Cam Damage (gear)
Safety Car
Joined: Apr 2005
Posts: 3,624
Likes: 431
From: Dale City VA
The worst of that chip is right on the edge of the area where the gears will mesh..... Only way I'd use that is if the engine had an external oil pump that didn't need the cam drive gear.
Even then it's ground on a SADI core.... So I wouldn't use it in one of my engines at all.
Will
Even then it's ground on a SADI core.... So I wouldn't use it in one of my engines at all.
Will
Thread Starter
Team Owner
Joined: Aug 2004
Posts: 21,543
Likes: 3,216
From: Park City Utah
Yeah...that's what I was thinking too...but kind of hoping someone would talk me into it. 
It's local, CHEAP, and a good grind for my junk (the Kart). But yeah, I don't want to trash the engine with a dumb move. Thanks for looking/posting.
It's local, CHEAP, and a good grind for my junk (the Kart). But yeah, I don't want to trash the engine with a dumb move. Thanks for looking/posting.
Safety Car
Joined: Apr 2005
Posts: 3,624
Likes: 431
From: Dale City VA
The problem is that it's cheap ****. The only reason SADI cores are used for hyd rollers is because cam companies can make more profit on them vs a quality billet steel core...... On SADI the real hardening is only the surface layer which can get pretty hard but the core material is still Cast Iron which is very brittle and well not very hard..... now roller lifters use billet steel wheels.... which are harder than the SADI cam lobes and under certain load conditions they will crack the surface layer and eat everything up....
The only people that will advocate using them is cam grinders that sell them.
People get away with using them on mild roller lobes but I've seen too many SADI roller failures come in the shop to put my reputation at risk. The price difference on a custom cam really isn't that much.
Will
Last edited by rklessdriver; Jul 24, 2019 at 03:31 PM.
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