slociviccoupe
Well-Known Member
seing what type of coupler system one would trust. Have few options. Driving a 4 stage scavenge pump off back of the cam.
A hex drive like most dry sump pumps are driven on sprint cars and few other applications off front or rear of cam.
Or a lovejoy finger type coupler with the damper between the fingers.
And lastly pin drive with few hardened steel pins in flanges and a damper between the pins and one of the flanges.
Scavenge pump is gerotor type so shouldnt have pulsations. But any coupler type has to be reliable. With the hex drive it wouldnt need a seal and could get some oil from the back of the cam to lube the hex. With a lovejoy finger coupler would have to be external and incorporate a seal for back of the cam. Same with the pin drive type coupler.
A hex drive like most dry sump pumps are driven on sprint cars and few other applications off front or rear of cam.
Or a lovejoy finger type coupler with the damper between the fingers.
And lastly pin drive with few hardened steel pins in flanges and a damper between the pins and one of the flanges.
Scavenge pump is gerotor type so shouldnt have pulsations. But any coupler type has to be reliable. With the hex drive it wouldnt need a seal and could get some oil from the back of the cam to lube the hex. With a lovejoy finger coupler would have to be external and incorporate a seal for back of the cam. Same with the pin drive type coupler.
