T&T: Fw: Fw: running twins

[Larry N. Brown]

<snip>

 We had Borg Warner Velvet
> Drives. There is a factory bulletin explaining that low speed freewheeling
> is fine. Every boat is different and some people have reported no fuel
> savings or real problems with steering, etc. I do know of one boat that 
> got
> seawater in the engines due to a scoop on the thru hull and lift mufflers
> that could fill up and backflow.It is very important to keep the rpm down
> because, with only one engine running, you are very over propped and can
> overload and damage the engine. But if your boat is somewhat overpowered 
> at
> trawler speeds it can also be damaging to run many hours with both engines
> lightly loaded. Better to run one engine at a bit heavier load. And you
> accumulate just over half as many engine hours.
>
> Jim Fidler "Fiddlesticks"

Excellent point. To specifics. My engines are Yanmar 4LHA-STP's with-- what 
I remember-- are Hurst reduction gears. Both engines rotate the same 
direction and one gear's operated in forward, the other in reverse.

Does anyone know about freewheeling this engine?

Regards,

Larry and Teri
M/V Cigano, 47' Prairie Sundeck Cruiser
Lying: 64 Cypress Road
          Covington, LA