Re: New Autohelm ST4000 verses old ST4000
The issue that addresses your question is that the motors are pretty much the same size on both units. Complicated by the belt issue. Get replacement belts and learn how to service
the hub and all its parts.
Catalina 34 #224 (1986) C34IA Secretary
Cowichan Bay, BC, (Maple Bay Marina) SR/FK, M25, Rocna 10 (22#) (NZ model)