TRACTOR PARTS Allis Chalmers Case & David Brown Farmall & International Ferguson Ford & New Holland John Deere Massey Ferguson Massey Harris Minneapolis Moline Oliver & Cockshutt Kubota / Yanmar

TRACTOR MANUALS

Allis Chalmers	Case	Farmall IH	Ford 8N,9N,2N	Ford
Ferguson	John Deere	Massey Ferguson	Minn. Moline	Oliver

Farmall & IHC Tractors Discussion Forum

Diagnosing my electronics baby steps.

Welcome Guest, Log in or Register

Author

Tanner Clark

12-20-2004 04:17:21

Report to Moderator

Ok this weekend was a little productive. Anyway, I was able to spend a couple of hours work on the tractor Saturday afternoon. I have that nice multi tester but the truth is, is that the little pigtail light is still way more important in figuring out where current is or is not going. Ok, I bought a new ignition switch and starter switch. I have good power through the 12 volt coil to the negative side, however once I connect the negative side to the Dist. there is no power on the negative side. I believe this is because the points are closed and until they are open no power will be going through the Dist. Is this correct? So now that I think I have worked out the electronics of this thing, I am feeling a little better, "baby steps". I went to use the hand crank to figure out TDC for the #1 piston and the little pin is missing on the outside of the cranking bar. So I had no way of really using the hand crank to get this in time with the dist, what type of pins have you guys put in there to replace the stock pin? Also, you are supposed to set the points to 0.020 when one of the rectangle shaft corners (not the flat side) is pushing the arm out, just at the point of where it should open and shut. I have done this, but I have noticed that only one corner of the shaft touches the arm, or in other words the points are only opening once per full revolution of the Dist. Shaft. I have a feeling this is incorrect and that the points should be opening 4 times per revolution. So once I figure this out I will proceed with TDC and the plugs.

[Log in to Reply] [No Email]

Gene

12-20-2004 11:26:34

Report to Moderator

Re: Diagnosing my electronics baby steps. in reply to Tanner Clark, 12-20-2004 04:17:21

Missing pin in hand crank. Measure the hole diameter. You may want to ream/drill out the hole to a standard size - clean up the hole. Take the crank into the hardware store. Find a grade 8 bolt that just barely fits the hole - perhaps even a little snug. Bolt needs to have two or three inches extending out each end of the crank. Tack weld the bolt to the crank handle. Cut off the bolt head. Try to insert the crank. This will tell you how much more of the pin you need to cut off to make it work. Try the crank with the ignition off to see that it works properly.

[Log in to Reply] [No Email]

riverbend

12-20-2004 05:14:16

Report to Moderator

Re: Diagnosing my electronics baby steps. in reply to Tanner Clark, 12-20-2004 04:17:21

Right on both counts. When the points are closed, the voltage on the distributor side of the coil goes to zero. The cam in the distributor should open the points 4 times per revolution of the distributor shaft.

When the points are closed, current flows through the coil and sets up a magnetic field. When the points open, the current flow stops, the magnetic field in the coil's primary winding collapses, and creates a high voltage in the seconary windings. That give you the spark.

Your distributor bushings or shaft might be worn out, that could let the shaft wobble around. You can set the point gap on any of the lobes (corners) of the dist. cam. If you set the gap on the #4 firing position (opposite #1), will the points close on all the flats ? If so, you might be able to get it to run that way.

If you have a belt pulley, you can use that to turn the engine over. With out a belt pulley or a crank, you can put the tractor in 5th gear and push on the rear wheel to turn the motor. In either case, it is easier with the plugs out.

Tanner, I'm curious, how old are you and what was your first car ?

Greg

[Log in to Reply] [No Email]

Magman

12-20-2004 06:33:24

Report to Moderator

Re: Diagnosing my electronics baby steps. in reply to riverbend, 12-20-2004 05:14:16

Hi Tanner, It sound like the dist shaft may be worn out all the little nubs should touch. This is what I do If i know there is no power going to the dist pull the coil wire then turn the motor over by the fan blade if the belts not tight you may have to push on the belt in the middle to tighten it then with the other hane turn the the fan blade. If you have a lot of compression then you may have to take the plugs out. Just make sure if you do this you take the coil wire of to make sure you dont get an accidental start and take your hand off. JON

[Log in to Reply] [No Email]

Andy Martin

12-20-2004 13:24:33

Report to Moderator

Re: Diagnosing my electronics baby steps. in reply to Magman, 12-20-2004 06:33:24

I use the fan, too, but go easy or you can bend a fan blade. Pull the belt out and in the direction you want to turn with one hand and use the other on the fan. If the fan belt is tight enough for the fan to turn the engine I think the fan belt is too tight for good water pump life. Same goes for the generator belt, don't get it too tight.

On an A, B, C it is even more important to not get the belts too tight. Even if you remember to fill the fan oil reservoir the belts should just do their job.

[Log in to Reply] [No Email]

Andy Martin

12-20-2004 13:31:11

Report to Moderator

Re: Diagnosing my electronics baby steps. in reply to Andy Martin, 12-20-2004 13:24:33

I forgot to add, just get the lobe close to the points, you can grab the rotor and twist it against the advance springs to set the points with the rub bar on the lobe.

If the distributor is really worn, Be careful about wiggling the shaft.

[Log in to Reply] [No Email]

[Options] [Printer Friendly] [Posting Help] [Return to Forum] [Log in to Reply]

TRACTOR PARTS	TRACTOR MANUALS

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. Shop Online Today. [ About Us ]

Home | Forums

Copyright © 1997-2023 Yesterday's Tractor Co.
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy

TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters

Website Accessibility Policy