You can burn the coil(s) if you use too much heat.
I made a plate out of 1/4 inch steel to support the bolts on the harmonic puller.
The plate helps keep everything pulling evenly. If you have a recoil ratchet like the one pictured use it as a template to get the hole spacing.
I had a heck of a time getting a flywheel off of a 33 hp a while back, and I found the plate really helped keep the grade 8 bolts pulling squarely.
