Hey everyone, hope you're having a great day!
I'm in desperate need of some guidance for the problems I'm having with my 40 series torque converter.
Quick info:
Engine: Predator 420cc (governor removed)
Transmission: 40 series driver and driven with custom 1/2" aluminum backplate (axle distance based on belt chart, 203785)
Drive: Chain drive to solid rear axle
*I just took apart the driver pulley, applied graphite, and cleaned and polished the sheaves with a brass wire brush*
I'm using this setup on an old cushman golf cart which is quite hefty. The problem I am experiencing is the torque converter belt becoming stuck in the driven pulley. Despite looking, I haven't been able to find anyone else who has experienced the same problem.
I suspect that the vehicle's heavy weight is causing the driver pulley sheave to move inward with throttle, in turn moving the driven sheave outward, which causes the whole torque converter to bog down and finally become stuck. Additionally, while the axle-axle distance is set up correctly (at least according to comet's belt chart), the engine constantly stalls on startup and needs throttle to be applied to stay alive. The belt leaves black rubber residue on the driver pulley's sheaves that I remove with brake cleaner.
Furthermore, sometimes the cart starts to creep on startup. This leads me to believe that the idle is too high, and that I may need to swap out the cam rollers and springs. What're your guys' thoughts? I think that the heavy weight of the cart is working to the detriment of the torque converter, which can't handle that kind of stress.
Thanks, and have a great day! I will post photos when it becomes light out for more clarification.
I'm in desperate need of some guidance for the problems I'm having with my 40 series torque converter.
Quick info:
Engine: Predator 420cc (governor removed)
Transmission: 40 series driver and driven with custom 1/2" aluminum backplate (axle distance based on belt chart, 203785)
Drive: Chain drive to solid rear axle
*I just took apart the driver pulley, applied graphite, and cleaned and polished the sheaves with a brass wire brush*
I'm using this setup on an old cushman golf cart which is quite hefty. The problem I am experiencing is the torque converter belt becoming stuck in the driven pulley. Despite looking, I haven't been able to find anyone else who has experienced the same problem.
I suspect that the vehicle's heavy weight is causing the driver pulley sheave to move inward with throttle, in turn moving the driven sheave outward, which causes the whole torque converter to bog down and finally become stuck. Additionally, while the axle-axle distance is set up correctly (at least according to comet's belt chart), the engine constantly stalls on startup and needs throttle to be applied to stay alive. The belt leaves black rubber residue on the driver pulley's sheaves that I remove with brake cleaner.
Furthermore, sometimes the cart starts to creep on startup. This leads me to believe that the idle is too high, and that I may need to swap out the cam rollers and springs. What're your guys' thoughts? I think that the heavy weight of the cart is working to the detriment of the torque converter, which can't handle that kind of stress.
Thanks, and have a great day! I will post photos when it becomes light out for more clarification.