Posted by Brad Gyde on March 29, 2011 at 19:00:39 from (173.109.232.110):
In Reply to: ih 756 gas timing posted by aksteve on March 29, 2011 at 12:31:02:
[quote="aksteve"] I have timed per the manual but when I turn it over I can tell it is firing before the valves are closed as it is exhausing through the carb. lol I know its a timing issue but I have proved ( i think) tdc by stroking the cylinder till the piston is closing after the intake valve opens.
From this, I gather that maybe you're not on TDC.. If popping thru the carb you either have firing order off, or are off timing.
From your other responses I annot determine whether you removed your distributor or not..
What I would do is this:
1)Remove valve cover
2) Turn over engine until the intake valve closes, then using a wire or the like in the #1 plug hole, slowly turn over until the wire in plug hole seems to have found "high point" (in other words, the wire seems to drop into cylinder no matter which way you rotate the engine)
3) At this point, I would pull dist. cap, and try to take notice to where the rotor is pointing.. Should be at #1, but I would almost bet you're nearly 180 degrees out of time.
4) Remove distributor and get rotor CLOSE to #1 terminal on cap (if necessary)
5) leave distributor lamp loose, install cap/rotor, ground #1 plug, turn on ignition, and rotate dist. SLOWLY and watch for spark.
That should be "static timed" and should very well be close enough for it to run.. Provided that it is supposed to fire at TDC. I have done similar on several engines, sometimes you set the degrees differently (small block chevy comes to mind) but the process is still pretty much the same.
I'm sure I just told you what the service manual said.. But, hope this will help..
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 ]
Today's Featured Article - Women and Tractors - Tractor Engine Repair - by Teri Burkholder. One of the great things about working on a tractor engine with your other half is that you know what he is thinking of at all times and can anticipate his every move and his next thought of what he will do. With Ben, anyway, I can tell! He'll be busy working and I�m handing him tools and he says, "give me that..." and I�ve already got it in his hand or "hand me that....."and I�ve got the portable light right where he needed it placed to see. "Run in the house and get me a...."as I open th
... [Read Article]
Latest Ad:
1965 International Harvester McCormick Farmall cub tractor 2,500. Two owner tractor. My grandfather bought new in 1966, then we inherited it. Have all the paperwork original manual and all maintenance records. It starts and moves. Comes with underbelly mower, plough, and some other attachments.
[More Ads]
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.
