Thread: Dist.gear, cast or steel.....5.0 HO

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I have a 92 5.0HO, converted to carbs, Accel Duraspark Dist., GM HEI module.

First fire up she ran great, noticed slight water leak behind timing housing, pulled found some pitting, repaired!

While cover was off I noticed massive wear on the dist. gear!!!!!!
Motor maybe had 15 min run time. !@#$%^&*


Flat tappet cams use cast gear, roller cam use steel gear......

How can I tell what cam I have?

To my knowledge the engine is factory stock, I pulled her from a 1992 Mustang 5.0 HO w/AOD.

I can't afford a rebuild or big delay on project and want to get the right gear and distributor. Current part is Accel 9207, Mr. Gasket said that it's no longer made, they said to us Accel 71201E.

I just need to know FOR SURE!

I've heard bronze for roller cams. I know cast gears have a black coating, maybe the steel doesn't?

I've been using the new Comp composite gear, its a plastic polymer and it holds up a hell of a lot longer than bronze and they make them to fit either a large or smaller shaft od. I have a roller cam and I wasn't supposed to have to switch, but I noticed some wear starting on my cam gear so I swapped it out with the new composite one. Works great and it doesn't wear out, if you want to be SURE, you might wanna try this one out, it definately won't wear out your cam nor will it break down. They use em on dragsters and high hp engines, so I'm pretty sure they are reliable.

I have a bronze gear in my HO. Seems to be holding up well.

You may need to shim the distributor.

Thanks!

Steel!

I had not heard about the brass or polymer?

I'll have to do a little more research on these!

Again, Thanks!