Originally Posted by Steve B
The 2 CP19 motors I have both got a washer (shim) above the rubber O ring.
Are u running the standard brushes to get the com like that after 5 runs, if so use the LONGLIFE INFINITY BRUSH they are well worth the extra. Last for ages and a lot less ware on the com.
Yes they were the standard set, I bought the infinity/silver spring combo on the recommendation of a few racers I wanted to check the comm before putting them in.