Welcome! Please use the navigational links to explore our website.
PartsASAP LogoCompany Logo Auction Link (800) 853-2651

Shop Now

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

Farmall & IHC Tractors Discussion Forum
:

F 12 Timing

Welcome Guest, Log in or Register
Author 
Roger 2021

02-09-2007 08:06:21




Report to Moderator

I had to change out the mag.I went to the service manual and set the timing where they recomended it. Next I tried to hand crank it, not even a sputter heres my question. I bring the #1 piston on compression up to TDC when I hear the mag snap the piston is down the cyl somewhere between a 1/4 inch 1/2 inch past TDC is this corect. Im a little leary of messing with the timing to much as I dont like broken arms.I would try to pull start it except I live in downtown Phoenix. The trator has steel wheels the ppd would just love that, they have no sence of humor. Thanks for any help

[Log in to Reply]   [No Email]
Dave Allgire

02-09-2007 17:57:17




Report to Moderator
 Re: F 12 Timing in reply to Roger 2021, 02-09-2007 08:06:21  
I'm going to quote directly from an original owners manual for F-12 magneto timing. "Crank engine slowly until impulse trips. The D.C. No. 1 mark on flywheel should be in line with, or not more than 8 degrees below (25/32" on flywheel rim) and never above the timing mark on flywheel housing when the impulse coupling trips." That said I have cranked the engine until the mag "trips" and looked for the D.C. mark on the flywheel. If it wasn't in the proper position, I would change the setting on the "fine tuning plate" by removing the two screws and rotating the plate in the proper direction. Be careful as these two bolts have to line up exactly with their respective holes or you will only be able to get one of them to start. Put it together, crank it slowly until you get the mag to trip at D.C. #1 and see where the mark on the flywheel is. Remember in which direction you have made your adjustments so you can correct them if you have moved in the wrong direction.

[Log in to Reply]  [No Email]
gene bender

02-09-2007 13:23:59




Report to Moderator
 Re: F 12 Timing in reply to Roger 2021, 02-09-2007 08:06:21  
When it snaps the piston could be down a little. Your spark and advance lever should cover that move the lever to retard spark then check again.



[Log in to Reply]  [No Email]
[Options]  [Printer Friendly]  [Posting Help]  [Return to Forum]   [Log in to Reply]

Hop to:


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