I got to about 2:46 in the video and immediately said, fuel shut off valve at the sediment bowl. I've grown up running these old 9n tractors and have forgotten to turn that thing on and off more times than I can count...just did it today actually...lol. I haven't finished the series to see what it ended up being yet, but that sure was closed up tight in this video.
I clean the fuel system and the whole tank, got a new carburetor, adjusted points , then finally found that a spark plug wire was damaged from heat, so new wires and she runs grey
Boy it’s nice to see a young buck on a old Ford 8n! I noticed that it is 12 volt sometimes the voltage to your coil is to much and there should be a porcelain resistor behind the amp gauge! If it doesn’t have that resistor your spark plugs can foul . And if you change the points make sure to use a new condenser because they don’t last as long as one might think! And you might want to test your coil with a voltmeter if you have one because if it’s getting the wrong spark it can back fire . If it’s running but you don’t have power or it needs lots of choke even when it is hot you might be getting the wrong voltage to the coil and then to the spark plugs. Try some of those things see what happens but the more testing you do the more things you can rule out and sooner or later you’ll figure it out!
Mine just started doing the same thing. Thank you for the video and Keith thank you for the thoughts. I’m going to check the fuel lines, thanks to this video. I’ll also check the resistor I put in and the points and coil. I love my tractor and do a free pumpkin patch for 300-500 people. The kids will be very disappointed if there’s no tractor rides this year. :(
Take the drain plug off the bottom of the carburetor and replace with a radiator petcock. Use an older one made of brass. Add a fuel filter to the fuel line before the carburetor. 8N's will pop if too lean. Always shut the fuel off on shutdown, so it should be closed. Now open the carburetor drain, then open the fuel for flow. The floats in the carburetor will not shut off the flow. Now check the flow at the drain. If its good, no need to do anything before the carburetor.
Timing has jumped!! If you change points in those tractors you better be right on the money! My grandpa bought one new in 52 and 5 generations have driven it!! Rebuilt the motor one time in 1970!!
Just solved my 9N backfire issue by changing the coil. The front tab on the old coil wasn't contacting the tab on the top of the distributor cap. Or just barely making contact, when I took the coil off and tried to adjust the tab so that it made better contact-I broke it off. So be careful. I think I wrecked it. Dont think I can just buy that tab. But I had a spare coil, and after installing it carefully-the tractor started and no longer backfired like it was. Not saying this is your issue, but if you changed the points, and your front tab on the coil is not making good contact, it may be the issue.
Did you replace points and condenser and distributorcap? I wouldn't think timing would jump that much. Coil or resistor may be defective. Your advance weights on the distributor may be sticking.
We had 4 8n working for nearly 40 years and I cannot recall removing the fuel shutoff from the tank... It sure was a pain to explain to new operators how the fuel reserve worked though.
thanks for trying, not many young men out there running tractors older than they are! it sounds like timing, but I didn't hear you say when it was backfiring. hope you get it figured out. mine was running great, starting super, than one day decided not too. pulled the plugs and they had carboned up, changed them, adjusted the carb and now seems to be doing good again. hate working on the points cause it is so hard to get to them#@! I know that the later ones have the distruter on the side, much better. thanks again for your post!
I have a 3000 ford tractor that just quit because the gas cap wasn't venting . thought it was out of gas so put more in. It backfired through exhaust and has not started since
Ive got a 9N. dropped the plow the other day to hook up the disc and it wouldnt start...ended up it was a bad plate in the distributor. bought a new plate and dist. cap, put it back together and fired right up. Just be sure to put the distributor back on the way it came off or it will backfire.
I was looking at the site because I have a similar problem with my 641 Workmaster. However, when you started the video, you showed your bush hog. I have the identical one but no idea who made it. If you know, would let me know? Thanks.
I have a full carburetor rebuild kit being delivered tomorrow, so I’m going to soak the disassembled carb in cleaner then rebuild it and hope that solves the problem, It’s getting good fuel to the carburetor so I’m thinking something inside went bad.. I’ll update if the rebuild fixes it .. thanks for watching !
Hey I have the same problem. I worked it hard one day and the problem started. I did a carb rebuild, fuel tank clean out, fuel line clean out, changed to 12 V system, New plugs, new plug wires, new sedament bowl Assembly, still had the problem. Just pulled the distributor out. It has a huge amount of play in the shaft. A worn bushing might be my issue. Good luck!
I got to about 2:46 in the video and immediately said, fuel shut off valve at the sediment bowl. I've grown up running these old 9n tractors and have forgotten to turn that thing on and off more times than I can count...just did it today actually...lol. I haven't finished the series to see what it ended up being yet, but that sure was closed up tight in this video.
I clean the fuel system and the whole tank, got a new carburetor, adjusted points , then finally found that a spark plug wire was damaged from heat, so new wires and she runs grey
Boy it’s nice to see a young buck on a old Ford 8n! I noticed that it is 12 volt sometimes the voltage to your coil is to much and there should be a porcelain resistor behind the amp gauge! If it doesn’t have that resistor your spark plugs can foul . And if you change the points make sure to use a new condenser because they don’t last as long as one might think! And you might want to test your coil with a voltmeter if you have one because if it’s getting the wrong spark it can back fire .
If it’s running but you don’t have power or it needs lots of choke even when it is hot you might be getting the wrong voltage to the coil and then to the spark plugs.
Try some of those things see what happens but the more testing you do the more things you can rule out and sooner or later you’ll figure it out!
Thanks I’ll give this a try !!!!
Mine just started doing the same thing. Thank you for the video and Keith thank you for the thoughts. I’m going to check the fuel lines, thanks to this video. I’ll also check the resistor I put in and the points and coil. I love my tractor and do a free pumpkin patch for 300-500 people. The kids will be very disappointed if there’s no tractor rides this year. :(
Take the drain plug off the bottom of the carburetor and replace with a radiator petcock. Use an older one made of brass. Add a fuel filter to the fuel line before the carburetor. 8N's will pop if too lean. Always shut the fuel off on shutdown, so it should be closed. Now open the carburetor drain, then open the fuel for flow. The floats in the carburetor will not shut off the flow. Now check the flow at the drain. If its good, no need to do anything before the carburetor.
@@doctorfloc thanks
a weak capacitor coil often gives back fire especially when the motor is hot
Timing has jumped!! If you change points in those tractors you better be right on the money! My grandpa bought one new in 52 and 5 generations have driven it!! Rebuilt the motor one time in 1970!!
Just solved my 9N backfire issue by changing the coil. The front tab on the old coil wasn't contacting the tab on the top of the distributor cap. Or just barely making contact, when I took the coil off and tried to adjust the tab so that it made better contact-I broke it off. So be careful. I think I wrecked it. Dont think I can just buy that tab. But I had a spare coil, and after installing it carefully-the tractor started and no longer backfired like it was. Not saying this is your issue, but if you changed the points, and your front tab on the coil is not making good contact, it may be the issue.
Did you replace points and condenser and distributorcap? I wouldn't think timing would jump that much. Coil or resistor may be defective. Your advance weights on the distributor may be sticking.
It ended up just being some carb work and a faulting plug wire
We had 4 8n working for nearly 40 years and I cannot recall removing the fuel shutoff from the tank... It sure was a pain to explain to new operators how the fuel reserve worked though.
thanks for trying, not many young men out there running tractors older than they are! it sounds like timing, but I didn't hear you say when it was backfiring. hope you get it figured out. mine was running great, starting super, than one day decided not too. pulled the plugs and they had carboned up, changed them, adjusted the carb and now seems to be doing good again. hate working on the points cause it is so hard to get to them#@! I know that the later ones have the distruter on the side, much better. thanks again for your post!
Sounds like a valve adjustment or a timing issue check both your timing and valves
I have a 3000 ford tractor that just quit because the gas cap wasn't venting . thought it was out of gas so put more in. It backfired through exhaust and has not started since
Ive got a 9N. dropped the plow the other day to hook up the disc and it wouldnt start...ended up it was a bad plate in the distributor. bought a new plate and dist. cap, put it back together and fired right up. Just be sure to put the distributor back on the way it came off or it will backfire.
I will check the compression
And I also would check the timing
Don’t need the music. Couldn’t hear a word you said.
Sorry I have no clue what I’m doing making videos, next time no music
A leaking exhaust pipe joint will cause back firing : lean mixture !
@@ChrisJames-t2r thanks sir
I was looking at the site because I have a similar problem with my 641 Workmaster. However, when you started the video, you showed your bush hog. I have the identical one but no idea who made it. If you know, would let me know? Thanks.
I’m not sure either lol
I am gay and autistic and loved your music.........
I wasn't gay or autistic until I heard the music in your video.
Did I ever figure out the problem I have this same issue
I have a full carburetor rebuild kit being delivered tomorrow, so I’m going to soak the disassembled carb in cleaner then rebuild it and hope that solves the problem, It’s getting good fuel to the carburetor so I’m thinking something inside went bad.. I’ll update if the rebuild fixes it .. thanks for watching !
Hey I have the same problem. I worked it hard one day and the problem started. I did a carb rebuild, fuel tank clean out, fuel line clean out, changed to 12 V system, New plugs, new plug wires, new sedament bowl Assembly, still had the problem. Just pulled the distributor out. It has a huge amount of play in the shaft. A worn bushing might be my issue. Good luck!
@@lamarrmingle5976 thanks sir I will try that
Don't light a cigarette
Dang music was to loud.
I’m no good at the video making sorry
I don't know what was worse; the music or you dumping gallons of gas..
Did the backfiring issue get resolved?
I did , i believe it had something to do with carb adjustments, but also had a bad plug wire
Music socks stopped watching
He’s just cleaning the filter and bowl. This video is worth watching.
Sry I’m new to videos
Why the stupid music can’t hear you talking
I don’t know how to edit videos