8n generator test. Start the tractor. Watch for your ammeter to kick in. Measure from there to a good ground on the tractor. ) and determined the generator was the problem. I've decided to keep the 6-volt system because it works great. first motor test it. My 8N is not charging. Re: How do I re-polarize an 8N generator. Aug 4, 2022 · Rebuilding a 12v generator off a 1964 Ford 4000 diesel. OP. Was running. Very old bushing motors are still going today On 08/20/1940 Ford released the 9N-10000-C generator used around tractor serial number 9N18000, about mid-year production, – see FIG’s. Dec 10, 2013 / troubleshooting 1948 8N #6. However the cutout appearst to be shot. My 1952 side distributor 8N generator is shorting out and bearings are bad. If it had bearings no problem In today world somall electric motors with bushings no longer has oil holes. It should make 6. Read the meter display panel to find out if your 6-volt generator is producing the correct voltage. #3. To view that video, click this link. Ford Generator, 6 Volt - Remanufactured, Round, 3 wire, keyed shaft. Generator - Ford Style (5798) for Ford Tractor (s) 8N. Brushes are good and all "looked" good insdide. Ordered the replacement here on YT. Understanding the wiring diagram for the Ford 8N starter is essential for troubleshooting and maintaining this vital part. Also you will need to make substantial changes to the wiring harness to accomodate the 2-brush and regulator. www. Temporarily ground the gennys Field post to the case frame. Put me on the Waiting List. Oct 5, 1999 · I tested the farmall cub battery. The good one that is recommended for these tractors, compression is good. Operated nicely for about 2 minutes; then back to -6/7 volts Jun 2, 2020 · With the 8N's, when the tractor is started, the engine RPM's need to be rev'd up in order to excite the charging system to start generating power to feed the battery. Re: Polarizing Generator on 8N in reply to Gubba, 04-22-2006 21:35:12. Read the Voltage. So, I've been looking around for a remanufactured three post generator to replace it. Start the Generator. mhb@ufe said: Another simple test is to disconnect the negative battery cable with the tractor running. Condition:used. If it does, generator OK. This is the two brush design. Yes the 48-mid 50 8N 2 brush generator will mount right up to the 2-9N. I would like to convert this to a Ford 8N 6V system. For model Late 8N (SN# 8N 263843 or later) 1950-1952. $ 38. 0 and 6. Instructions for Testing and Installing a Voltage Regulator for the 8N Tractor. Re: 48 8N generator question in reply to Dan, 01-04-2004 11:40:09. Use the voltmeter’s black lead to touch the negative terminal of the generator. 5V at idle with your generator. I need the generator wiring schematic in order to rewire the generator to a Ford/Autolite "A" system so it will work with a Ford 6 volt voltage regulator. 9N - Overhauling the Engine: Part 3 - Block Completion, by John Korschot. Also the alternator puts out AC voltage which is then run threw diodes to chance it to DC voltage for charging the battery. 3. Oct 22, 2014 · If you have an older tractor with a generator instead of an alternator and the battery is disconnected or dies, then the generator won't put out any voltage. Safety First. Apr 27, 2013 · Is the amperage test for the six volt generator described in the Ford Tractor Shop Manual, beginning on page 61, the same for the 8N 6 volt generator? If so then I should be able to use my analog multi-tester to see if the generator is charging, correct? Feb 11, 2014 · Battery charging issue seems to be a common problem with our vintage British cars. Turns out my 8n generator was a b-circuit. Remanufactured Generator. cleaned all terminals and battery posts. Aug 28, 2023. Attach the other battery jumper lead to Zoom in on Image (s) Email a friend. Locate the Voltage Regulator. 245. The generator is not correctly positioned on the adjustable bracket. Your Price: $25. For tractor model 8N To S#263843. sedalia, CO. Remanufactured, Round, 3 wire, keyed shaft. If the charging system is working the trator will stay running, if it isn't the tractor will stop when you dixconnect the cable. Re: Bench Test A Generator in reply to davr101, 08-26-2007 14:47:38. New, aftermarket Ford 8N Generator Repair Kit for sale with a solid manufacturer warranty. that is the wire that must be cut and the Ammeter hooks in line to it. 5 amperes. Re: How do I test my 6 volt generator? First, momentarily attach a jumper wire from the BAT terminal of the regulator to the ARM terminal, for no more than a second or two. Ford - Fits: [ 2N, 9N (1939-50) ], 8N with front mount distributor: 8N (up to SN: 263843 (1947-50)) If you have a Ford 8N with a side mount distributor (generator / alternator is on the left hand side of tractor), please use FDS1099. Ford 8N Generator, 6 Volt for sale, 8N10000BR. Jan 28, 2009 · Polarizing a generator is a simple procedure that can be quite frustrating. See www. jump battery + to field and armature. Dave R, This should help you. SHOP NOW. Part Number:9N10151c. It is an 8N-10000 unit. Take a piece of scrap wire and flash across the armature or gen. Dec 29, 2010 · #1. In Reply to: 8N generator test posted by Bob Roelf on September 06, 2001 at 13:51:30: Measure the voltage at the generator output with the tractor not running. Voltage drop test = . you have a cable that runs from the battery neg. Tractor off, belt off, arm to bat, should spin a little if bearing I good, should spin string with field grounded. Been reading the 8N generator thread with interest, but it hasn"t touched on a problem I have. Replaces Ford OEM nos 8N10001, Replaces Mfg nos 5798, 350-42, 92-02-5011. 3-wire starter motor w/ a relay (solenoid) 30a ammeter 8n 12v setup uses: both the gen and vr are removed from the circuit 1 or 3 wire alternator; delco 10si model is typical can replace ammeter with a voltmeter but i advise to leave ammeter in place. 8 to 12V but it will be very dim. Rod. Installing a regulator is easy - but wrong installation can ruin a new regulator in a few seconds. The best selection, low prices, fast shipping, and great customer service. Yer dashboard AMP meter will provide more information than volt meter. If yours is adjustable, there will be a slotted screw head on the end on the generator by the armature post the will say higher and lower next to it. Measure the voltage at the battery with the tractor not running should be between 6. Cleaned all connections. In this tutorial the Moss Motors Tech gurus show you how to polarize a generator Nov 17, 2007 · Last Subscription Date. So, after buying a new b-circuit voltage regulator (for an NAA) and polarizing correctly for b-circuit, everything comes right up. Just to tell if it"s working or not ? 1948 8n . . Just remember A to B . If it is not connected with the polarity right it will not read. 63. I think your regulator is made for the later model (2-Brush) generator that does have a field Actually EARLY 8N models did have an adjustable generator similar to the older 9N models - but that is another discussion. Order Ford 8N Parts Online: Discussion Forums > Tractors > Re: 8N generator test. #1. Generator should spin. Reference ID: GRK401. In this tutorial the Moss Motors Tech gurus show you how to polarize a generator Nov 13, 2007 · ZANE. [Log in to Reply] [No Email] Re: polarize 8n generator, ground field terminal? in reply to greg m, 10-10-2001 09:46:21. Does anybody know a simple way to test a generator while on the tractor. Mar 21, 2022 · To test your tractor’s voltage regulator, you must ensure your tractor is turned off. J. Your regulator is what determines when the generator charges and if it's bad the GEN light will come on as well. 8N10001) $339. Oct 25, 2023 · A short video demonstrating on how to polarize a Ford positive ground generator. 6 volts. Engine (19) 8N - Oil Pump - How to Service. Armature terminal is always on the rear back panel and GRN is the 3rd terminal on barrel. What test can I run with a voltmeter to find out for sure that it isn't charging Tractor. I"m replacing the 3 brush/3-terminal externally grounded unit that is already on it. com and received a single terminal version that I assume is Shop for the 2N 8N 9N Ford Tractor Generator 420-14000 5792 at DB Electrical. Item 203501 Greetings, I recently purchased a used generator for my '48 8N (front mount distributor). ntractorclub. Motor Generator: Pull the belt off. 8n oem 6v system: Locate the voltage regulator. Jul 7, 2019 · In this video, I lubricate, inspect, & service my FORD tractor. Mar 28, 2019 · I have had the generator tested, it is good, new wiring harness, new ammeter, three new voltage regulators, still the same problem. Item 203503 Nov 17, 2007 · Last Subscription Date. At about 1/3-throttle, yer genny will MAX volts at about 7. Unlike the three-brush system, the two-brush generator could achieve its true maximum output when the field was grounded. Product Number: FDS6043. 00 core charge will be added to your order. Positive circuit test= 159. 52’ 8N. 99. Nov 3, 2015 · Kbeitz. Follow me on instagram -- mrpete222I now offer tubalcain T SHIRTS in my store - click below. Replaced (positive ground). This meant that external controls would be required to keep it from burning itself out. Test results: Battery volt = 6. It runs fine. to test a B circuit genny. see if you can make the lamp light up. The starter wiring diagram illustrates the correct connections between the different components of the starter circuit. This "polarizes" the generator, establishing "residual magnetism" in it. Jumper ARM to Negative battery post. Re: Testing a generator with a voltmeter in reply to John Skolits, 11-02-2007 13:57:55. Thought the charging system wasn't working on the old girl, but after testing it appears to be working normally. What I found out was, the ol boy that had the tractor before me had replaced the generator sometime before and when he did, he put the pulley on backwards. As fer on the tractor testing, UNLIKE the 12-volt alternator on yer BelchFire-V8, yer 6-volt genny does NOT charge at idle. Remove all three wires from the generator. It was originally set for a 6v system. Hook up a volt meter to the battery post and the disconnected battery cable. It shows how the battery, starter solenoid, ignition switch, and starter motor are interconnected. I don't know if it was rebuilt wrong or replaced at some time in the past. Aug 16, 2022 · The OEM 6V/POS GRN system for a front mount 8N uses: 3-Wire/3-Brush 11 AMP, 'A' Circuit GENERATOR on early 8N's, a 3-Wire/2 Brush, 20 AMP unit on late 8N's, with a belt tensioner; Voltage Regulator; 3-Wire Starter Motor with a Solenoid; Ballast Resistor; Ammeter; 6V coil; IGN Key Switch; safety starter pushbutton; and all correctly wired. He's thinking about the older 8n vreg /genny that is A circuit. [Log in to Reply] [No Email] Dell (WA) 04-15-2002 09:10:08. The regulator is fairly new looking. WARNING: Cancer and Reproductive harm. 33v after battery manually charged whether engine running or not. Jun 27, 2023 · The 8N-10000-B VR is the one used on early 8N's, s/n prior to 263844 with front mount distributor. It outlines the specific placement of components, such as the battery, starter, ignition switch, and alternator, as well as the necessary wiring connections. Ford - Fits: 8N (Late with generator mounted on the left side of the tractor only); Replaces: 8N6129 Fits late 8N Ford with the generator mounted on the left hand side of the tractor. Attach it in a vise for a good case frame ground and attach one battery jumper lead to the vise/genny for a good ground. Nov 17, 2007. installed battery. P65Warnings. 11 and FIG. I'm pretty sure resistor is factory if I have one. You must attach the multimeter’s clamps to your vehicle’s battery, set it to voltage, and look out for the readings. Seems almost all of them out there have mounting brackets on the end castings. Jun 2, 2011 · motor test the genny yourself, again. Found some posts online, the most helpful is linked below, that ment Re: Test of PTO generator on 8N in reply to Jim Cox, 09-11-2004 18:55:01 Well, 749 watts of electrical power equates to 1 HP (find a conversion chart). soundguy. Ford Tractor 8N, 2N and 9N Generator Support Bracket. The things are installed in a very hard to get to place. This Ford 8N also has a tachometer and a side mounted distributor. You are directing the current to the proper polarity. In my humble opinion Ford 8N Generator, 6 Volt for sale, 8N10001. Quickview. All connections look good. The early 9N small barrel 7-AMP, 2-Wire/2-Brush, unit used the B Circuit Design. To receive this product outside the continental U. Price: $39. Step 5. Normally, the generator is polarized on the tractor and the field is grounded through the voltage regulator so grounding the field would be redundant. Dan, there are at least 4 generators made for the N-series tractors. Report to Moderator. Amp meter shows zero discharge standing. Prepare Your Multimeter. The reading is higher, as generators produce slightly more electricity than labeled to allow for resistance in the cables. I put my volt meter across the ARM and grd (either the GRD lug on generator or chassis bolt), I expect to get at the very least 6 Volts but actually measure 0 volts. The Ford 8n 12-volt conversion diagram is a visual representation of the wiring and electrical connections required to convert your tractor’s electrical system from 6 volts to 12 volts. I increased the spring tension on the regulating contacts to get it to regulate at about 8. Start the tractor and watch the meter. Jun 9, 2009 · (quoted from post at 00:08:13 06/10/09) I just re-wired my 1952 8N to repair the previous wiring hack job (originally by a previous owner, and re-patched together by me). 90. [Log in to Reply] [No Email] 36 coupe. Condition: New. Battery went dead. 5 on down and it will be fairly bright. , you must call 877-530-4430 to make arrangements. Note the reading. thus wearing out the ears/bolt/holes needlessly. If you don't, the battery will most likely not charge. Take a moment to identify the regulator’s location before proceeding. Rated at about 40 horsepower, the engine had a little more oomph than the 8N's original 24hp flathead four-cylinder, but it also spun a great deal faster: about 56,000 rpm, reduced via gears to 8,000 rpm at the power takeoff in generator configuration. The 9N-A was the first early 1939 small 7 AMP, 2-Wire/2-Brush, "B" CKT GEN that used the Voltage Regulator. Nov 28, 2023 · Understanding the Role of a Voltage Regulator in a Generator. at 11. If you are uncertain of the regulator connections, since this is a (+) ground system, take a length of wire, and jumper the (-) battery terminal to the large ARM stud on the generator. With all the wires removed from the generator, there should be at least 1/2 volt present at the ARM Nov 6, 2008 · 1948 8n (800) 853-2651. David, I just replaced my generator on my 51 8N. Mar 27, 2008 · the old timer gave you a good way to cook a 40$ regulator. The reverse is motor test. There is NO Field terminal on the Low-High (3-Brush) generator. Throttle up has no positive effect on amp meter. Jumper FLD to ground. It is not uncommon to see parts modified to work, people used what was available. As you rev up the engine the voltage should go from 0 to 6V and increase to 7+. * For front mount distributor only* distributor mounts directly… Credit card generators are programs or online services that generate valid credit card numbers. If it has bushings then at sometime in it's life it will need some oil. Sep 29, 2023 · 3-wire/3-brush (early) 11. Dec 24, 2005 · Tractor. Got a 1948 8N pre-263844. But Just a few notations, the generator bracket is attached to the U-bracket correctly but the generator appears to be an incorrect rebuilt replacement. If it reads between 7 and 8 volts, it's working correctly. These numbers usually follow a specific pattern known as the Luhn Algorithm, which verifies the validity of a credit card number. Compare Readings. Pulley NOT included 4 3\4 inch outside diameter housing, 2 brush, 3 terminal, keyed shaft. 3-volts. Regardless if an early or late unit, the FIELD terminal is always insulated from the unit barrel. charged battery up last night on charger. New generator (old one confirmed bad), new regulator (polarized). High rom and full field and you can make 20-25a, shirt term before solder slings. Looks like a tension bracket was rigged to the head to keep the belt tight(?) Click on the lik below, then click on the "Restoring" link and you will see what it should look like. May 5, 2023 · ALL 8N's and 9N & 2Ns except for the first early 9N GEN, use an A Circuit GEN. Yep Willy that is the 1950-1/2 thru 1952 8N set up. Beginning with the NAA in 52, all FORD Tractors used the B Circuit again. Looks like someone put a 1953 8N generator on your front mount distributor tractor. Like. Charge rate will be based on rpm. #3 · Nov 4, 2015. Found out the sequence of hookup for the Ammeter. Here the Moss Motors Tech specialist walk you through checking your genera Jan 23, 2015 · Most brushes need HIGH-HEAT to be SOLDERED in. 04-22-2006 22:31:15. Ford 8N 9N 2N Generator Support Bracket. You will have to find a location for the voltage regulator and a mount for it. You GEN light will begin to light up at about 11. 4 (off the charts!) should be . Refundable $50. IF you don't see an increase in battery voltage when the tractor is running, you have a charging problem. com. An alternator is a lot shorter and fatter then the generator is and looks nothing like the starter. gov. May 18, 2012 · With the engine off, use a flat-blade screwdriver to momentarily touch the BAT and ARM terminals on the voltage regulator. B. I dis-assembled the generator and found it to be in really nice condition on the inside (most generators I've pulled apart had 50 years of rigging, dirt, & wear on the inside). The voltage regulator on the Ford 8n tractor is typically located on the generator or firewall. S. Do not remove the old regulator until you make these tests. 11-14-2007 19:07:59. 8N-10505-A VOLTAGE REGULATOR, p/n VRR-4008: AFTERMARKET AUTO-LITE VRR REPOP, GUARANTEED PRODUCTS ON LEFT, OEM ON RIGHT: Tim Daley (MI) Feb 4, 2011 · '49 8N with electronic ignition. Next, find the voltmeter’s red lead and touch it to the positive terminal. Best internet source of information and help for old Ford tractors. I had one on my 48 8N, but it was the older 9N version. Aug 28, 2023 · Well-known Member. The reading should be around 12 volts, which you Jan 18, 2022 · A method to quickly and easily test your old Delco generator charging system. ca. terminal to the battery terminal. Feb 14, 2024 · You've done a lot of good homework. To get that power to the rear wheels, he first considered simply keeping the APU's generator Dec 9, 2013 · Location. This will enable some power to flow through the generator so that you can test it. Perhaps the battery is just past its life. If the reading is between 6 and 7 volts, you should get Ford - Fits: 8N (Late with generator mounted on the left side of the tractor only); Replaces: 8N6129 Fits late 8N Ford with the generator mounted on the left hand side of the tractor. It would be best to have a multimeter to read the voltage running through your battery. If you motor the generator, the generator would self polarize. 11-03-2007 03:04:41. The 8N unit had 3 Terminal posts - FLD GRN and the rear had the ARM connection. Physically, it looks like the right generator, but I can't find any part number on it. Item #: 182496. 54. 5 amp, generator & a 3-terminal voltage regulator. for sale. It used the 9N-10130-B pulley and now with a larger barrel, used a new, larger armature, and the output increased to 11. 9N - Overhauling the Engine: Part 1 - Engine Removal, Disassembly, and Evaluation, by John Korschot. Replaces OEM number 8N10000B. Only the early ones had the Low- High screw on them. 6v front mount. Pulley NOT included. Capacity test ( crank eng 15 sec) = 5. May 18, 2021 · Performance test details Mechanical: Two-wheel drive: 8N Serial Numbers: 1947: 1 1948: 37908 1949: 141370 generator Charging amps: 20 Battery volts: 6 Re: generator tension in reply to 1chano, 02-08-2006 23:10:14 Well, for MY money, I would tighten the bottom bolt enough so that it doesn't vibrate and wiggle. If they rust real bad the brushes can't put pressure on the commutator. 12. Jun 21, 2010 · I'm trying to resurect the generator on my 8N that i suspect has not been working for years. HTH, 8N w/Side Mount Distributor (6 Volt) Jim Lawrence Helena, Montana. All new, used and rebuilt parts have a 1-year warranty. back 47-52. Jun 15, 2017 / 1951 8n charging question #8. the reg provides POWER to the field post on the genny. Read ALL instructions before proceeding. You do not have a 9N-10000-A Generator though. 8 volts. Mar 4, 2015 · This is a follow up to my video, Troubleshooting a Problem in a 6 Volt Charging System on a Ford 2000 Tractor. Slight discharge with key on, even greater with headlights on. They wont last long unless you drill an oil hole and add oil. . Motor Testing a Generator. Tractor. I am assuming you have the side mounted distributer and your generator mounts on the left side of the tractor. I Jul 15, 2022 · Jul 15, 2022. Most Ford 8n voltage regulators have four terminals labeled ‘BAT’, ‘FLD’, ‘GEN’, and ‘ARM’. Re: How to tell if generator is bad in reply to Jon in Mass, 04-15-2002 08:22:51. A '51 8N would use the side mount distributor on the RH side and the 20A GEN now moved to the LH side. then disconnect all wires from the genny and slip belt back on. 6v generator is the same with exception of bearing mentioned. http://y Re: 1948 8N generator charging question in reply to Dan, 02-29-2004 17:19:53 There is one test you could do on the regulator if you can manage to get to it. Step-by-Step Process: How to Test a Generator Voltage Regulator. #2. Aug 6, 2018 · Place the key back in the ignition of the tractor and turn on the headlights. 5 or less not sure what all to check and clean to Jon, If it won't motor, open the end an see if the brush holders are rusted. I am trying to help a friend with an 8N. I followed the steps in the manual (jumping various terminals at the regulator, etc. Bob Oct 23, 2007 · You CAN test the voltage, and you should have right at 12. Replaces, 8N10001 8N10001LPR (Item #: 203503, Ref. Also included is wrapping field coils a Mar 12, 2023 · Understanding the wiring of your 8N Ford tractor is paramount for the longevity of your machinery. Connect the Multimeter. 9N - Overhauling the Engine: Part 2 - Block Assembly, by John Korschot. Feb 19, 2015 · I recently discovered my positive ground 6 volt charging system on my 1963 Ford 2000 tractor wasn't working properly, so I filmed my troubleshooting steps. Free Same Day Shipping over $50* USA/48 only. to a post on the starter solenoid. Availability:In Stock. I took the generator apart and thouroughly cleaned the terminal contacts (the Armature was an infinite resistance at minimum). He said about 1958 year model. Additionally, these tools may generate additional information such as expiration dates, Card Verification Value (CVV Sep 16, 2018 · Had problems with the old 8N not charging, even with a new and store tested alternator. No, it's not charging. The replacement generator has an adjusting screw on the back marked "low" and "high". 90 Sep 10, 2019 · The Ford 8N's alternator and water pump are installed and working! In this video, we start it up and check some temps, verifying that the cooling and chargin Mar 22, 2011 · Generator isn't charging my trusty late 1952 8N. Tractor running, battery not charging. The manual says check connections, which are all solid. Ford 8N. start tractor and jumper arm to field, and arm to a 12v lamp,other side of lamp to ground. Generator is only 7 years old and doesn't get a lot of work, so why? New wiring harness, ammeter and regulator about 3 years ago too. Mar 30, 2013 · Mar 30, 2013. Make sure the adjusting screw on the back of the generator is pointing to Low. A mechanic that works on old tractors says it is most definitely the voltage regulator, but I cannot imagine that I have three bad ones, he says inferior 04-22-2007 12:50:45. Identify the terminals. #3 · Jul 30, 2008. *NOTE* Regulator should be disconnected from Generator during the motoring test. With the volt meter giving a reading it means The two-brush generator was applied to tractors in the late fifties to overcome these deficiencies. It has an 8 volt battery, positive ground. Subtract about 25% for losses in the system and you get about 550. Hook it so the needle reads. bd. Do it wring and you fry the VR. The 8N-10505-C VR is the one after s/n 263844 for side mount distributors and with the larger 20-AMP GENERATOR. Re: Checking 6 Volt generator output in reply to Tom N MS, 11-13-2007 20:49:40. Jul 29, 2008 · 6789 posts · Joined 2005. May 29, 2022. Autolite plugs. 11/27/2008. Should be zero. 00. With engine started and around 1200rpm. 5+ V when it's running. May 29, 2022 · Member. 15218 posts · Joined 2005. Re: 8N generator test [Show Entire Topic] Welcome Guest, Log in or Register: Author : . 8 to 13. How can I connect digital volt/ohm meter to test generator & voltage regulator charging system? I have 1952 8N #8N496711 with 6 volt positive ground system. Replaces, 8N10001 8N10001LPR for sale. Sep 28, 2014 · Connect the volt meter from the generator terminal to a good ground. all fords 53+ and your 3000 uses a B circuit system. Re: 8n generator in reply to Rob , 04-24-2003 11:58:18 The large stud on the rear plate is the armature, that is where the voltage 'comes out'. If not zero your cutout isn't. There will be an additional core charge of $50 added to your order - this is refundable if you send your core to us. A wire runs from that to the lower stud on the resistor terminal block. Apr 23, 2013 · A generator puts out DC voltage from the get go and looks a lot like your starter but is belt drive. Use Caution when Polarizing with your VR. This guide will explain how to wire a 6 volt 8N Ford tractor, including what components are necessary and how to connect them correctly. In addition, we have a generous 30-day return policy if this item needs to be returned for any reason. Aug 25, 2014 · Volt meter on battery reads the same 6. slip belt off. The back panel also had the 3rd Brush Adjustment screw. lhzxsfgjdqemivvbhcab
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