Firing order on 2005 ford f150 5.4.

Firing order ford f150 enlarge click Ford firing order diagram v8 1989 mustang cyl cylinder engine distributor layout numbering ignition where wiring car bank 2009 cylinders 5.0 v8 ford firing order ricks free auto repair advice Firing f150 ... 2005 ford f150 firing order 5.4Ford 4.9 inline 6 firing order 2004 ford f150 4.6 firing orderFord ...Firing order ford f150 enlarge click Ford firing order diagram v8 1989 mustang cyl cylinder engine distributor layout numbering ignition where wiring car bank 2009 cylinders 5.0 v8 ford firing order ricks free auto repair advice Firing f150 ... 2005 ford f150 firing order 5.4Ford 4.9 inline 6 firing order 2004 ford f150 4.6 firing orderFord ...V6 liter ranger justanswer firing compartmentFord 5.4 3v firing order F150 order firing triton schematic wiring2010 ford f150 5.4 l firing order. Ford f 150 5 4 engine diagram / diagram ford f 150 5 4 engine partsDiagram ford engine f150 2001 sensor wiring diagrams 150 parts location 2006 2008 v6 truck f150online component v8 2005 turns 2004 ...Dec 21, 2014 · Received 2 Likes on 2 Posts. Solved: Misfire Problem. I had what seemed like a serious problem with my engine. I was having a terrible shutter at 45-55 MPH and under load. Then, I developed a rough idle. My truck is: 2006 F-150 XL, 5.4L engine. To save someone some time, the bottom line of the problem was a faulty brand new MotorCraft spark plug. Ford F150 P0306 Definition. P0306 is a cylinder specific misfire code, which means that Cylinder 6 is misfiring and causing it. An important thing to understand when finding the location of Cylinder 6 is that it's going to be the sixth cylinder in the firing order. It won't be the sixth cylinder that you might see when looking at the engine.

1986 Ford F 150 2WD/4WD Pickup 4.9 liter L6 VIN "Y" 1986 Ford F 150 2WD/4WD Pickup 5.0 liter V-8 VIN "N" 1986 Ford F 150 2WD/4WD Pickup 5.8 liter V-8 VIN "H" Hope help with this, and, remember comment and rated this post. Good luck.Actual fire 'order' is quite different. The injectors follow the same fire order but operate a short time before ignition in each cylinder when the intake valve is open, for obvious reasons. 1997 - 2003 F150 - 2002 150 firing order - I have a 2002 f150 supercab with a 5.4 triton,i am getting a code saying that number 6 cylinder is misfiring ...With a history that dates all the way back to 1903, Ford has been out in front on many innovations in the automobile industry. They were the first to build an affordable car for th...

What is the firing order for a Ford F 150 54L V8? 1 - 3 - 7 - 2 - 6 - 5 - 4 - 8 It has the Coil On Plug ( C.O.P. ) ignition system with ( 8 ) individual coils firewall 4 - 8 3 - 7 2 - 6 1 - 5 ...Jan 18, 2018 · Ford 4.6 and 5.4 cylinder order to help if you have a misfire

Where is cylinder 3 ford f150 5. Here is how the cylinders on your engine are numbered. This puts the #3 cylinder the 3rd cylinder back on the passenger side. Feel free to contact me with any questions! Good luck! Have a 2012 f150 with a 5.4 engine has 180k on it. My.In a 5.4 Ford engine, the firing order is 1-3-7-2-6-5-4-8. This means that the first cylinder to fire is the number 1 cylinder, followed by the number 3 cylinder, and so …4.0l v6 ford firing order ricks free auto repair adviceFiring order: i need the firing order please 2004 ford f150 4.2 firing order2005 ford f150 firing order 5.4. Solved: what is the firing order on a 2006 f-150 5.4Firing order 2004 ford f150 5.4 I have a miss, i need the firing order for f150 ford p[ck up supercab. year 2002 it has a code2004 ...learn how to change your spark plugs. What tools you need, and a couple of tricks to help keep your engine in top condition. Learn how to save yourself a lot...Regardless of the ignition system, the firing order for the Ford 5.4L V8 engine is 1-3-7-2-6-5-4-8. However, it is essential to understand the cylinder numbering of this engine to interpret the firing order correctly. The engine block is divided into two banks of cylinders: the driver's side bank and the passenger's side bank.

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1990 ford f150 4.9 firing order Diagram f6 engine ford F150 hose heater vacum wiring The history of ford's iconic flathead engine — the motorhood ... 2005 ford f 150 engine diagramI am working on a 2006 ford f-150 5.4 liter v8 engine the truck has a Ford manifold intake dipstick upper gasket heater indicatorTiming lincoln tiempo chain 2004 ...

May 15, 2018 · 2010 Ford F150 5.4L V-8 Firing Order 2010 Ford F150 5.4L V-8 Firing Order Facts about the 2010 F150 5.4L V-8 Engine. The 5.4L (3V) is a V-8 engine with the following features: Single overhead camshafts Three valves per cylinder Sequential Multi-Port Fuel Injection (SFI) Aluminum cylinder heads Cast iron, 90-degree V-cylinder block Variable Camshaft Timing (VCT) Individually chain-driven ... Oct 22, 2022 · 2005 cylinder order 5.4 f150? The spark plug firing order is ( 1 - 3 - 7 - 2 - 6 - 5 - 4 - 8 ) It has the Coil On Plug ( C.O.P. ) ignition system The engine cylinder / spark plug locations are ... Firing f150 cylinderFiring order engine f150 302 1994 8l v8 ford bronco distributor 1989 plug 351 wires 1973 f250 1988 0l motor 2005 ford f150 firing order 5.4Ford 4.2 firing order — ricks free auto repair advice ricks free auto.firing order on 5.4 f150 2005 - Ford 2005 F-150 question. Search Fixya. Browse Categories Answer Questions . 2005 Ford F-150; Ford F-150 Car and Truck; Ford Car and Truck; Cars & Trucks ... Buick-built 231, 252 V6 Engine firing order: 1-6-5-4-3-2 Distributor rotation: Clockwise Fig. 2: Olds-built 260, 307, 350, 400, 403, 455 Pontiac-built 265 ...need firing order 2005 f150 v6 - Ford F-150 question. Search Fixya. Browse Categories Answer Questions . Ford F-150 Car and Truck; Ford Car and Truck ... SOURCE: firing order 2001 ford f150 4.6. the …The 6.0 Powerstroke firing order is 1-2-7-3-4-5-6-8. Knowing the firing order (6.0 Powerstroke) is good in case there is a related issue, such as an injector not firing. You can determine it by looking for cylinder 1 on the right-hand side. It is followed by 3, 5, and 7. Move over to the left-hand side to discover cylinders 2, 4, 6, and 8.

Ford firing order diagram engine cylinder v8 explorer 1989 spark mustang plug wiring focus pinto ignition cyl light layout numberingFord 4.2 firing order — ricks free auto repair advice ricks free auto repair advice Firing order ford ls f150 2003 lincoln v6 plugs fixya spark cylinder coil engine 2005 2l orders number 1997 cargurusFiring order ...Firing order help - Ford F150 Forum - Community of Ford Truck Fans. Check Details. Firing order ford 5.4 3 valve. 2001 ford mustang 3.8 v6 firing order1995 ford f150 5.0 firing order 04 ford f150 5.4 firing orderFiring efi f150 cylinder f250 0l triton distributor liter escape v10 amc v5 ecoboost fordfiringorder windstar proform f100 2l.5.4L V8 Ford firing order. Cylinder layout. Cylinder numbering. Where is cylinder #1. Cylinder #1. Bank 1.Aug 31, 2023 · Regardless of the ignition system, the firing order for the Ford 5.4L V8 engine is 1-3-7-2-6-5-4-8. However, it is essential to understand the cylinder numbering of this engine to interpret the firing order correctly. The engine block is divided into two banks of cylinders: the driver’s side bank and the passenger’s side bank. This video will show you the cylinder numbers, firing order (sequence), bank 1, and bank 2 locations on a Ford 5.4 liter motor. This should be applicable fo...

2004 - 2008 Ford F150 - 2005 5.4 F150 XLT PCM Wiring Pinout/Diagram Needed - Hi all, Does anyone have a diagram or pinout of the 3 harnesses at the PCM on a 2005 F150 5.4L 4x4 with auto transmission? ... 2008 f150 4.2 liter firing order/pinging. Thread Tools. Show Printable Version. Email this Page. Advanced Search . Quick Reply: 2005 5.4 F150 ...

Ford f150 4.6 firing orderFord 4.0 firing order — ricks free auto repair advice ricks free auto Firing v6 f150 conflicting 2001 windstar 0l ignition gtsparkplugs fordfiringorder 351c 400m 351m07 ford f150 5.4 firing order. 2001 ford f150 4.2 firing orderFord 4.6 firing order Ford firing order 4l diagram f150 2000 triton engine provide 2007 ...Ford f150 4.6 firing orderFord 4.0 firing order — ricks free auto repair advice ricks free auto Firing v6 f150 conflicting 2001 windstar 0l ignition gtsparkplugs fordfiringorder 351c 400m 351m07 ford f150 5.4 firing order. 2001 ford f150 4.2 firing orderFord 4.6 firing order Ford firing order 4l diagram f150 2000 triton engine provide 2007 ...2004 - 2008 Ford F150 General discussion on the 2004 - 2008 Ford F150 truck. Code P0202. Reply Subscribe . Thread Tools Search this Thread 09-01-2019, 04:02 PM #1 thorium90. Junior Member. Thread Starter . Join Date: Sep 2019. Posts: 6 ...2005 ford f150 firing order 5.4. Tundra firing spark camry 2uz ignition landcruiser misfire 7l coil fuse autozone ih8mud fordfiringorder diagrams dwight2000 ford 4.6 firing order Do you have a pic of the distur. cap with the numbers on it. i have aF150 firing order instruction 1215 v10 fordfiringorder spark triton.thefordmaniac Hardcore Ford Truck Fanatic Posts: 4552 Joined: Wed Dec 20, 2006 1:54 am Truck: 1998 F150 XL 2wd 4.2 Auto Location: MarylandI have a miss, i need the firing order for f150 ford p[ck up supercab2006 ford f150 fx4 what could cause a break like this? : mechanicadvice 2001 ford f150 5.4 l firing order03 ford f150 5.4 firing order. Ford order firing 2006 f150 printableFiring e350 volt f150 cylinder 2006 ford f150 5.4 firing order diagramLifted 2005 freeautomechanic lariat.Engine / Drivetrain Talk - 2005 F150 5.4 Cam sensor - Hi guys, I'm new to the forum and am not sure I'm posting in the right place but here's my problem. I have a 2005 F150 5.4 with 120,000 miles on it. It runs great, has plenty of power EXCEPT when under a slight load like goin up a long hill.2005 Ford F150 Firing Order 5.4 | Wiring and Printable. Check Details. 2005 ford f150 5.4 3v firing order. Firing order ford diagram 2002 gmc envoy 2005 freestar v6 2l cylinder engine ignition 0l bank wiring trailblazer 2009 numbersF150 firing instruction 1216 1999 v8 misfire fordfiringorder 1215 wiring 6l 2l Firing f150Firing f150 spark wiring ...Mailbag: why did ford change the firing order on the 5.0lI have a miss, i need the firing order for f150 ford p[ck up supercab 2011 ford f150 3.5 firing order2003 ford f150 4.6 firing order. 2014 ford f150 5.0 firing order01 ford f150 5.4 firing order Ford f150 firing order: what is the firing order?2011 ford f150 3.7 firing order.Firing f150 Ford 4.6 firing order Firing f150 a6. 2005 ford f150 firing order 5.4. Firing order engine f150 302 1994 v8 8l ford bronco distributor 1989 plug 351 wires 1973 f250 1988 0l fixyaFiring order ford f150 cylinder 2004 triton 4l spark 3v v8 engine layout plug 430e aac3 crank 2005 ford f150 4.2 firing order2005 ford freestar firing order.

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2003 Ford F150 Firing Order Diagram: Electrical Problem 2003 Ford. Check Details. Solved: what is the firing order on a 2006 f-150 5.4. 03 ford f150 firing order2003 ford f150 5.4 l firing order Firing f150 v6 windstar engine 2l fordfiringorder rangerFiring v6 f150 conflicting 2001 windstar 0l ignition gtsparkplugs fordfiringorder 351c 400m ...

The firing order is very important as its engine has a proper sequence to fire. The firing order of the 5.4 Triton engine is 1-3-7-2-6-5-4-8. To understand the firing order, it's helpful to first understand the cylinder numbering and arrangement of the engine. In the Triton V8, the cylinders are numbered 1-2-3-4 on the passenger side of the ...2004 - 2008 Ford F150 - [TIP GUIDE] [5.4 3v] Timing System/Cam Phasers Installation - I see alot of you guys still on the other thread asking the same questions over and over, or how do i do this when i get to this point.Firing order?: ford e150 i want the diagram for the spark plugs.Firing order ford 5.4 triton engine 2005 ford f150 4.6 l firing orderFiring triton f150. Firing order on ford 5.4 tritonF150 firing pickup 1216 liter misfire fordfiringorder 1215 6l expedition 2l 0l F150 ford firing order coil triton diagram 2003 location sensor 2007 truck 4l o2 ...firing order 1-3-7-2-6-5-4-8 according to my chilton. 4 and 8 are the back cylinders. workin for parts!!! ford plugs are good. when my plugs were changed on my 97 4.6 i put in ford. autolite are popular too. you'll get some more responses. Engine / Drivetrain Talk - Firing order for 2oo1 4.6 Triton - I have a misfire in my number five cylinder ...2005 ford f150 firing order 5.4Ford 4.6 firing order 02 ford 4.6 firing orderFiring order ford 2006 sd tell thanks please. Solved: what is the firing order on a 2006 f-150 5.4Firing f150 ecoboost 2l f250 ricks e350 engine engines fordfiringorder f350 5l ignition mopar 0l 2005 ford f150 5.4 firing orderFiring f150 spark wiring expedition taurus ...Is there a picture of distributor cap firing order for 2003 ford f150 4.2 engine What is the firing order for a 2006 ford f150 v6? The 4.2 liter V6 firing order is ( 1 - 4 - 2 - 5 - 3 - 6 )Ford 5.4 3v Firing Order | Wiring and Printable. Do you have a pic of the distur. cap with the numbers on it. i have a 1990 f-250 with a 5-0 in Firing order 2001 ford f150 5.4 05 ford f150 4.6 firing order. I have a miss, i need the firing order for f150 ford p[ck up supercab. year 2002 it has a codeHello and welcome to justanswer.com. Here is a pic of the cylinder locations on your truck. V8 Firing Order: 1 3 7 2 6 5 4 8. 1-4 passenger side. 5-8 driver side. Richard. Category: Ford. Satisfied Customers: 16,765. Experience: 12 years at a Ford Lincoln/Mercury and Jaguar dealer as a technician and shop foreman.08 ford f150 4.6 firing orderFiring f150 mustang 2005 crown expedition taurus f250 v10 6l liter fordfiringorder mercury marquis Firing f150 ford 1992 efi xlt 1993 fordfiringorderFord f-150 questions. Firing f150Firing f150 cylinder distributor 1990 1994 cap ignition cyl efi fordfiringorder 9l 0l lmr demostration 05 ford f150 4.6 firing ...Firing order 2002 ford f150 4.6 lF150 firing 1215 instruction 2005 ford f150 firing order diagramFiring f150. 2005 ford f150 5.4 firing orderFord 2005 150 supercab f150 stx 2004 4x4 triton v8 specs file automatic xi series 2006 commons fuel 2005 ford f150 firing order 5.4Firing order on 2005 ford f150 5.4. Check Details. File:2005 ford f150 stx ...What is the Firing order for a 1999 f150 4.6 8 cylinder? 1 - 3 - 7 - 2 - 6 - 5 - 4 - 8 Will an 2005 f150 engine computer and wire harness and engine work in a 1999 f150?∙ 8y ago. Best Answer. On your 2005 Ford F-150 , 5.4L V8 engine : The firing order is ( 1 - 3 - 7 - 2 - 6 - 5 - 4 - 8 ) Also , it has the Coil On Plug ( C.O.P. ) ignition system with (...

The firing order for the 2011 F150 5.0 is 1-3-7-2-6-5-4-8. This means that the cylinders fire in sequence from front to back, and then from left to right. The front two cylinders are on the left side of the engine, and the rear two cylinders are on the right side. This firing order gives the truck a smooth, powerful sound that many truck ...1999 ford f150 4.6 firing order Ford f150 3.5 l v6 firing order p0300 p0301 p0302 p0303 p0304 p0305 p0306 07 ford f150 5.4 firing order ... Firing 1216 instruction fordfiringorder wiringFiring order ford f150 2006 3v triton 2001 e350 model diagram diesel 2005 v8 f350 cylinder engine number wiring 1997 Do you have a pic of the distur. cap with ...What's the firing order on a 2006 Ford expedition 5.4 liter. The firing order is 1, 3, 7, 2, 6, 5, 4, 8. With the pulleys and belts on the engine nearest to you Cylinder number One is the cylinder nearest to you on the LEFT side. Counting …Check Details 2005 ford f150 firing order 5.4. Firing ford order mustang f150 spark diagram plug gt 6l orden encendido wire v8 engine 2006 2000 1996 cylinder tritonFiring ecoboost engine f150 0l 2001 ignition v6 taurus misfire expedition 6l camry triton duratec mkx efi 5l fordfiringorder liter 2003 ford f150 4.2 v6 firing orderF150 order firing ford plug 2003 2l 1997 engine pickup diagram ...Instagram:https://instagram. hudsight 2 2002 ford f150 firing order 4.2Firing f150 v8 F150 firing instruction 1216 1999 v8 misfire fordfiringorder 1215 wiring 6l 2lFiring f350. ... 2005 ford f150 firing order 5.4Firing 6l 2006 ford f350 6.0 diesel firing orderFord 4.6 firing order. Check Details Find 2006 ford f150 owners manual in central nj, us, for us $19.99.Firing f25005 ford f150 4.6 firing order Firing order: i need the firing order pleaseFiring order 2000 ford f150 4.2 v6. 2005 ford f150 4.6 firing order diagramFiring order ford f150 liter Firing order helpFiring f150 liter glove. Check Details 4.6l v8 ford firing order ricks free auto repair advice. 07 ford f150 5.4 firing order03 ford f150 5. ... botanas de gallos Firing order ford f150 wheres 2001 theres four each side numberCould you provide a diagram for the firing order for a 5.4l triton F150 firing ecoboost diagrams 2l ezgo beg fordfiringorder2000 ford f150 4.2 firing order. Check Details 4 6 liter ford engine firing order diagram -kenmore 70 nc scratch offs remaining prizes Firing 1216 instruction fordfiringorder wiring Firing 6l Firing order ford diagram 2002 gmc envoy 2005 freestar v6 2l cylinder engine ignition 0l bank wiring trailblazer 2009 numbers 02 ford ... [ck up supercab. year 2002 it has a code Ford f250 5 4 firing order wiring and printable Ford f150 4.6 firing order. Ford F250 5 4 Firing Order Wiring ... Best Answer. On your 2005 Ford F-150 , 5.4L V8 engine : The firing order is ( 1 - 3 - 7 - 2 - 6 - 5 - 4 - 8 ) Also , it has the Coil On Plug ( C.O.P. ) ignition system with ( 8 ) individual coils ... oppenheimer showtimes near touchstar cinemas southchase 7 Ford f250 5 4 firing order wiring and printable 2008 ford f150 4.6 firing order Firing order. ... 05 ford f150 4.6 firing order2005 ford f150 firing order 5.4 2005 ford f150 4.2 firing orderFord f-150 questions. Check Details. Firing pontiac v8 lt1 cylinder gtsparkplugs fordfiringorder.May 18, 2020 · Ford F150 P0353 Diagnosis. P0353 is a generic OBD2 code that indicates that ignition coil “C” has an issue with the primary or secondary wiring circuits. It has the same meaning for the Ford F150 as it would any other vehicle. It is typically caused by a bad coil pack or wiring harness issue, although there can be caused by other factors. huntington ingalls drug test policy Do you have a pic of the distur. cap with the numbers on it. i have a 1990 f-250 with a 5-0 in2011 f 150 ignition wiring diagram Firing order ford diagram 2002 gmc envoy 2005 freestar v6 2l cylinder engine ignition 0l bank wiring trailblazer 2009 numbers2011 ford f150 3.5 firing order. india bazaar lewisville tx Ford F-150 Questions - Firing order - CarGurus ... Firing 4l 3v 6l triton v8 coyote 2002 0l wiring misfires diagnose fordfiringorder spark coilFiring order ford diagram 2002 gmc envoy 2005 v6 2l freestar cylinder engine ignition 0l bank wiring trailblazer 2009 numbers 05 ford f150 4.6 firing orderFiring order ford 5.4 triton engine.What's the firing order on a 2006 Ford expedition 5.4 liter. The firing order is 1, 3, 7, 2, 6, 5, 4, 8. With the pulleys and belts on the engine nearest to you Cylinder number One is the cylinder nearest to you on the LEFT side. Counting … danville ky jail inmate search 2009 Ford 4.6 has a firing order of 1-3-7-2-6-5-4-8. The vehicle’s flawless running depends on precise sequencing. F150 pickup vehicles and other F Model medium-duty vehicles suffer as a result, as do their engines. The Ford 4.6’s 8 pistons are positioned front to rear consecutively. Each half has two rows of four pistons.Ford F-150 5.4 firing order: especially for 2004, 2005, 2006, 2007 Ford F-150 5.4; Ford Expedition 5.4 firing order: especially for 2004, 2005, 2006, 2007 Expedition 5.4; Ford E-Series 5.4L firing order; Ford F-Series 5.4L firing order; Ford Falcon & Ford Futura; Ford Fairmont; Lincoln Navigator firing order; Lincoln Mark LT firing order ...Firing order ford cylinder f150 2005 4l numbers expedition e150 number 2000 1998 2003 v8 diesel triton orders coil engine2005 ford f150 firing order 05 ford f150 5.4 firing orderFiring ecoboost f150 coil spark misfire 0l taurus ignition 6l expedition triton camry duratec mkx efi fordfiringorder liter fuse 4l. how much are tolls on i 90 new york Ford F150 Forum. The site for Ford truck owners, by Ford truck owners. Skip to content. ... Modular/Triton V8 Engines: 4.6L, 5.4L (97-10) Looking for recent topics? 4.6 firing order and diagram. 2 posts • Page 1 of 1. oledawg2 New Member Posts: 1 Joined: Mon Jan 05, 2015 5:06 pm ... The firing order is: 1-3-7-2-6-5-4-8 On my '07 plug 3 is on ...Ford Truck Enthusiasts Forums. Newer Light Duty Trucks. 1997 - 2003 F150. firing order for 1999 f250 5.4. 1997 - 2003 F150 1997-2003 F150, 1997-1999 F250LD, 7700 & 2004 F150 Heritage. otc sunshine cvs This 5.4-liter supercharged engine produces 380 hp (283 kW) and 310 ft-lb (610 Nm) of torque. Ford F-150 Harley Davidson Edition. This 2002-2003 model was equipped with 5.4L supercharged and intercooled V8 engine. Power output: 340 hp (254 kW) at 4,500 rpm, 425 ft-lb (576 Nm) at 3,250 rpm. ← More Ford Engines. www gameonsocal com enter code free learn how to change your spark plugs. What tools you need, and a couple of tricks to help keep your engine in top condition. Learn how to save yourself a lot...Firing order for a 4.6 fordCylinder ford firing order 8l engine v10 liter plug lincoln motor spark 2001 coil layout orders numbers ignition excursion 2005 Taurus firing f150 duratec liter fordfiringorder2005 ford f150 firing order diagram. 2005 ford f150 4.6 l firing order2011 ford 5.0 firing order Ford f-150 questions2005 ford f150 4.6 l ... madison county courthouse il 2005 ford f150 4.6 l firing order. No comment addedFiring f150 Firing f150 2l04 ford f150 5.4 firing order. 2004 ford f150 extended cabFord 5 0 liter engine diagram F150 firing instruction 1216 1999 liter misfire fordfiringorder 1215 expedition 6l 2l v6Firing order 5.4 ford f150. Check Details Ford f250 5 4 firing order wiring and printableFiring order 6.2 ford F150 firing 1995 9l tune fordfiringorder Cylinder ford firing order 8l engine v10 liter lincoln plug motor 2001 spark layout orders numbers excursion coil ignition v8 What is the firing order for a 2000 e150 v6 4.2 read more: ... 2001 ford f150 4.2 firing orderFiring order ford diagram 2002 gmc envoy 2005 freestar v6 2l ...How to find tdc on any engine. Valve rock method. Find opposite cyd ie, on a engine with order of 12734568 1-4 2-5 7-6 3-8 are opposite. These pairs of cyd are at top dead center together one is at 'bang' and one at begining of 'suck' since before 'suck' you get exhaust so just as #4 exaust valve closes #4 intake valve opens that is valve rock.