I recently used SBT’s supercharger rebuild kit on an RXP. First, thanks for getting a cost effective option. Here are some observations on my first experience. Hopefully, it will help others.
1) Although the piece parts are numbered they aren’t named so I couldn’t tell which one was the end nut washer (#17) and had to call for help. It would help if you referenced the part package numbers in your installation instructions or alternatively put descriptions instead of numbers.
2) After torquing the end nut, the impeller still spun (slipped) on the stationary shaft (I’m not referring to the expected slip from the ceramic washers). I had to add a second washer to before the impeller locked to the shaft. My original washer was significantly thicker.
3) The special wrench would not hold the lock nut while the disassembling the shaft. The ends bent outward. I happen to have an thin radial saw wrench that was slightly bigger so I epoxied them together to stiffen up the wrench. It looks like it needs another .050 of thickness to handle the additional torque needed during disassembly.
4) Getting access to a machine shop and press is problem where I live. I was able to use a wide pipe clamp and vice to press in the parts using the supplied pusher. The interference fit doesn’t require anything like a one ton press. I've used the same setup in the past in replacing the primary oil pump.
5) I was curious why the three washers needed to added between the PTO and SC housing. I’m sure there is some clearance reason but it seemed a bit odd leaving a gap there. Hopefully the two O rings will keep water out.
1) Although the piece parts are numbered they aren’t named so I couldn’t tell which one was the end nut washer (#17) and had to call for help. It would help if you referenced the part package numbers in your installation instructions or alternatively put descriptions instead of numbers.
2) After torquing the end nut, the impeller still spun (slipped) on the stationary shaft (I’m not referring to the expected slip from the ceramic washers). I had to add a second washer to before the impeller locked to the shaft. My original washer was significantly thicker.
3) The special wrench would not hold the lock nut while the disassembling the shaft. The ends bent outward. I happen to have an thin radial saw wrench that was slightly bigger so I epoxied them together to stiffen up the wrench. It looks like it needs another .050 of thickness to handle the additional torque needed during disassembly.
4) Getting access to a machine shop and press is problem where I live. I was able to use a wide pipe clamp and vice to press in the parts using the supplied pusher. The interference fit doesn’t require anything like a one ton press. I've used the same setup in the past in replacing the primary oil pump.
5) I was curious why the three washers needed to added between the PTO and SC housing. I’m sure there is some clearance reason but it seemed a bit odd leaving a gap there. Hopefully the two O rings will keep water out.
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