Hi,
I am in the process of fitting my new open ocean
engine driven
water maker and I am at the stage of determining what size pulley to fit on the
engine. This is determined by what rev range I want to have the engine at when making
water i.e. when I am motoring or if anchored up at idle. The obvious issue for gearing up the system to run when the engine is at idle is the engine pulley needs to be huge to be the correct ratio to the 7'
pump pulley.
The
pump needs to run at between 1320 and 1750rpm and the engine idles at 700
rpm and motors on ave at 2000rpm so where do I
pitch it i.e. closer to idle speed as practical or motoring speed?
In peoples experience when
offshore and coastal cruising when do you make
water.
I already know about the pulley calculators so its just what engine rpms do I decide on?
Thanks Anthony