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Old 11-25-2015, 04:55 AM
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dsmcraze
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Default HPI RS4 Transmission clutch.

I have discovered over some searching that it is fairly common having a difficult time getting these things to shift into 2nd gear. I am relatively new to the rc world let alone nitro but I've gone through 2 motors with this car and have learned a lot in the meantime. I am quite familiar with this chassis now and quite the mechanically inclined individual. Having said that I am completely stumped on this issue. perhaps it's a common seldom known issue getting these to shift. I have disassembled the transmission for the 10th time trying to figure out where the issue is. I have tried a multitude of things. All the basics are covered. The set screw for the clutch is tight on the shaft. 2 full turns out with the silver spring on the clutch adjustment screw. I have tried severial adjustments. The clutch shoe pivots freely with slight resistance. Motor is tuned and broken in correctly it rips from a dead stop and screams to high revs with no shifting. I have attached some images of the transmission clutch and bell. I am very confused. Am I missing a part? Can these simply just wear out?
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