Steve,

Isolating the Yanmar has been a hair-pulling experience...as much because isolated sensors are difficult to match.  Ask Yanmar if the sensors are the same for the 80HP and 110HP.  If not, look on the sides of the hex nut that is used to tighten the sensors and get the numbers stamped there.  That may be the only way to determine the specs of the sensors, because Yanmar will not give you that information.  

You'll need senders for the gauges, too.  Find the make and model of the gauge and contact them about isolated ground senders.

I will send you a schematic that Amel sent to me about how to isolate your engine.  It's in French, but

On Jun 26, 2015, at 12:34 PM, Steve Davis flyboyscd@... [amelyachtowners] <amelyachtowners@...> wrote:

 

Hey Richard,

We are about to order the new Yanmar for Aloha, and are finding Yanmar USA not helpful regarding the isolation issues. For example, they will not provide isolated ground alternators without a 4 month lead time. The alternators are not a problem, as I can provide my own, but they also seem unable to provide isolated sensors and such. I guess my question is where does one get all the required components to isolate the engine, if the engine manufacturer can't provide them?

On another note, a very nice dual alternator pulley and bracket kit can be provided by Electromax in Ontario, Canada for $560.00. The kit will fit the 80hp Yanmar which we are buying, or the 110hp which shares the same block. I previously purchase an alternator and watermaker from Electromax, and have found them to be great people to work with. 

Regarding Kent's CDrive issues, I have to wonder how much of the problem was a result of the lack of isolation of the engine since that has been corrected, and he seems to still have issues with the prop zinc disappearing. Some of the problems seem incredibly difficult to track down. 

Congratulations on a successful delivery across the pond, and welcome back. 

Regards,

Steve and Liz Davis

Aloha SM72

Hauled in St Augustine, Fl

On Jun 26, 2015, at 11:19, Richard03801 richard03801@... [amelyachtowners] <amelyachtowners@...> wrote:

 

Take a look at posts Kent has on this site. Not isolating the engine will over a very short time cause a issues with the Amel drive and engine. The old saying an once of prevention.    

Fair Winds Smooth Sailing To All

Capt Richard 

RP Yacht Brokerage

Newport RI 

We list sell and service fine yachts including Amel's

Cell 603 767 5330

On Jun 26, 2015, at 07:51, alex.paquin@... [amelyachtowners] <amelyachtowners@...> wrote:

 

So what would be the consequences on not isolating the engine ´s negative on all electrical sensors, actuators and alternators?

Alex Paquin

Simpatico Hull 94

Older Maramu 1981