[quote]ORIGINAL: MassiveMods

.... so does any one know what the epoxy is called ?

We have used JB weld on several racing engines. Never had any come loose but the gain was just a couple hundred. RPM. Be sure to roughen the area with a dremel. Low heat i.e. 150-200F will allow the JB to flow. This area of the crank runs fairly cool. The same JB weld is used on Mouse Can mufflers and seems to handle the temperature OK. We did not see any effect on engine balance.
Fred