Daniel5691

Hi !

Just inspecting my crankshaft gear and noticed this wear on the inner diameter.
There are 3 "grooves" worn into the inner surface, where the gear contacts the crank itself and the woodruff key area...
The 'old' crank surface is smooth.. and any irregularities seen in the image of the crank below are just from my dirty grimy filthy hands, no actual gouging on the crank.
1. Do you have any clues on the cause of this damage? I suspect maybe a prior rough assembly/disassembly...
2. Would you re-use this crank gear?
I was going to send it out along with the oil pump gear to have it coated; I do need to use this "shape" of gear teeth in my 5.0L hybrid because my 16v Euro cam gears share this gear tooth pattern... Thanks.

GregBBRD

Do yourself a favor. Replace all the gears with the newer tooth profile and use the later (factory or Gates) belt (with a stock tensioner.)

The 2 valve updated, super trick, anodized billet aluminum can gears are a steal at $265 (retail) versus the $465 4 valve cam gears!

This is especially important if you are running slightly stronger valve springs. (Which is a good idea, if you plan on running higher than stock Euro rpms.)