The Ford Barn

700rpm · 11-01-2016, 06:37 PM

Will a new timing gear that is too far oversized cause a knock? That is, a .005 over, for example, installed to a crank gear that doesn't need an oversized timing gear. I don't have this situation; it just came up in a bull session yesterday.

James Rogers · 11-01-2016, 08:15 PM

Possibly.

Kurt in NJ · 11-01-2016, 08:26 PM

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If you add in a little off center grinding of the crankshaft that bounces the cam up the cam bore against the springs, add in a little xtra cam bearing clearance and you have the makings of a pretty good knock

11-01-2016, 06:37 PM	#1
700rpm Senior Member Join Date: May 2010 Location: Portland, Oregon Posts: 5,902	Timing gear knock Will a new timing gear that is too far oversized cause a knock? That is, a .005 over, for example, installed to a crank gear that doesn't need an oversized timing gear. I don't have this situation; it just came up in a bull session yesterday. __________________ Ray Horton, Portland, OR As you go through life, keep your eye on the donut, not the hole.

11-01-2016, 08:15 PM	#2
James Rogers Senior Member Join Date: May 2010 Location: Asheville,NC Posts: 3,104	Re: Timing gear knock Possibly. __________________ http://www.model-a-ford-4bangers.com/

11-01-2016, 08:26 PM	#3
Kurt in NJ Senior Member Join Date: May 2010 Location: on the Littlefield Posts: 6,155	Re: Timing gear knock Sponsored Links (Register now to hide all advertisements) If you add in a little off center grinding of the crankshaft that bounces the cam up the cam bore against the springs, add in a little xtra cam bearing clearance and you have the makings of a pretty good knock

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