Re: mag on B N

Posted by Farmer Bob on November 17, 2003 at 17:23:22 from (64.113.13.114):

In Reply to: mag on B N posted by john farthing on November 17, 2003 at 13:42:04:

John,
If you are working with an H-4 Mag behind that plate you removed you line up the distributor spindle's letter (R) with the camphored tooth on the pinion gear below it as this is a clockwise rotating mag. (You would line up the (L) with the camphored tooth for a counterclockwise rotating mag). If you set the rotor on the spindle at this point the contact on the rotor should be pointing at approx the 2 o'clock position and the drive lug on the other end of the mag should be cattycorner or about 2 o'clock and 8 o'clock direction.
Ensure the engine is at #1 TDC on compression stroke by lining up the mark on the flywheel that says D/C with 1-4 under it with the mark on the flywheel cover looking through the inspection hole in the bottom of the bell housing. And, remove the front spark plug and put your finger or thumb over the hole and rotate the engine until you feel air coming out. This means the #1 pistion is coming up to TDC on compression stroke. Using a light look into the hole and stop rotating engine when piston gets to the very top of the stroke. Now install the mags drive lug into the slot in the mag housing and install the mounting bolts. Tighten them thumb tight. Push the top of the mag towards the engine. Rotate the engine almost two complete revolutions of the hand crank and feel again for air coming out of #1 plug hole. Watch with a light for the #1 piston to reach the very top of the stroke and stop rotating when it is at TDC. Now pull the top of the mag out towards you or away from the engine block just until you hear the impulse trip. Tighten the mounting bolts up. The rotor contact should be pointing at about the 2 o'clock position, install the #1 plug, mount the dist cap and install the wires from the cap to the spark plugs, starting with the post of the cap corresponding to the rotor contact as #1 to #1 (front)plug and then moving clockwise around the cap the next wire to #3 plug, then #4 plug and last #2 plug. Hook up the coil wire to the center post on the dist. cap and try it. It should be close enough to make it run. You can play with the mag to fine tune it but you may be right on. Hope this helps.

Follow Ups:

Post A Followup Name: E-Mail: Subject: Re: Re: mag on B N 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 ]