Re: Re: head studs vs. bolts

Posted by TimV on January 11, 2003 at 19:49:54 from (64.19.90.157):

In Reply to: Re: head studs vs. bolts posted by Bill Smith on January 11, 2003 at 17:32:35:

The reason that many engines need new head bolts is that a bolt is like a spring. When it is properly assembled and tightened, a bolt stretches. This stretch is what holds the flanges together. If a bolt is stretched correctly, it is still within the reigon that metallurgists call "elastic deformation". This means the bolt can deform and still shrink back to the original length. If a bolt is tightened too much, it can stretch to the point of plastic deformation. Once this happens, the bolt will no longer shrink back to its original length, and cannot be re-used, as it will no longer hold. Head bolts are typically stretched into the reigon of plastic deformation, and if you try to re-use them you run the risk of not putting the correct amount of pressure on your head gasket. Because of this, it's best to use new bolts every time.

Follow Ups:

Post A Followup Name: E-Mail: Subject: Re: Re: Re: head studs vs. bolts 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 ]