HiPo timing gear hatchet

frank.herbst_old · January 26, 2011 at 7:19 AM

Does anyone know what the hatchet on the lower timing gear does? I’m going to check with Comp Cams this morning to see if it requires a special lower gear when replacing the timing gear set. Has anyone dealt with this recently?

Edited by - SixT5HiPo on 01/27/2011 00:44:45

C6ZZKGT · January 26, 2011 at 9:03 AM Official Post

The hatchet is part of the balance assembly for the harmonic balancer. It helps move some of the balance nearer to the front main to take some of the load off of the crank snout. You definitely need a special sprocket to retain this hatchet. Some people will rebalance the engine and eliminate this hatchet however that defeats Fords original purpose of spreading out the balance load. The Hipo balancer has a different counterweight that is lighter than a standard balancer and the hatchet makes up the difference.

-Fred-

frank.herbst_old · January 26, 2011 at 10:16 AM

Fred,

I know some people don’t reuse the hatchet. I’m thinking if Ford went to the trouble to use it they had a good reason to do so. Problem is Comp Cams doesn’t have a new timing gear set listed for the HiPo engine. Can you recommend a place to purchase a correct timing gear set for the HiPo engine?

Thanks,

Frank

C6ZZKGT · January 26, 2011 at 11:08 AM Official Post

Frank, I just sent you a PM on this.

-Fred-

GregM_old · February 7, 2011 at 7:18 PM

Just ordered the cam gear, crank gear and chain from Jegs, Cloyes part #s

Participate now!