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8N Won't Start
:

Trouble in Paradise Part 2

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Andy - Hammond,

03-14-2001 09:20:29




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Still no starting!

Ok, I replaced the plug wires since #2 was not even making contact with the plug and I know it was not working. I replaced them with Napa Premium Offroad custom cables - no spark at plugs - tested with screwdriver to block - nothing. I checked the fuel flow - perfect - carb drain valve and input fuel line are clear and flowing nicely. This goes back to an electrical problem. I checked the little wire going to the top of my front mount distributor - 12V converted system when I bought this 1949-1950 8N 2 days ago
The system used to start up IMMEDIATELY via the starter button and ran good. The starter is working - the battery is good - the fan belt has been replaced brand new. The distributor, cap, everything was overhauled and is brand new. But no resistor?

It stalled last night after some surging and now it won't restart. Funny thing is that I traced the resistor wire from behind the dash to the top of distributor - I dont see any resistor anywhere
I took a pic here --- my finger is on the wire going to the distributor. It is just wired onto the wiring block with the other wires. Could I have blown a coil in the distributor or something?
Any ideas?

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third party image

How do I get to the front mount distributor? Do I have to remove the hood and grill? Explain.

Thanks!!!!! ! Hurry - I need to get it out of the rain! (grin)
Andy

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Max

03-14-2001 20:19:10




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 Re: 8N Won't Start - Trouble in Paradise Part 2 in reply to Andy - Hammond, LA, 03-14-2001 09:20:29  
This may sound stupid but did you check to see if the rotor was turning? A couple of weeks ago my trusty 48 8N and I were disking the side yard and it surged a couple of times and stopped. I checked the voltage on the distributor after not seeing any spark at the plugs. Gave the trusty beast a fresh tune-up and still no spark. Soon discovered that the silent cam gear made the engine go silent. It was missing about fifteen teeth and now my trusty ol 48 8N sets in the garage for a nice restoring job with the engine in process of being freshened up. Good luck.

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pat

03-14-2001 14:39:06




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 Re: 8N Won't Start - Trouble in Paradise Part 2 in reply to Andy - Hammond, LA, 03-14-2001 09:20:29  
I know there is every type of advice coming out here and you will find like they all say,, eventually you learn the little quirks that get thrown into the fun of owning an older dependable tractor,, I might have missed it in all the posts that where written back but,,,, hows the condensor,, i know for a while mine would go and we would put in a new one and it was good after that,, also the wire that goes into the top of the dist???? is that new or old could be cracked????? sorry for the extra,,, but check what all the others are asking for,, and give the stats they need and they will figure it out for ya. good luck get dirty and have fun

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Charlie in TX

03-14-2001 11:32:50




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 Re: 8N Won't Start - Trouble in Paradise Part 2 in reply to Andy - Hammond, LA, 03-14-2001 09:20:29  
Now hold on there young fella. Take a few deep breaths or your tractor will notice your excited.;-)

You have to stop and read the posts. Dell told ya what we need to know to aim you in the right direction.

WHAT IS THE VOLTAGE AT THE COIL WITH THE POINTS OPEN AND CLOSED?

By the way, these coils do need a balast resistor to not burnup.



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Andy - OK Results -

03-14-2001 12:16:58




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 Re: Re: 8N Won't Start - Trouble in Paradise Part 2 in reply to Charlie in TX, 03-14-2001 11:32:50  
Ok - I am only getting 10V across the battery posts at rest. With the key turned, I am getting the same at the distributor coil wire when checking across it to ground. Maybe the alternator was never working and now the battery is too weak? Can I jumpstart the tractor with my truck?

I know it won't help in the long run since the battery is not charging but it may get it out of the rain. Hmmm.

Andy

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Charlie in TX

03-15-2001 06:14:00




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 Re: Re: Re: 8N Won't Start - Trouble in Paradise Part 2 in reply to Andy - OK Results -, 03-14-2001 12:16:58  
OK, the first thing I would do is go buy a new coil and 2 balast resistors. This will limit the current to the coil and stop it from burning up. While your getting parts pick up new points and condencer. Get all this stuff in and you should then have sparkies and the old girl will run again.

After you fix the spark problem, get back to the board for help with the charging circuit. The tractor will run without the charging circuit working so it should be your first priority. The link has info on a proper 12v convertion. Compair it to yours and you may find your problem.

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Sounds like another botched 12V conversion!

03-14-2001 13:40:56




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 Re: Re: Re: 8N Won't Start - Trouble in Paradise Part 2 in reply to Andy - OK Results -, 03-14-2001 12:16:58  
Happened to me also - that 's why I know. Alternator was not hooked up right so there was not excitation of the field, ergo NO output!!

Since you are a young 'un, as one of the OLD f'ts on the board I should give you one other bit of advice, learned in the school of hard knocks.

OLD tractors are a lot like wimmen. You don't have one, you see one that looks GOOD, you marry/buy her/it and think you are in paradise!! THEN they show you who is BOSS!!! :-)

NOW, when you learn ALL their little idiosyncrasies so you STOP doing the wrong things they start right up and purr like you thought they shoud at the begining. The crutial thing is NOT to loose it and do something very stupid as you are in this learning phase. That could lead to very BAD things like divorce/buying a K'buta!!!

So look on your current trials as the 8N's way of being sure you know how to treat/fix/start/and other wise take GOOD care of it. :-)

WE're "here for 'ya" so hang in there. [BIG GRIN]

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TimK

03-14-2001 14:01:34




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 Re: Re: Re: Re: 8N Won't Start - Trouble in Paradise Part 2 in reply to Sounds like another botched 12V conversion!, 03-14-2001 13:40:56  
While I note the colorful analogies, I agee that these old tractors will throw all kinds of curve balls at you until you work thru all of them, and then like magic, everything runs well, and continues to do so. And you start looking in the right places the next time it tries to throw a curve ball. And then, whalah, you start answer others' questions on this Board ! My $.02



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Andy - Hammond, LA

03-14-2001 10:12:49




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 Re: 8N Won't Start - Trouble in Paradise Part 2 in reply to Andy - Hammond, LA, 03-14-2001 09:20:29  
Ok - I removed the distributor cap and took some pics - I noticed that when I moved the hinge forward and lifted the cap off of the distributor
- it was sparking! plenty of sparks! like grounding to the chassis of the distributor or something - I checked the ignition key and it was in the on position. I turned it off. I cannot tell if the coil is damaged since I don't know what it supposed to look like nor how long it should be. I am guessing that since this is all brand new and it was starting and working for several days with no problems, that the replacement distributor is all 12V model. Anyone recognize this as an aftermarket - one piece is black and the other in front is tan colored.

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third party image

Ok, so what now? Check the pics and let me know why it still won't start - thanks!

Thanks!
Andy

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Danny in CO

03-14-2001 11:15:55




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 Re: Re: 8N Won't Start - Trouble in Paradise Part 2 in reply to Andy - Hammond, LA, 03-14-2001 10:12:49  
Andy,

I see your problem! The sparkplug wires are not connected to the distributor!

Just kidding!

I'll cover the basics and let the experts cover the hard parts.

The coil is the black thing in your picture above. To remove the coil, flip the bail out of the way and disconnect the wire on top. Coil will now come out. There should be a cork gasket between the coil and the distributor/cap.

The tan colored thing in your picture is your distributor cap. To remove it, flip the 2 clips and it will come out.

The distributor can now be removed by removing the 2 bolts. You can see one of them in your picture. It has the red head behind the fan belt. Before removing the distributor, notice where the rotor is facing. This will help when you replace. You can set the point gap with the distributor off the tractor. Check for broken wires, especially the thin metal strap that connects to the points. When reinstalling, point the rotor where is was when you took it off. It should slip all the way in. You may have to wiggle the rotor to get it all the way in.

Reinstall dist. cap and coil with gasket. Connect the wire to top of coil. Use a multimeter (volt/ohm meter) to check the voltage to the wire on top of the coil. With the switch on, it should be battery voltage with the point open. I'm not sure what the voltage should be with the points closed since you have converted to 12 volts. On my 6 volt front mount, I get about 3.5 volts with the point closed. Once you measure the voltage with points open and point closed, post back.

My $.02 worth,
Danny

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Dell (WA)

03-14-2001 10:12:33




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 Re: 8N Won't Start - Trouble in Paradise Part 2 in reply to Andy - Hammond, LA, 03-14-2001 09:20:29  
Andy..... ..Since your tractor is new to you, we don't have a history of previous maintenance.

For example, if'n new ignition points were installed, it is quite common for the points to slip. Check 'em.

What we need to know is what is the voltage at the coil terminal. Is it 12 volt battery voltage, some other value? What is it when the ignition points are closed? open?

Don't mucka round bumppen the starter. Put the tractor in gear and push on those great big levers called tires, only have to move the tractor a foot to open/close the ignition points.

Once you have determined what the voltage is at the frontmount ignition coil terminal is, we can help you more better. Otherwize, I flunked mindreading, just ask my ex-wife..... ...Dell

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Andy - Hammond, LA

03-14-2001 10:24:40




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 Re: Re: 8N Won't Start - Trouble in Paradise Part 2 in reply to Dell (WA), 03-14-2001 10:12:33  
How do check the points? I have the FOP4 manual - I am trying to get all of this! I have only had 1.5 days to learn all of this stuff!

I am going to check the V to the ignition coil and then look at these 'points' --- How do I tell if they are out of position or damaged? Maybe, I will just send some more pics! (grin)

Thanks -
Andy



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Steve W

03-14-2001 10:04:31




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 Re: 8N Won't Start - Trouble in Paradise Part 2 in reply to Andy - Hammond, LA, 03-14-2001 09:20:29  
What Andy said....but pop the cap off the distributor, note which way it is pointing, and remove the distributor. It is possible to damage like andy said, byt piutting it back in wrong and tigghtening it down. I'd pop of the ground cable so you don't accidently hit the stater while it's out. Other than that, it is so easy to remove.

Some guys hunt for a side mount, not realizing that removing the front one takes about one minute, then you can take it in and work on it on the kitchen table.....well if your wife isn't home

Take Care
Steve

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Camera?

03-14-2001 10:01:03




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 Re: 8N Won't Start - Trouble in Paradise Part 2 in reply to Andy - Hammond, LA, 03-14-2001 09:20:29  
What kind of camera are you using? Looks good!



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jim(MO

03-14-2001 09:33:01




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 Re: 8N Won't Start - Trouble in Paradise Part 2 in reply to Andy - Hammond, LA, 03-14-2001 09:20:29  
There should be a ballast resistor in there. Coil may be burned out. Check the archives for info on this, especially posts from Dell(WA) or Claus.

You do not have to remove the hood or radiator to remove the distrubutor. It's held on by two bolts. Be careful reinstalling it. Although the tang is offset and will only go on one way it is possible to think its on correctly and might break something tightning it down.. The coil can be removed without removing the whole unit.

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