I mess around with balancing clutches-mainly the P85 on Polaris. For the guys that don't have a $10k dynamic balancing machine, how close can you get it balanced? I usually find about 4-8g out of balance. Does anyone add weight to the clutch-like 4-8g on the light side to make it balanced. Drilling holes in the clutch face doesn't reduce much per hole.
I've seen professionally balanced clutches with a gob load of new holes drillied to lighten up the heavy side. Seems easier to compensate by adding weight on the light side.
The pto side bearing rides on a crankshaft stub I cut off of a junk crank. The cover side is a little harder to get a straight fit. Sometimes I find bushings that I can use on the cover to get the rod straight into the clutch center bolt hole. As for the clutch in the pic. It's a big block 600 poo and a 14mm shaft with a bearing on it .
I have a homemade ******* balancer. Same concept as a tire balancer. After I balance them, they run very true and long when I spin them. Out of balance is easy to see when the rod and bearings are bouncing along. Out of balance run way shorter spinning and always end with the heavy side down.
Just seeing what everyone else does.
I've seen professionally balanced clutches with a gob load of new holes drillied to lighten up the heavy side. Seems easier to compensate by adding weight on the light side.
The pto side bearing rides on a crankshaft stub I cut off of a junk crank. The cover side is a little harder to get a straight fit. Sometimes I find bushings that I can use on the cover to get the rod straight into the clutch center bolt hole. As for the clutch in the pic. It's a big block 600 poo and a 14mm shaft with a bearing on it .
I have a homemade ******* balancer. Same concept as a tire balancer. After I balance them, they run very true and long when I spin them. Out of balance is easy to see when the rod and bearings are bouncing along. Out of balance run way shorter spinning and always end with the heavy side down.
Just seeing what everyone else does.