Join Date: Sep 1999
Location: Southeast Iowa
Thanked 0 Times in 0 Posts
Re: Are angles suppose to be the same on a cv driveshaft?
[img]/wwwthreads_images/icons/crazy.gif[/img] You see, drivelines with standard u-joints operate under the rule that the joint angles each end must be the same to cancel each other out. Each joint has to have a cancel-mate, or BIG vibrations occur when the joint action goes through the cycle: fast-slow-fast-slow-fast...well, you get the idea...joints do not deliver power at a constant RPM...unless they are......you guessed it....CONSTANT VELOCITY u-joints. SO.....when you install a CV joint, it is IT'S OWN cancel buddy, and needs no help from the other end of the shaft. On the other end, the standard (non-CV) joint is now all alone, with no cancel buddy, he is mad at you, so he will deliver power all crazy[img]/wwwthreads_images/icons/crazy.gif[/img]...fast-slow-fast-slow....now that he has no other joint to help him cancel out. SOOOOO....you have to make him a ZERO ANGLE joint...so there IS no fast-slow-fast-slow...it is just like there was no joint action at all. So the setup on a mixed (CV joint and regular joint on the same driveline)driveline is....CV joint has angle...standard joint points directly toward the driveline with no angle, except for whatever you build in to allow for normal windup and loading. [img]/wwwthreads_images/icons/wink.gif[/img]