Tractor Talk Discussion Board |
Re: Valve Springs
[ Expand ] [ View Follow Ups ] [ Post Followup ] [ Return to Forum ]
Posted by Wayne on December 23, 2003 at 18:56:02 from (64.12.96.236):
In Reply to: Valve Springs posted by Jim on December 23, 2003 at 16:00:03:
Jim, you don't say what kind of engine your working on here. For the sake of helping I'll assume it's a small engine of some type. Some brands have a compression release made in with the cam. It's designed to keep the intake open long enough to get the engine spinning over fast enough to start easy. At a certain speed centrifugal force takes over and kicks it out letting the valve close and the engine actually start. Like the other posts said you may be able to find a spec for the spring and test it (in some cases only if you have the right tools. It could also be the seat has worn enough to close up the clearance between the valve and lifter which will cause it to remain open. In this case you can usually grind the valve stem to regain the lost clearance. Hope this helps.
Follow Ups:
Home
| Forums
Today's Featured Article -
Restoration Story: 1951 Farmall H - by The Red (John Fritz). I have been a collector of Farmall tractors since 1990 when I first obtained part of the family farm in Eastern Indiana. My current collection includes a 1938 F20, 1945 H, 1946 H, and the recently purchased 1951 H. This article will focus on what I encountered and what I did to bring the 1951 NEAR DEATH Farmall H back to life.
... [Read Article]
Latest Ad:
Sell 1958 Hi-Altitude Massey Fergerson tractor, original condition. three point hitch pto engine, Runs well, photos available upon request
[More Ads]
Copyright © 1997-2024 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 HeadquartersWebsite Accessibility Policy |
|