I am working on getting an old QD 16 10 horse back in working condition and was wondering about the tiller handle being hard to twist. I have gone thru and cleaned and lubed all the shafts and linkage and when I put the handle back on without the spring in it turns very easy but when I put the spring in the handle it seems to me like it turns very hard. I have tried different lubes on the end of the tiller handle wear the spring presses against it without any luck. Any help or suggestions would be appriciated. Thanks