1950 8N question

Water Pig

Member
OK, everyone. this is my first post after lingering around for a while. first, I have a 1950 8N, side distributor. question about point gap. I gapped the points at .025 like the manual said. didn't fire. set them at .015 like the old timer at the parts house said it fired. I have been having problems that I believe are fuel related and am working on fixing that as I can. but the point gap has me confused. would anyone like to share with me. the engine was rebuild by my Dad and finished just before he passed. Thanks in advance for any knowledge you are willing to share. You folks are full of great ideas and I know you get tired of newbies but oh well here I be.
thanks
 
Its not rocket science I have set them using a paper matchbook cover in a pinch. As long as you get good fire let it run. If it were going to be turning 6 or 8 thousand rpm then I would get it on the money but like I tell myself several times a week "it s only a tractor"
 

[b:92cb09e18c]"You folks are full of great ideas and I know you get tired of newbies but oh well here I be."[/b:92cb09e18c]

some of us are full of other things too :oops:

we were all n00bs once. welcome aboard, eric :)
 
Thanks Guys,
the fuel issue is kicking my butt. I just wish I had been around Dad a lot more working on this machine.
Every time I get on this tractor I think about him. he rebuilt it and I painted it. Not the best paint job, but it isn't rusty anymore. I will get the fuel issue worked out. My buddy is a master mechanic and has worked on tractors since he was a kid so I have a local resource. I notice there aren't a lot of side dist. posts or maybe I just have missed them. anyway thanks.
 
Changing the point gap from .025 to .015 and having it start was a coincidence.

If you continue to run it with the gap at .015 you will burn the points out pretty soon.

The gap on the 1950 front distributor was .015; you have a side distributor & the gap needs to be .025.

Post back & describe the symptoms of your fuel problem.
75 Tips
 
(quoted from post at 23:02:36 02/06/17) Changing the point gap from .025 to .015 and having it start was a coincidence.

The gap on the 1950 front distributor was .015; you have a side distributor & the gap needs to be .025.

75 Tips

Listen to Bruce.

The fact that it fires @ .015 and doesn't @ .025 probably means that the points are not closing good enough to provide a path to ground (no continuity). Find out why and correct this problem.
 
Since the engine was just rebuilt, the distributor was probably removed. You might reinstall it according to the FO-4 service manual. gap on side mount is 0.025 like others have said.
newbies is what keeps this site going.
I have a 50 side mount that i am getting ready to convert teo 12 volts. All I need is some warmer dryer weather so that I feel like working on it.
good luck and welcome aboard.
 
If they were old points take a little sandpaper open the points let the points close on the sandpaper and slide it back and forth 5 or 6 times to clean the points. Blow out the dust reset them and see what you get. As points wear they get pits and residue on them and what you think is.025 might be a lot more.
 
Unless you are a glutton for punishment, do not take the distributor out and re-install it!
 
Thank You for all of the replies. the points were new, I will clean them (sandpaper) and reset. the tractor was running great last year, died while working. so I towed it so I could work on it and
started painting it. Months pass, and it looks prettier. I replaced the Carb as it was very rusted inside and out. so I finally got it started. It has been converted to 12 volt. I finally got it working
again. it was not running correctly. it would hesitate when plowing (its like it just stopped and before it died it would rev back up. I pulled the distributor and cleaned up the weights, and got it going
again. the timing mark is a small mark in the middle of the flywheel and is in the middle of a line that starts above the mark and goes below the mark. the line starts at the front of the flywheel and
proceeds diagonally to the rear with the timing mark in the middle. (unless I have missed another mark somewhere) So I set it to tdc on first cylinder, set the gap. and it started. I then drive it around
and plow with it and I had to stop for a moment and it would not start. I have spark. 1/4" gap on sparkplug visualized. I have power visualized by volt meter. When I tried to start it it fired up and
died. so like any normal new guy I choked it a little and no luck. (I also put new plugs in prior to this. just so you are aware, if you attempt to blow the fuel line from the carb back to the fuel tank
through the "old" now replaced sediment bowl it can blow off the sediment bowl bail. Yes the fuel was turned on when I did it. Lesson learned there. so now fuel is coming out of the carb where the air
intake is not a lot just enough to cover the very bottom of the inlet. My plan is the pull the distributor, regap the points, set the timing again, and try once more. I have the manual, and I do use it.
the timing mark confused me as it was not described very well. As Dad rebuilt the engine it is possible that the flywheel was replaced for some reason. I will look through the paperwork he left me and see.
Sorry for the long post. if I left out any important info please let me know.
 
Agreed!!!!! You can pull the plugs clean them and turn the engine over with your hand then to get the dist lobe right where you want it to set the points then.
 
(quoted from post at 12:42:43 02/07/17) Unless you are a glutton for punishment, do not take the distributor out and re-install it!

He said his dad rebuild the engine, he never said whether it ran or not. If he installed it, he may have got it installed wrong.
just saying.
 
Eric, I too had a side mount that was kicking my butt. It would run pretty well, then sputter almost die, then come back. I was sure it was fuel, carb came apart, I measured the flow in 2 minutes, adjusted the float. The point gap had been a little off, so I reset it. Still a problem. It couldn't be the points, they were almost new! Finally it was getting sort of dark and I have a cracked distributor housing, so there is a little hole between the cap and the housing, I noticed when the motor was running poorly I saw fireworks in the hole. When it was running well, no fireworks. I put a new set of Trac Sup points in. They were a real problem as the point arm touched off on the screw that holds the points in place. I threw those away and went to NAPA, they had 2 in the book, one good, one better .. I bought both. I put the good ones in (more $$), bingo! No more trouble. I think the points were worn so they would just barely close.
 
(quoted from post at 13:17:57 02/07/17)
(quoted from post at 12:42:43 02/07/17) Unless you are a glutton for punishment, do not take the distributor out and re-install it!

He said his dad rebuild the engine, he never said whether it ran or not. If he installed it, he may have got it installed wrong.
just saying.

OK I see that it was running great, don't pull the distributor!!!!
 

Don't pull the dizzy. Clean points, then address why you have gas in the air intake side of the carb, also check your gov and connection to gov/throttle.
 
" I will clean them (sandpaper) and reset"

Not a good idea.

You were advised to use sandpaper if they were OLD. That's because if you use sandpaper or a file on new points, they will then be old because you will have removed the thin metallic coating.

Just reset the gap.

" My plan is the pull the distributor"

Again, not a good idea. Listen to JMOR and leave the distributor alone. You do not need to remove it to set the timing or the points.

" As Dad rebuilt the engine it is possible that the flywheel was replaced for some reason"

That's highly unlikely. There is nothing to break on a flywheel. They get resurfaced & have ring gears replaced.

" so now fuel is coming out of the carb where the air intake is "

All the time or just when you try to start it?

Re timing, remove the #1 spark plug. (removing all of them makes the job a bit easier) Ignition off, place your thumb over the #1 spark plug hole and crank slowly until compression is felt. Continue to crank the engine until you see the timing mark, 0* (top dead center) on the flywheel through the timing hole in the right side of the bell housing. Use chalk on the flywheel to exactly align the 4 degree mark with the pointer. Loosen the distributor hold down bolt. Turn the distributor housing counter clockwise until the points are closed. Put the cap on & double check the plug wires, 1-2-4-3, CCW. Then, remove the primary wire from the side of the distributor (or at the coil, whichever is easier) Put one lead of your VOM (set on resistance) on the stud on the side of the distributor & the other on the block or other good ground. Slowly turn the distributor. The needle will move as the points close & then open. Find the exact spot just as the points open & then tighten down the distributor.

Now check your work (and the dynamic timing) w/ a light.

If it won't idle below 500 rpm (400 is better) don't bother w/ a light.

If it idles ok, make 3 marks w/ chalk or white paint on the flywheel:

4*
10*
17*

Start the engine.

At idle, the light should flash & the marker should line up exactly at 4* if you did the static timing correctly.

If not, loosen the distributor & turn it until the marks line up. It should take very little adjustment.

Once you've got that done, increase the engine speed to 1200 rpms. The light should flash & the marker should line up w/ the 10* mark. Then, increase the rpms to 2000 & look for the marker to align w/ the 17* mark.

Close counts on the advanced timing. A degree or 2 either way is ok. But, no movement or 5* or more off means you have an advance weight problem. You don't adjust the distributor to fix that.
75 Tips
 

The flywheel should have two sets of timing marks, 180 degrees apart. Use the ones that appear when number 1 cylinder is on compression stroke. Use the 4 degree mark on the flywheel as stated in the manual. AI don't like to sand new points, maybe clean them with brown paper clamped between them. i will sand old ones to get working until I can buy new points.
 
timing I think. I replaced the points/condenser and set the timing. I did not remove the distributor. and it now runs. If I ever figure out how to post a picture I have proof of life.
a150951.jpg
 
timing I think. I replaced the points/condenser and set the timing. I did not remove the distributor. and it now runs. If I ever figure out how to post a picture I have proof of life.

A dwell meter / tach would have been helpful , then there is no need to guess if your points are set right . $20 to $40 on ebay . A poor dwell time will make it act up when the motor is under a load .

For those that do not have a proof meter you can use the tach to check your governor / idle settings . I gut my square coils and run a 3.25 ohm coil so hooking up a meter is easy , no so much on a stock front mount distributor though .

http://www.ebay.com/itm/Actron-Igni...OSwFV9X0JfZ&item=331963334829&vxp=mtr
 
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