[bsfree]

Hoping someone may know how many flywheel teeth a Perkins 108 engine has. Reason is I am installing a new tach that is driven by a magnetic pick up and need to set the tach dip switches according to a flywheel teeth count table. I have the owners engine manual but it it doesn't contain all the info of a workshop manual. There may not be one definitive answer, and a friend tells me we can do it with a strobe, but I would prefer to know the correct numbr of teeth, if possible.
Hope you can help.