The first gear I had walk off on me WAS a Crane RV cam (never seen more then (4-4500) And was not heated by the shop that did it. And It came off in about a week. I had this Strangest Rattle/knock One time you would hear it at the front of the motor maybe Next at the rear, After about todays of this I finely figured it out it was the cam gear. I called Crane to ask If they would replace it. First they told me it should have been Mech. fastened, Well I told them there was No foot Notes in regards to that. And They said ok send it to US and we'll Replace it. So I sent lifters and cam Back to them. But that OPPs cost me New cam bearings, Dist. I got lucky as to the lower end. But after that I ALWAYS heat and have It mech. fastened.
Larry/Twisted6 [oooooo] Adding CFM adds boost God doesn't like ugly.