Two clutches mounted on the crankshaft. The outside clutch is the low speed. When the engine reaches a certain RPM, the second clutch engages and changes the gear ratio of the trans. Basically like a two speed automatic. A control in the front allows you to shift the trans to forward, reverse , or neutral .
What I want to see are weights and springs. If it's weights then the centrifugal force moves a pulley face closer to the center forcing the belt up. The weights could develop flat spots or cause wear inside the ramps in the pulley. If it's springs then they are pulling in (or holding) what is basically a couple of brake pads that sling out and make contact with a bell. The friction material can glaze over time or extreme load and cause slipping. Worn springs can cause the pads to engage too soon and bog the motor or cause extremely slow acceleration.Originally Posted by w2amr
Two clutches mounted on the crankshaft. The outside clutch is the low speed. When the engine reaches a certain RPM, the second clutch engages and changes the gear ratio of the trans. Basically like a two speed automatic. A control in the front allows you to shift the trans to forward, reverse , or neutral .
In either case, belt condition is a factor. I'd like to see more pictures when you get the chance. There are many different versions of this design but the principle is the same.
. We won't know what we're dealing with until I get them off and taken apart. Looks like the big nut on the end of the crankshaft is holding everything on. Hopefully both clutches have keyways and will come off with a puller.
Posting Permissions
Reply With Quote