The Ford Barn

2speed · 05-10-2024, 10:58 AM

In replacing the timing gear with aluminum, I am installing a new crank gear. The new gear is tight. I know they are supposed to be tight because of harmonic reasons.

I was going to deep fry the gear to make it easier to go on, but before I did that I measured things up.

Crank: 1.351"
Old Gear: 1.350"
New Gear: 1.349/1.3485

.001" press fit I get, .002+ is tons, like literally. I don't want to put force the gear on and then have it split or something stupid down the line. Anyone have the drawings/measurements of what everything is supposed to be? Crank snout and gear bore?

05-10-2024, 10:58 AM	#1
2speed Member Join Date: Apr 2022 Posts: 45	Tight crank gear In replacing the timing gear with aluminum, I am installing a new crank gear. The new gear is tight. I know they are supposed to be tight because of harmonic reasons. I was going to deep fry the gear to make it easier to go on, but before I did that I measured things up. Crank: 1.351" Old Gear: 1.350" New Gear: 1.349/1.3485 .001" press fit I get, .002+ is tons, like literally. I don't want to put force the gear on and then have it split or something stupid down the line. Anyone have the drawings/measurements of what everything is supposed to be? Crank snout and gear bore?