On 09/23/2017 11:59 AM, Chaya Eve wrote:
On Sat, 23 Sep 2017 14:47:08 +0000, Stormin' Norman
wrote:

The splines on the clutch disc must line up with the splines on the
flywheel.

When the pressure plate is tightened in place, the clutch disc is held
very firmly in place. Without aligning the splines first, you will
likely have a very difficult time inserting the transmission shaft
through the clutch disc and into the flywheel.

Most DIYs seem to gloss over this step.

As an example, this DIY at time 331 seconds, simply shows the bright red
centering tool already in place!
https://youtu.be/S5xSOy03NAg?t=331

That same video, shows at time 352 seconds, a *different* centering tool.
https://youtu.be/S5xSOy03NAg?t=352


It's one of those things you don't necessarily think about that screws
up someone without experience in the job. It's like the whole angle
discussion. They might show sliding the transmission back in place like
a stick of butter in a hot frying pan but after you've laid on your back
sweating and cursing trying to rattle a heavy chunk of metal just right
to get it started in the splines you realize the importance of being
able to line everything up nicely.