Re: Farmall 450 Ignition Wiring

Posted by captaink on August 10, 2004 at 08:28:04 from (66.115.212.249):

In Reply to: Farmall 450 Ignition Wiring posted by Brian Schmidt on August 10, 2004 at 08:14:03:

I know the 560 had a ballast resistor in line to the 6-volt coil, so I’m guessing the 450 was similar. If you have a 12 volt coil you don’t need the resistor however…

On the 560 there is a wire from the starter solenoid to the coil side of the resistor. This wire carries 12 volts to the 6-volt coil (bypasses the resistor) while the solenoid is engaged. As soon as the solenoid disengages, it returns to 6-volts to the coil. This was commonly called a 12 volt start-6 volt run system. Putting 12 volts to a 6-volt coil increases the spark for starting and the short duration does not adversely affect the ignition parts. The thought is that it will make starting easier.

Hope this helps!

Follow Ups:

Post a Followup Name: E-Mail: Subject: Comments: Optional Link URL: Link Title: Optional Image URL: Email Notification: If you check this box, email will be sent to you whenever someone replies to this message. Your email address must be entered above to receive notification. This notification will be cancelled automatically after 2 weeks.

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 ]