Nfrancis63
Member
I know there are lots of threads concerning motor failure and connection problems but I just thought I would share my experiences in case they may help someone with similar problems.
The motor cutting out was an ongoing problem which I solved temporarily by jamming bits of tin foil in the connectors to take up the slack of the worn pins, this seemed to work ok and got me out of trouble on a few occasions.
The next problem was when the motor started dragging when I back pedalled, this got worse very quickly so I called performance bearings and he advised which bearings I would need to cure the problem. A few days later they arrived and I stripped the motor, which was actually very easy to service and repair.
The main axle shaft was in good condition, but the two outer bearings were completely shot and needed replacing. I 3d printed a tool to get the correct spacing for the outer crankcase bearing and put it back together with no problems. The only problem I could foresee now was the belt, which was starting to split and not worth risking putting back.
I managed to source the belt from Gates, so I got 3 to cover for future failures, which in hindsight was a good decision. The belt tension was a problem, because the tool was really expensive and me thinking is it really that critical, I guessed and stripped the belt in two rides. Just by extensive searching I found a tool which is used to torque schraeder valves which is set to 0.25nm for £12, so I got that and tried another belt.
This time was more successful, with one modification, the peak power needed to be dialled down to 90% to stop it from slipping. I don't know whether the belt is slightly different or the tool is inaccurate but its really no bother to me.
After repairing the motor the connection problems came back and after a few weeks of trying to bodge it to get it working reliably, I decided to replace the connector on the battery. I found a company that sells them (€35), and ordered one. When it came I noticed the pins were longer so I am guessing that is to solve the connection problems, took battery apart and with a bit of soldering the connector was in and problem solved.
I hope this might help someone who has bearing issues or the connection problems, and they really are very simple things to solve if you have a bit of mechanical knowledge and the correct tools. I am happy to answer any questions, although I am not an expert I can point out the pitfalls of taking on these jobs for a diy project.
The motor cutting out was an ongoing problem which I solved temporarily by jamming bits of tin foil in the connectors to take up the slack of the worn pins, this seemed to work ok and got me out of trouble on a few occasions.
The next problem was when the motor started dragging when I back pedalled, this got worse very quickly so I called performance bearings and he advised which bearings I would need to cure the problem. A few days later they arrived and I stripped the motor, which was actually very easy to service and repair.
The main axle shaft was in good condition, but the two outer bearings were completely shot and needed replacing. I 3d printed a tool to get the correct spacing for the outer crankcase bearing and put it back together with no problems. The only problem I could foresee now was the belt, which was starting to split and not worth risking putting back.
I managed to source the belt from Gates, so I got 3 to cover for future failures, which in hindsight was a good decision. The belt tension was a problem, because the tool was really expensive and me thinking is it really that critical, I guessed and stripped the belt in two rides. Just by extensive searching I found a tool which is used to torque schraeder valves which is set to 0.25nm for £12, so I got that and tried another belt.
This time was more successful, with one modification, the peak power needed to be dialled down to 90% to stop it from slipping. I don't know whether the belt is slightly different or the tool is inaccurate but its really no bother to me.
After repairing the motor the connection problems came back and after a few weeks of trying to bodge it to get it working reliably, I decided to replace the connector on the battery. I found a company that sells them (€35), and ordered one. When it came I noticed the pins were longer so I am guessing that is to solve the connection problems, took battery apart and with a bit of soldering the connector was in and problem solved.
I hope this might help someone who has bearing issues or the connection problems, and they really are very simple things to solve if you have a bit of mechanical knowledge and the correct tools. I am happy to answer any questions, although I am not an expert I can point out the pitfalls of taking on these jobs for a diy project.
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