Firing order for 8n ford tractor

Make sure you have power to the coil and to the points. With the ignition on and the points closed, use a screwdriver to open the points. You should see a good spark. If you have power to the distributor and the points are opening/closing (crank the engine with the cap removed) then it has to be bad plug/coil wires.

The Ford 8N tractor is a popular choice among farmers and vintage tractor enthusiasts. Its reliable performance and simple design make it a versatile and durable machine. ... It is responsible for distributing electrical current from the ignition coil to the spark plugs in the correct firing order. The distributor contains a rotating rotor that ...Firing Order 1-24-3 Battery To Relay Cable Starter Motor Relay Starting Motor To Relay Cable Generator Black- Reld Tracer Primary M"re Coil To Distributor Low Tension Coil Battery To Ground Cable Ammeter Yellow Terminal Yellow Red- Green Tracer Lock Red- Blue Tracer Yellow Battery Regulator Yellow Starter Motor [Starter Switch Yellow- Black TracerIf it is choking it would have gas dripping out the air intake of the carb. Things that might be wrong are carb set to lean, Timing off. A couple plug wires hooked up wrong and out of firing order. Firing order is 1,2,4,3. #1 cylinder up by the radiator. Point gap for the front mount is 0.015 and for the side mount 0.025.Harry Ferguson,9N FORD is Dedicated to Antique Tractors of All Kinds, 8n, 2n, 9n, ford, tractors, fordson, antique, dearborn, ferguson,john deer. When the 9n Ford appeared in the late thirties they were perhaps one of the most important technological developments in America and increased a man's productivity on the farm by multiples. More modern …JFB. 02-21-2006 17:59:13. Report to Moderator. Re: FIRING ORDER FORD 641 GAS in reply to Jim.UT, 01-28-2006 18:15:12. I am sorry to be so unknowning but how does that ( Firing order 1-2-4-3 ) relate to the distributer in placing the correct wire to the proper position on the distributer ?Jun 11, 2022 ... 12 Volt Conversion Ford 9N 2N 8N & Electronic Ignition ... Ford 640 Tractor Firing Order (response to @tractorman4461 ) ... 8N Front Mount Tractor.

Chris Jones said: (quoted from post at 12:14:11 04/28/08) I know it's not an N but does anyone know the firing order for a 641? Same as the Ns 1-2-4-3 Ford 641 General tractor information: Manufacturer: Ford Model: 641 Type: Farm/Agricultural tractor Series: 601 Workmaster Years produced: 1957 - 1961 Total built: -unknown- Factory: -unknown ...Apr 24, 2018 ... Our Tractor has no spark!!! We don't know completely why, so any comments/suggestions would be great. We are probably going to try again ...Ford 9N, 2N & 8N Discussion Forum: Show Parts for Model: Discussion Forums > Ford 9N, 2N ... The reason # 4 is the cyl in question is because that is the "middle" cyl in the firing order 1-2-4-3. The "middle cyl should always be in overlap. for instance, on a chevy the firing order is 1-8-4-3-6-5-7-2, so if we wanted to see if the valve timing ...Answer: This is a common question from new 9N-2N and early 8N owners. The front mount distributor engine has no external timing marks. Instead, the timing is set mechanically with the distributor out on the bench. The drive tang on the back end of the distributor is offset and it fits in an offset slot on the front of the camshaft, so you ...Re: HELP: Ford 2000 4 Cyl Gas Firing Order in reply to Dave_N_Ga, 03-28-2004 17:23:25. Your 2000 firing order is 1243 clockwise with about 7:00 being position for #1 nipple on dist. cap. If this sputters or backfires, make 1:00 position for #1. Then set timing with timing light if possible.

The firing order IS 1243, but that is taken into account, with the numbering of the distributor cap. The numbers marked on the cap are in the sequence 1243, going CCW, starting at number 1. You put the wire from each plug in the cap nipple with the corresponding number, and they will be in correct firing order.8n side mount distributor cap and rotor problems. My tr5actor has been running like crap lately, and after checking everything else, I pulled the dist cap, at which time the rotor fell out in three different peices. It was barley running before this happened. I bought a new rotor and tried to crank it up and it acted as if it go tno spark.To further clarify, the 1243 is the firing order, and the cylinders are numbered from 1 at the front to 4 at the rear. The cap numbers just help make sure you …According to the specs the fireing order is 1-2-4-3 if Im not mistaken. The old 2n ran rough and missed so my son in law after tuneing it up with all new parts,found a thread somewhere where a fellow had a problem similar to ours and someone told him to use a fireing order of 1-2-3-4. Well my son in law tried it and the engine smoothed right ...Re: To-35 firing order in reply to canso, 10-24-2006 20:47:57. The plug nearest the radiator is number one. The firing order is 1-3-4-2 counterclockwise in the distributor cap. Looking down on the distributor cap the top hole on your left side should be number one but that is not always so the distributor can be installed so any one of the ...Ford Tractor Service Specifications

Yannick bisson how tall.

Firing order is 1,2,4,3 on all Ford tractors, with Plug#1 at the front most end of block nearest the radiator. The front mount is shown in Bruce's picture. For the side mount you need to follow the timing procedure as outlined in the OEM 8N Operator's Manual and the I&T FO-4 Manual. For wiring diagrams -see manuals mentioned. Re: distributor firing order (ford 800) in reply to ronnie campbell, 05-02-2008 19:58:52. Pull #1 spark plug, put your finger in the hole, crank engine over untill compression blows your finger out the spark plug hole. Then check and see where the rotor is pointing, it should be pointing at #1 plugwire on your distributor cap.HTH. Bob. 03-31-2007 21:06:31. Report to Moderator. Re: 8N timing/firing in reply to joe mitchell, 03-31-2007 20:36:18. When the engine is running at high idle (2000 RPM's) the spark timing (as seen with a timing light) is supposed to advance to 16 to 18 degrees.This firing order is crucial for the engine to run smoothly and efficiently. If the firing order is incorrect, it can lead to misfires, loss of power, and even engine damage. This is why it is essential to maintain the correct firing order in your Ford 8n. But how does the firing order affect the performance of the tractor? Well, the firing ...• 8N Manual Wiring Diagrams • NAA Manual Wiring Diagrams . Best internet source . of information and help . for old Ford tractors. www.ntractorclub.com. Ford Wiring Diagram . POINTS COIL 12V ... Wiring Diagrams & Harnesses for Ford Tractors Created Date: 3/27/2011 5:36:15 AM ...

The Ford 8N 119.7 cu in firing order is 1-2-4-3 and the engine itself is a two-liter four-cylinder that provides about 20 horsepower. For a working machine as light as the 8N, it’s more than enough, but problems occur when the spark plug connections get torn up or cut off.JFB. 02-21-2006 17:59:13. Report to Moderator. Re: FIRING ORDER FORD 641 GAS in reply to Jim.UT, 01-28-2006 18:15:12. I am sorry to be so unknowning but how does that ( Firing order 1-2-4-3 ) relate to the distributer in placing the correct wire to the proper position on the distributer ?According to the specs the fireing order is 1-2-4-3 if Im not mistaken. The old 2n ran rough and missed so my son in law after tuneing it up with all new parts,found a thread somewhere where a fellow had a problem similar to ours and someone told him to use a fireing order of 1-2-3-4. Well my son in law tried it and the engine smoothed right ...Re: HELP: Ford 2000 4 Cyl Gas Firing Order in reply to Dave_N_Ga, 03-28-2004 17:23:25. Your 2000 firing order is 1243 clockwise with about 7:00 being position for #1 nipple on dist. cap. If this sputters or backfires, make 1:00 position for #1. Then set timing with timing light if possible.Starting At The Distributor Cap What Is Order For Spark Plug Wires To Each Cylinder With Line On. Golden Jubilee Firing Order Yesterday S Tractors. Ford 8n Tractor Specification Features Images 2022. Tracfog dramm 15 6 feet 1942 mullins sea eagle 36550 antique boat america firing order yesterday s tractors ford 8n tractor hp …ford3000 series firing order. Re: ford3000 series firing order in reply to sean oleary, 10-10-2005 06:56:22. According to the Ford shop manual, it's 1-2-3 for all 1000-series models and years. We sell tractor parts! We have the parts you need to repair your tractor - …Dan and Rachel show how to install points, condenser, rotor, coil, ignition wires, cap and spark plugs into a Ford tractor. They demonstrate on a Ford 8N sid... Re: 8N FORD FIRING ORDER in reply to DOC, 10-20-2003 18:28:14. Firing order is 1243 and the front cylinder is number one, next one back is 2 then 3 then last is 4. We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Apr 24, 2018 ... Our Tractor has no spark!!! We don't know completely why, so any comments/suggestions would be great. We are probably going to try again ...9N firing order and wire locations in dist ributor. Can someone help me with the firing order for my 9N Ford, and also the wire positions on the distributor cap (if read as a clock, to the 1 o'clock position, to the 4 o'clock position, to the 7 o'clock position and the 10 o'clock position). Sure would appreciate the information and Thank You.

Feb 27, 2024 · There are only three external adjustments on the 9N/2N/8N tractor carbs. The image provided below is looking at the front end of the carb, the engine would be on the right side of the image if shown. 1 IDLE SPEED SCREW —Located on the throttle lever. 2 IDLE MIXTURE SCREW —Small screw near connection to manfold pointing to the side.

Ford 8N tractor engine. Tractors > Ford > 8N. Tractors; Lawn Tractors; Compare; Articles/News; Tractor Shows; Contact ... Firing order: 1-2-4-3 Starter volts: 6 Coolant capacity: 12 qts 11.4 L: Engine Oil: Oil capacity: 6 qts 5.7 L: Ford 8N Engine: Image courtesy of Javier Cardozo: Page information: Contact: Peter Easterlund: Updated on …Re: Firing order for NAA Ford tractor in reply to Jackey Lamb, 01-01-2007 14:42:04. The firing order is 1,2,4,3 Pull the plug on the 1 cylinder and turn motor over until that cylinder comes up on compression the nipple that the rotor is pointing to will be number 1. The firing order is stamped on the distributor side of the motor CNESLER.When it comes to maintaining your Ford 3000 tractor, finding authentic used parts can be a cost-effective solution. Before delving into the different methods of finding used Ford 3...Ford: gasoline: 4-cylinder 8-valve: liquid-cooled: Displacement: 119.7 ci 2.0 L: Bore/Stroke: 3.188x3.75 inches 81 x 95 mm: Compression: 6:1 6.7:1 * After s/n 85000: … Support the tractor under the engine assembly, Re- move the cap screw that secures the king pin in position. Raise the radiator a sufficient distance to clear the king pin. Remove the king pin as shown in fig. 35. Remove the radius rod from the front axle assembly. Member. Mar 5, 2015. #1. Ummm, While the Autolite 3116 mentioned above are a great plug (I run them in all the Internationals and Farmalls), They will not fit in a Ford N. I use the 437's there. Autolite 437 has a 14 mm thread diameter. Autolite 3116 has a …Make sure you have power to the coil and to the points. With the ignition on and the points closed, use a screwdriver to open the points. You should see a good spark. If you have power to the distributor and the points are opening/closing (crank the engine with the cap removed) then it has to be bad plug/coil wires.When it comes to maintaining and repairing your Ford 3000 tractor, investing in high-quality parts is essential. However, buying brand new parts can sometimes be expensive, especia...Firing order for 1952 ford 8n tractor; Ford 8 Cylinder Firing Order. Using an ohmmeter, check for any resistance across the points. If there are problems with weak spark or and engine that runs good for a while then starts a random missfire, the ignition switch may be the problem. Durability is extremely important for spark plug wires on a farm ...The Ford 8N type tractor is part of the N Series of tractors. The 8N is a kind of Utility Tractors and that is mostly used for Agriculture Tractors purposes. A 18.35 horsepower engine powers the 8N tractor. This …

Minneapolis strip bars.

Septa bus 12.

By: John Smith of Old Ford Tractors. Model or Series 9N 2N 8N NAA 600 700 800 900 501 601 701 801 901; Fuel Capacity: 10 gallons Report to Moderator. Re: Firing order in reply to Sonny Heath, 08-05-2000 12:29:33. Think the 800 is the same as the Jubilee. It's 1,2,4,3. With the number one plug being closest to the radiator. The distributor cap should have a number one marked on top at the base of one of the four nipples, and the rotation is in a clockwise direction. The Ford N-series tractors were a line of farm tractors produced by Ford between 1939 and 1952, spanning the 9N, 2N, and 8N models. [1] The 9N was the first American-made production-model tractor to incorporate Harry Ferguson 's three-point hitch system, a design still used on most modern tractors today. It was released in October 1939.Ford 8n tractor is powered by a four-cylinder gasoline engine. Ford 8N tractors are outfitted with a four-speed constant mesh transmission. ... Firing Order: 1-2-4-3: Max. Working Speed: 1500 RPM 2000 RPM: Torque Speed: 1500 RPM: Horsepower: 15 kW 20 HP: Torque Power: 84 lbs-ft 114 N-m: Displacement: 120 cu. in. 1962 cc: Bore and …The firing order IS 1243, but that is taken into account, with the numbering of the distributor cap. The numbers marked on the cap are in the sequence 1243, going …#2 · Jul 25, 2021. I would suggest: -checking that the valves are moving at the right time/sequence. -when a cylinder is at TDC on the compression stroke, the distributor …Place a chock in front of each rear wheel. Look at the engine and find the four spark plugs. Put on the safety glasses. Lift the distributor cap off its base without disconnecting any of the wires. Find the rotor in the middle of the distributor. Reach up to the floor of the tractor.Dec 19, 2013. #1. Hey guys, I have a Ford 8N that I have been fighting with for the past 4 to 5 months. The problem is that the tractor runs fine at idle 90% of the time, doesn't matter if its high or low idle it runs. But when I put it in gear and try to drive it. it backfires multiple time and loses all power, then push the clutch in and it ... Ford Motor Co., Birmingham, Mich. DATE TESTED: June 15 to June 27, 1950. Weighing 4043 pounds, the Ford 8N featured 10-28 rear and 4.00-19 front tires. Also included were forward speeds of 3.23, 4.16, 5.72 and 11.92 mph. Test B and F were made with carburetor set for 100% maximum belt horsepower and data from these tests were used in ... When it comes to the Ford 8N plug order, there are a few things you need to know. First, the plugs come in two different sizes – 7/8” and 1”. You will also need to know the firing order for the engine, which is 1-2-4-3. This order will tell you which plug needs to go in which cylinder. When changing the plugs, it is best to start with the ... ….

Dec 5, 2023 · We had those equipped with an 8N engine and those with an upgraded 2.2-liter one, so let’s see what the differences are and how you can utilize the firing order for the benefit of the tractor’s engine longevity: Ford Jubilee 2.0L firing order. The first engine option we’ll discuss is the famous 8N engine that was used in Ford’s tractors ... Answer: This is a common question from new 9N-2N and early 8N owners. The front mount distributor engine has no external timing marks. Instead, the timing is set mechanically with the distributor out on the bench. The drive tang on the back end of the distributor is offset and it fits in an offset slot on the front of the camshaft, so you ...Dec 5, 2023 · We had those equipped with an 8N engine and those with an upgraded 2.2-liter one, so let’s see what the differences are and how you can utilize the firing order for the benefit of the tractor’s engine longevity: Ford Jubilee 2.0L firing order. The first engine option we’ll discuss is the famous 8N engine that was used in Ford’s tractors ... Next is the wiring. The 8N used specific components. Early N's, 39-50, use the front mount distributor - notorious for misunderstanding to some who don't know the system. Later 8N's, 50-52, began the side mount distributor system. Each is wired slightly different and it matters which one you have.IGNITION SYSTEM. All N-Series Tractors - Ford-Ferguson 9N, 2N, and Ford 8N. If you are having trouble with weak spark, no spark, or burned coils, you may find some helpful information on my new WON'T START page, or on my COIL PROBLEMS page. If your ignition switch is more than a couple of years old, it's probably a good idea to replace it.Re: TO-30 Firing Order in reply to Norman, 06-03-2001 12:15:13. Norman, Firing order is 1-3-4-2 .You should see this cast on the block on the same side as the distributor right below the valve cover . On my tractor anyway , if you face the motor and the distributor , the near left post of the distributor goes to # 1 , near right post goes to #3 ...Serial numbers on Ford tractors are stamped on the engine block. You can usually locate the serial number on a flat part of the engine casting, just above the oil filter on the lef...Re: TO-30 Firing Order in reply to Norman, 06-03-2001 12:15:13. Norman, Firing order is 1-3-4-2 .You should see this cast on the block on the same side as the distributor right below the valve cover . On my tractor anyway , if you face the motor and the distributor , the near left post of the distributor goes to # 1 , near right post goes to #3 ...Ford 8n tractor firing order Firing order for 8n ford tractor, Firing order is 1,2,4,3 on all Ford tractors, with Plug#1 at the front most end of block nearest the radiator. The front mount is shown in Bruce's picture. For the side mount you need to follow the timing procedure as outlined in the OEM 8N Operator's Manual and the I&T FO-4 Manual. For wiring diagrams -see manuals mentioned., When it comes to maintaining your Ford 3000 tractor, finding authentic used parts can be a cost-effective solution. Before delving into the different methods of finding used Ford 3..., Place a chock in front of each rear wheel. Look at the engine and find the four spark plugs. Put on the safety glasses. Lift the distributor cap off its base without disconnecting any of the wires. Find the rotor in the middle of the distributor. Reach up to the floor of the tractor., The firing order of the Ford 302 is 1-5-4-2-6-3-7-8. The rotor direction under the distributor for this engine is counterclockwise. Ford numbers the cylinders sequentially from the..., Turn on the fuel valve feeding the carburetor and check for leaks, tighten as necessary. Put the engine throttle at idle and start the tractor. This may require more than one set of hands: adjust the idle mixture screw out until the idle starts to stumble, then turn the idle mixture screw in 1/2 turn. Set the idle speed screw to 400 rpm., Distributor Cap for tractors with front mount distributor and generator or alternator mounted on the RIGHTÂ side as sitting in the seat. Ford - Fits: 2N, 8N (up to SN: 263843), 9N; Replaces: 9N12106C * This cap fits our ABC060 front mounted distributor* Does not include gasket; if you need the gasket also, order ABC064 gasket set* For tractors ..., Help! I have my New Holland baler motor (134 CID Ford) scattered all over my garage. Have all the new parts and machine work all done. Started putting it together and now as I turn it over, it appears to me that the lifters are saying that my firing order is 1-3-4-2. Thought it should be 1-2-4-3!, Dec 19, 2022 · This firing order is crucial for the engine to run smoothly and efficiently. If the firing order is incorrect, it can lead to misfires, loss of power, and even engine damage. This is why it is essential to maintain the correct firing order in your Ford 8n. But how does the firing order affect the performance of the tractor? Well, the firing ... , Mar 15, 2014 · Connect the plug wire to #1 cylinder to the #1 nipple. #1 cylinder is closest to the radiator. As you can see, firing order is 1-2-4-3, CCW. Post back w/ results or more questions. And in the future, when you ask a question here, it would be very helpful if you'd ID your tractor as a 1944 2N. And tell us the voltage (6v or 12v) , make that 1,2,4,3 CCW. . . Dell (WA) Re: Re: Firing order for 1965-67 Ford 801 in reply to norbert kanzler, 03-19-2002 18:13:47. We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts., Next is the wiring. The 8N used specific components. Early N's, 39-50, use the front mount distributor - notorious for misunderstanding to some who don't know the system. Later 8N's, 50-52, began the side mount distributor system. Each is wired slightly different and it matters which one you have., , , 2. Tractor was painted approximately 2.5 years ago. Timing was set at that time and has not been adjusted since. Distributor has not moved or been adjusted. 3. Yes, all plug wires were replaced with new and all traced and installed with #1 closest to radiator, and firing order 1,2,4,3. 4. Yes clip under rotor on shaft is present. 5., Ford: gasoline: 4-cylinder 8-valve: liquid-cooled: Displacement: 119.7 ci 2.0 L: Bore/Stroke: 3.188x3.75 inches 81 x 95 mm: Compression: 6:1 6.7:1 * After s/n 85000: …, The Ford N-series tractors were a line of farm tractors produced by Ford between 1939 and 1952, spanning the 9N, 2N, and 8N models. [1] The 9N was the first American-made production-model tractor to incorporate …, The model of your tractor (2N, 9N, 8N, NAA, etc). 2. If it is 6v or 12v. ... More details on my tractor. * It's a Ford 8N, I believe a 1950 model. ... I took the plugs off the cap one at a time and replaced one at a time to ensure the same firing order. I started #1 plug wire where "1" was marked on the distributor cap., IGNITION SYSTEM. All N-Series Tractors - Ford-Ferguson 9N, 2N, and Ford 8N. If you are having trouble with weak spark, no spark, or burned coils, you may find some helpful information on my new WON'T START page, or on my COIL PROBLEMS page. If your ignition switch is more than a couple of years old, it's probably a good idea to replace it., Ford 8N Tractor – The Ford 8N Tractor is a lineup from the N-series tractors produced by Ford from 1939 to 1952. Similar to this lineup, the N-series also has others product series, including the 2N and 9N models. ... Firing order: 1-2-4-3: Starter volts: 6: Oil capacity: 6 qts [5.7 L] Coolant capacity: 12 qts [11.4 L] Sparkplug gap: 0.025 ..., Nov 14, 2018 ... cylinder in a multi-cylinder engine. The firing order of an engine is the sequence ... Ford 640 Tractor Firing Order (response to @tractorman4461 )., firing order is 1-2-4-3 one being at radiator.If yours is not in the same holes in cap as shown dist has probably been removed and reinstalled out of time,if its a side …, Answer: This is a common question from new 9N-2N and early 8N owners. The front mount distributor engine has no external timing marks. Instead, the timing is set mechanically with the distributor out on the bench. The drive tang on the back end of the distributor is offset and it fits in an offset slot on the front of the camshaft, so you ..., Ford Tractors Discussion Forum: Order Ford 601 Parts Online: Discussion Forums > Ford Tractors > firing order for 601? ... Charles(Mo) 06-03-2004 15:33:25. Report to Moderator: Is the firing order on a 601 4cyl. the same as my 8n. 1 2 4 3. Thanks in advance Charles [Log in to Reply] bobeque 06-04-2004 19:18:04. Report to Moderator, Distributor Cap for tractors with front mount distributor and generator or alternator mounted on the RIGHTÂ side as sitting in the seat. Ford - Fits: 2N, 8N (up to SN: 263843), 9N; Replaces: 9N12106C * This cap fits our ABC060 front mounted distributor* Does not include gasket; if you need the gasket also, order ABC064 gasket set* For tractors ..., 8n side mount distributor cap and rotor problems. My tr5actor has been running like crap lately, and after checking everything else, I pulled the dist cap, at which time the rotor fell out in three different peices. It was barley running before this happened. I bought a new rotor and tried to crank it up and it acted as if it go tno spark., Can someone help me with the firing order for my 9N Ford, and also the wire positions on the distributor cap (if read as a clock, to the 1 o'clock position, to the 4 o'clock position, to the 7 o'clock position and the 10 o'clock position). Sure would appreciate the information and Thank You., John Deere Gas 1010 firing order. anyone know the firing order of a 1010 gas engine. Re: John Deere Gas 1010 firing order in reply to dpls, 04-06-2006 04:41:56. We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts., New User. Jul 10, 2008. #1. My 8N is giving me fits. It starts very hard, takes 30 seconds of grinding the starter before she slowly pops off. Once she starts, sometimes she runs great, but most times she will backfire, sputter & miss. I have put in new points and condensor, and rebuilt the carb will all new components., The GOP is mad at Trump. Trump is mad at the DOJ. The US military is ignoring the president. On his first day at work, the new White House chief of staff, John Kelly, brought in so..., Ford: gasoline: 4-cylinder 8-valve: liquid-cooled: Displacement: 119.7 ci 2.0 L: Bore/Stroke: 3.188x3.75 inches 81 x 95 mm: Compression: 6:1 6.7:1 * After s/n 85000: …, It is the forward most spark plug closest to the radiator. Next check the distributor rotor button, it should be aligned to fire #1 spark plug. That should be the plug wire to #1 spark plug. Now conect the remaining plugs to fire in the order 1-2-4-3. Then re install everything and start your engine., Jan 19, 2024. R Geiger. R. Manufacturers. Ford 9N, 2N & 8N. Figured out the smoking problem. It is not firing on thee cylinders. It is only firing on #4 cylinder. Got new wires today and going to get points and a..., According to the specs the fireing order is 1-2-4-3 if Im not mistaken. The old 2n ran rough and missed so my son in law after tuneing it up with all new parts,found a thread somewhere where a fellow had a problem similar to ours and someone told him to use a fireing order of 1-2-3-4. Well my son in law tried it and the engine smoothed right ...