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

Discussion Forum

Electrical problems drifving me crazy - Sears SS12

Welcome Guest, Log in or Register

Author

queen of spades

02-13-2008 19:37:46

Report to Moderator

I'm posting here in case anyone who doesn't read mtf sees this and can help me out.
I have a 1971 suburban ss12. My motor was completely rebuilt recently but now I have a new electrical problem. It all started when I forgot to tighten down the top terminals on my starter. I tried starting it for the first time and my friend said she saw sparks underneath the battery. That's when I eventually found the loose wires.
So what happens now is when I start the engine I hear buzzing. It's coming from the solenoid, because it vibrates. I've replaced the solenoid twice now with exact matches, and it still buzzes.
I also replaced the ignition switch. Still more buzzing.
My electrical tester says that the top terminal only has ~8 volts. The battery terminal on the solenoid has 12 volts. Same thing before and after replacing the switch and solenoid.
So tonight I noticed something else.
I removed the starter belt and put power directly to the starter. The pulley starts to spin but slowly at first. If I hold the pulley with my gloved hand it won't turn over at all when I start it over. So there clearly isn't enough power to turn the motor over if I (a woman) can hold the pulley with my own hand.
So, have I ruined my starter? The only thing I haven't replaced is the regulator but I don't see how that could affect any of this.

[Log in to Reply] [No Email]

Rich O'Rourke

04-26-2008 09:36:51

Report to Moderator

Re: Electrical problems drifving me crazy - Sears SS12 in reply to queen of spades, 02-13-2008 19:37:46

where did you buy the switch at, I cannot find one? Also, where does the wire from the M terminal on the ignition switch connect to on the engine? I just bought this tractor and the black wire was not connected to the engine, so once it starts, it cannot be shut off unless you pull the choke all the way out! thanks, Rich (richie25rich@yahoo.com)

[Log in to Reply] [No Email]

Trailer Trash Tractors

03-24-2008 20:08:19

Report to Moderator

Re: Electrical problems drifving me crazy - Sears SS12 in reply to queen of spades, 02-13-2008 19:37:46

Buy the used starter ! Never hurts to have
a rebuildable core for rebuilding later, they
aren't any easier to come by.

[Log in to Reply] [No Email]

02-14-2008 11:44:57

Report to Moderator

Re: Electrical problems drifving me crazy - Sears SS12 in reply to queen of spades, 02-13-2008 19:37:46

I clean and rebuild starters and starter-generators all the time, and if the stator or rotor is shorted, normally it will not turn over at all, normally when I run into what you are describing, the communtator is dirty, needs cleaned, the mica cut out of the commutator, and the brushes replaced, you could also have a broken spring on the brushes and not getting good contact. If I can help you, my email is open if you want to ask questions. But they are actually very easy to work on.
Jim

[Log in to Reply] [No Email]

queen of spades

02-14-2008 10:04:02

Report to Moderator

Re: Electrical problems drifving me crazy - Sears SS12 in reply to chevy65, 02-13-2008 19:37:46

Steve in in said: (quoted from post at 11:13:25 02/14/08) If you are getting 12 volts at the solenoid and have replaced it, then you probably have let the smoke out of the starter. Depending on the starter, it may be rebuildable at a small automotive electrical shop. At the very least they can test it.

I found a shop not far from here who is very familiar with the Delco Remy starter/generators. The guy told me it can run between $55 to $200 or more to repair, depending on if the armature is bad.
I also found a starter generator on Ebay, for $50 shipped. I'm not sure which is the better option at this point.

[Log in to Reply] [No Email]

Steve in in

02-14-2008 07:13:25

Report to Moderator

Re: Electrical problems drifving me crazy - Sears SS12 in reply to queen of spades, 02-13-2008 19:37:46

If you are getting 12 volts at the solenoid and have replaced it, then you probably have let the smoke out of the starter. Depending on the starter, it may be rebuildable at a small automotive electrical shop. At the very least they can test it.

[Log in to Reply] [No Email]

queen of spades

02-14-2008 04:53:36

Report to Moderator

Re: Electrical problems drifving me crazy - Sears SS12 in reply to JT, 02-13-2008 19:37:46

The battery is a brand new 300 cca "werker".
Before I rebuilt the engine I took off every connection (including lights & ammeter) and sanded down to bare metal. It has brand new pos & Neg battery cables, and a new cable going from solenoid to starter.
The problem started after the sparks from loose starter/generator wires.
I will try connecting my tester to the negative battery & negative starter and will post here when I'm finished.

[Log in to Reply] [No Email]

El Toro

02-14-2008 03:50:29

Report to Moderator

Re: Electrical problems drifving me crazy - Sears SS12 in reply to queen of spades, 02-13-2008 19:37:46

Take a hydrometer and check the electrolyte in each battery cell. You should have a reading on each cell at 1.260. If one is at 1.100 replace the battery. Make sure all your battery cables
aren't cracked and the connections are nice and shiny. Hal

[Log in to Reply] [No Email]

IH2444

02-13-2008 23:13:33

Report to Moderator

Re: Electrical problems drifving me crazy - Sears SS12 in reply to queen of spades, 02-13-2008 19:37:46

I would say if the battery is good maybe a bad connection somewhere. Maybe a chassis ground point rusted up ?
While trying to crank read the voltage from the neg post on the battery to the case on the starter. If you read over a volt or so you have a bad connection somewhere in the ground circuit.

[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