Client was running '48 Super A-V and it quit. I checked for spark...nada
Noted that I wasn't getting the usual magneto impulse coupling click, so pulled it off and disassembled on bench, and find the pawl springs pretty weak.
But I read that these springs were later added, and the pawl mechanism/ impulse coupling is only for low cranking rpm's, so weak pawl springs was not the cause of the stall.
Yes?
So, really I need to check other factors in the magneto, like coil resistance etc.
Yes?
Anything else I can check out while it's on the bench? The pawls are really floppy, and springs are weak. Tractor ran pretty well, with an occasional miss and stutter that wouldn't respond to carburetor adjustments.
Oh yeah, client had carb off when it wouldn't start one day, and now it takes a whiff of ether to start...choking it will flood it. Float too high or too low? Plugs show tan insulator/black nose, but likely from oil burning.
C
Noted that I wasn't getting the usual magneto impulse coupling click, so pulled it off and disassembled on bench, and find the pawl springs pretty weak.
But I read that these springs were later added, and the pawl mechanism/ impulse coupling is only for low cranking rpm's, so weak pawl springs was not the cause of the stall.
Yes?
So, really I need to check other factors in the magneto, like coil resistance etc.
Yes?
Anything else I can check out while it's on the bench? The pawls are really floppy, and springs are weak. Tractor ran pretty well, with an occasional miss and stutter that wouldn't respond to carburetor adjustments.
Oh yeah, client had carb off when it wouldn't start one day, and now it takes a whiff of ether to start...choking it will flood it. Float too high or too low? Plugs show tan insulator/black nose, but likely from oil burning.
C