Dec
On Sun, 10 Dec 2017 11:17:02 -0500, John H
wrote:
- show quoted text -
WD40 is great for what it was designed for (Water Displacement) but a
poor substitute for a lot of things people use it for.
It really doesn't matter much on these flywheels tho. That is 2 finely
machined parts pressed together with thousands of pounds of force.
(75-85 ft/lbs times the mechanical advantage of a fine thread screw)
The joint is pretty much air tight and a liquid solvent is not getting
in there. Heat is the real answer but you don't need a lot of heat to
break that bond if it is applied properly and you have a little
patience. The puller on, overnight, always seems to work for me. I
think it may just be the cool night air followed by sunrise heating up
the flywheel or something. They always seem to be loose by the time I
get up ;-)
......

I’ve found that tapping (with reasonable force) around the hub of the flywheel with a hammer helps to unstick the wheel from the tapered shaft.. It’s always rusty in and especially around the key....