Re: Flywheel and pressure plate

Posted by Packard Don On 2019/10/26 19:24:52

It's been decades since I've worked on a Packard clutch but as I recall the counterbores are there to make it easier to align the bolts during installation.

Chris, a counterbore in this case is where the first few threads are bored away leaving a smooth, round hole that acts as a guide. A counterbore is also used when putting the bolt head below the surface.