If someone wanted to do the math they could figure out the approximate rocker arm ratio using the cam lobe lift and valve lift numbers I posted. Valve opening was measured with a dowel indicator contacting the top of spring retainers. Would think if I added the .019 valve to rocker clearance to valve lift it would tell me real real close what the rocker ratio was on the measured valve.
Camshaft number I posted is the same cam as part number 49900DCX in parts book. If its a later print parts book or IH on the line lookup the part number will show 49900DDX. IH didn't use the 49900DD until 350 production was already underway. Then used as a replacement cam for previous models. Difference between a DC and DD cam was the cam gear retaining threads, right on DC and left on DD.
This was a used cam so may have some wear. Think I remember seeing that the specs said .270 lift somewhere when new. Can't be sure on that though.
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 - Trenching With a Plow - by Staff. Introduction: This interesting information came from one of the discussion forums here at YT. We thought we should place it up front so it could be read by anyone interested in putting old iron to work. [Editor] I tried something new today, and it worked so well I thought I should post it - in case it might help someone else. I'm running 100 yards of 4" drain pipe from the gutter downspouts of our house to a pond down the hill. This should hel
... [Read Article]
Latest Ad:
1964 I-H 140 tractor with cultivators and sidedresser. Starts and runs good. Asking 2650. CALL RON AT 502-319-1952
[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.
