Hey all just trying to track down some information for my machinist.

Does anyone know the bolt circle pattern for the flywheel ?

THANKS

 

There isn't one, the flywheel is held in place by a very large single nut. As to the aftermarket flywheels which use the auto bolt pattern you're best off buying the aftermarket flywheel you intend to use and measuring it directly. The latter is what I did for my project.

 

Yes the auto bolt pattern.
Does anyone have the measurement or can measure it for me ?

THANKS

 

1 10mm bolt at each corner of an inscribed hexagon of r= ~1.9235". Taken from an ACT flywheel.

Good luck.

 

I was looking at a similar project recently and got these measurements from a FD flex plate. Counterweight Bolt circle is 97.7mm with six 10mm spaced evenly around its circumference. Pressure Plate bolt circle is 320mm with six 8mm bolts spaced evenly along with the dowels on the circumference.