Re: Valve Springs

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:

Post A Followup Name: E-Mail: Subject: Re: Re: Valve Springs 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 ]