posted December 10, 2003 06:21 PM
ford uses a steel billet distributor gear with their factory billet hydraulic rollers. aftermarket rollers always call for a bronze gear. cast iron gear should be okay with any flat tappet cam. if it keeps wearing them out, the cam may be bad or the gear may not be installed correctly.
also, don't over-rev the engine when the oil is cold. a high volume oil pump combined with cold oil can be hard on the gear......and other stuff too...
posted December 10, 2003 10:46 PM
If your putting used distributers with worn gears on a cam other than ones that where meshed with could cause them to fail.I'm trying a new cam this next year and I will put a new gear on the dist.I run a 347 with solid cam high volume pump ,the same dist. and cam for 3 years 0 gear problems
posted December 11, 2003 04:27 PM
the engine was a race engine the cam was new also the cam was not roller or solid. the distributor was a new HEI ford replacment distrib. had a steel gear. NOT STOCK anything oil press wasnt overly high and it wore out the cam and gear so i got a new gear and put it in a diff. engine thinking maybe block casting imperfections? that dist gear went away also, so i got a diff distrib. and same problem?