 > < Ignition Timing/Idle Speed - Repair Manual Correction|Page 2236 Jan 5, 2019 · The Z24i also uses a crank angle sensor (CAS) which needs the fuel injection box to generate a timed ignition. Ignition timing is now 5 0 before the TDC position. Grade/Trim: Basic, DX, GST, SST, ST, STD. 42K subscribers Subscribe Jul 20, 2023 · As mentioned earlier, the Z24 had two variants; the major difference between them is the fuel system. I left the weber on the z24 engine I put in the truck and at first I swapped the distributor out for the crank angle sensor in the z24i and got the truck running using the factory z24i ignition setup but i Detailed repair manual for the 1986 Nissan-Datsun D21 Hardbody 2WD L4-2389cc 2. I do not like the Chilton manuals. But, to Mar 4, 2014 · Z24i was only an option in 86 Z24 ran to model end. The ignition timing on the Z24 engine is 15 degrees but Dec 25, 2021 · The Z24i spindle is splined to fit the Z24i CAS crank angle sensor. cheap and worth the $12 from any auto part store. Detailed repair manual for the 1986 Nissan-Datsun Truck D21 Hardbody 4WD L4-2389cc 2. . (the Mar 19, 2022 · I have an 86 720 4x4 z24i. 4L SOHC (Z24). The General Specifications for the Z24 are: Feb 27, 2024 · Hey guys, I have an 89 d21 with the z24i. Both motors were called the Z24i earlier 720s were simply called the Z24 and were completely different and ran carburetors. Should I be able to just pull the pump and re align the shaft or have I Detailed repair manual for the 1987 Nissan-Datsun Truck D21 Hardbody 2WD L4-2389cc 2. Ensure the timing chain or belt is properly tensioned to avoid slippage. Parts like Distributor & Ignition Timing Sensor are shipped directly from authorized Nissan dealers and backed by the manufacturer's warranty. 4L, 4 Cyl 2. Detailed repair manual for the 1985 Nissan-Datsun PL720 2WD L4-2389cc 2. Adjustments Ignition Timing Idle Speed/Ignition Timing/Idle Mixture Ratio Adjustment Specifications Technical Service Bulletins Distributor Spark Plug Compression Check Valve Clearance Service Precautions Technical Service Bulletins Water Pump Application and ID Engine Identification System I. The carb has more vacuum lines than injected. Set it right and it went right back to what it did on first start up. Here is a little 5-minute video to give you an idea of how to do that. Z24i fits You need this style spindle From another Z24/ Z22/ Z20 or L20B. 5 HB. This allowed for more precise engine management for the fuel injection system. Beside the fuel-injection, a significant change for the Z24i was the addition of an optical crank angle sensor in the distributor rather than a vacuum advance and ignition module. Mar 17, 2016 · I have a 1987 Nissan hard body truck with a Z24/D21 engine. I would tune it till i got the most efficiency out of it. com FREE DELIVERY possible on eligible purchases Aug 27, 2010 · I have an early production Hardbody with Z24I engine; it has been sitting a while and needs a smog this month. The spline removes rotational chatter from the shaft making the timing extremely stable compared to the earlier 'blade and slot' set up. I need to research part numbers, Haynes manual 1980-86. I flipped it and I'm now wondering if the distributor i Z20, Z22, Z24 and Z24i engines do not use the pin counting method for finding correct valve timing. Sent a little carb cleaner down the intake while running to wash out any dust and/or deposits. The last year of production for this engine was 1990. Nissan Z24i Full Engine Build (No Talking) Chill Soundtrack Hard Angle 1. I will focus heavily on how to obtain TDC (Top Dead Center) and how to remove the distributor and oil pump Detailed repair manual for the 1986 Nissan-Datsun D21 Hardbody 4WD L4-2389cc 2. Set engine to TDC compression stroke on number one cylinder using the front pulley and the ignition timing scale on the timing cover To confirm both intake and exhaust valves should be shut. Verify ignition timing and ensure the carburetor or electro-injection system is clean and calibrated. If you are running on the secondary coil only, then it would be like having the ignition timing retarded 10 degrees farther than it should be, which kind of sucks. May 26, 2020 · I was replacing the head gasket off a z24i and my chain fell loose causing the tensioner to jam up. I've got good ground and 12v to . Align the timing marks on the camshaft sprocket with the cylinder head mark while the crankshaft is at top dead center (TDC) on cylinder one. I have a z24i with a cas distributor, replaced coils, int and ex modules, cap and rotor. Parts fit for the following vehicle options. I tried to start the motor and it was back firing, Didint really have time to mess with it any further. Additionally, the Z24i features an optical crank angle sensor in the distributor instead of a vacuum advance and ignition module. In this article, we’ll explore some of the common problems associated with the Nissan Z24 engine, discuss their potential causes, and provide insight into how to address these issues. but. If I was you, I would try to find out who the OEM manufacturer of plugs for the engine is (most likely NGK) and get their copper or iridium version of a single tip spark plug NissanPartsDeal. Mark the notch and use a timing light and adjust so the notch is at 5 0 on the scale. Can I assume the old 'modules' also got too hot and this is why they were replaced??? Were the old coils after market? or the originals? Oct 10, 2025 · Timing Chain Kit For 83-88 Nissan 720 D21 Pathfinder Van 2. Start and warm the engine so it is at operating temp. I'll pull the oil pump and dizzy and reset the timing to see if it runs then, one dead cylinder never stopped it before, I don't see why it would now. Sep 12, 2009 · If I remember correctly the primary coil fires, then the secondary coil fires ten (crankshaft) degrees afterwards. Apr 24, 2020 · The notch is the TDC position. im wondering because I just rebuilt this engine and am planning on cranking it up tomorrow but wanna make sure I got this right. How to set ignition timing & install oil pump (Napz z24) STONE BROKE GARAGE 23. Sep 18, 2008 · Beside fuel injection, a significant change for the Z24i was the addition of an optical crank angle sensor in the distributor rather than a vacuum advance and ignition module. The information from it is supplied to the ECU which computes the timing advance and powers the coils. I just recently put the engine out of a running z24 truck in it. Easiest thing is to just use the 8 plug distributor and pull the intake side wires off it, running only the exhaust side wires, plugs and coil. 4L SOHC (Z24i). I always assumed it was the timing chain. I just put a new crate motor in about 1500 miles ago and all the sudden it started pinging. Mar 2, 2025 · Timing Chain Issues: The Z24 engine uses a timing chain that can stretch over time, leading to poor engine performance and potential catastrophic failure if it snaps. Regular maintenance of plugs, wires, and fuel components helps prevent these symptoms. Detailed repair manual for the 1986 Nissan-Datsun D21 Hardbody 2WD L4-2389cc 2. Z24i timing maxed out. Do you want to improve your car's engine quickly? Learn how to adjust ignition timing safely and boost power with simple, easy steps anyone can follow. I have read other sources on the intrawebz and they say 15* BTDC. NissanPartsDeal. I'm not sure what the timing on the Z24i is supposed to be set to. It's already there, this is easy, no need to complicate it. Oct 9, 2025 · Timing Chain Kit 83-88 For Nissan Z24 for Z24l for Van for D21 for PICKUP Nov 7, 2008 · not sure how to check from the harness. Sep 29, 2023 · The Nissan Z24 engine commonly experiences problems with timing chains and oil leaks. Apr 11, 2009 · have a few questions about how to set base timing on the Z24i motor in my 86. Jan 9, 2025 · There is only difference between the Z24 and the Z24i. It will say the motor is a Z24i not Z24. replaced exhaust ign. For a no-start issue with the Z24i engine, inspect the ECCS control unit, which manages fuel injection and ignition timing. The Black/White (B) stripe wire goes to the ignition switch power in the on position. Service and Repair Engine Assembly W/Z24 Engine W Detailed repair manual for the 1987 Nissan-Datsun D21 Hardbody 2WD L4-2389cc 2. Troubleshooting ECCS Control Unit Issues on Z24i Engine Truck Z24i trucks may face no-start conditions and ignition timing problems related to the ECCS system. Jan 5, 2019 · I think the ignition timing somehow changed, and I think its way too advanced, which would cause all of these problems, including the blown gasket on cylinder 1. from the harness connector-ignition module connector-coil connector. I was wondering what timing setting many of you have used and what were the results? The 1990 Nissan Datsun pickup truck comes equipped with Nissan's Z24 engine. Detailed repair manual for the 1989 Nissan-Datsun D21 Hardbody 4WD L4-2389cc 2. The last half or the 720's '86 production year did use the same fuel injection set up as your D-21. Check your engine compartment tag over on the passenger side inner fender under the hood hinge. Thanks in advance for any answers you can provide. I gave it a tune-up (new plugs, wires, cap/rotor) and adjusted the ignition timing to 11deg BTDC. Detailed repair manual for the 1990 Nissan-Datsun Nissan Van L4-2389cc 2. 0L. Check wiring harnesses for damage or loose connections. May 29, 2020 · SOURCE: How do u set distributor in time on 89 Nissan z24 If the sticker is still under the hood it has the answer on it. Performing an ignition timing check as part of your routine maintenance will help you keep this older engine running smoothly. Adjust it, drive it, check the plugs and keep after it till you find out what works best. Nov 18, 2015 · I an running a Z24i in an 86 D21 pick-up. I used a 1984 280zx one. The coils have 12 volts on them at all times the ignition is on. I replaced timing chain and now it won't start, so For a no-start issue with the Z24i engine, inspect the ECCS control unit, which manages fuel injection and ignition timing. The distributor shaft is different from z24i to z24. For about a year now I've had a rattle on startup which disappeared once the engine built some oil pressure/light comes off. worked then stopped. haynes doesnt show much, and what it does is hard to find, for z24i. Mar 12, 2025 · My first thought would be the ignition timing. I wouldn't even just set a factory vehicle at the factory timing and leave it alone. It has an intermittent stumble now. I need help from someone who knows it from the basics up, so I'll describe my issue in as much detail as I can from start to finish. If you place the notch at the ZERO on the scale, then the engine is at TDC. febdcwyk qjb oxsks qibvon ysiupv vyfjc qzkmctw tzhbx sanevmf zbkky pxphe lotun sknq gxvrrbl xcwajv