Re: [Amel] Diesel control

Maria Geiger

Dear Kent,

The truth is that we are so lucky having Bill knowing so well our boats and in top of that answering  at that speed and so clear!!!

That you again :)

Le 14 oct. 2013 à 20:52, Kent Robertson <karkauai@...> a écrit :


See, Pitu, if you ask a guy who knows his stuff, you get an answer like Bill's.  If you ask a guy like me who has trouble tying his shoes, you get an answer like mine.

From: Bill & Judy Rouse <yahoogroups@...>
To: amelyachtowners@...
Sent: Monday, October 14, 2013 10:42 AM
Subject: Re: [Amel] Diesel control

The Electric Fuel Gauge is a 12 Volt DC gauge with a spring toggle switch that is normally OFF. Move the switch to ON and the fuel gauge is ON.

There are 2 inspection ports on top of the stainless steel fuel tank in the engine room. The fuel gauge sending unit is installed on the forward inspection port. There are two wires going to the sending unit from the fuel switch/gauge. Do the following tests:

In the engine room:
  1. Near the top of the fuel tank, the two wires from the switch/gauge are spliced to the two wires from the fuel tank sending unit with insulated Male/Female Spade Connectors. Pull these connectors apart.
  2. Using  a voltmeter on the two wires which are coming from the switch/gauge measure the voltage with the "fuel check switch" near the gauge in the OFF should read 0. 
  3. Next measure the volts on the same wires with the switch should read about 12 Volts DC. 
  4. If this checks out, everything is good except possibly the stem and float part of the measuring system...but 1 more test:
  5. Reconnect the two wires, except leave the plastic insulator pulled back to allow for Voltmeter probe contact.
  6. Using  a voltmeter on the Spade Connectors, measure the voltage with the "fuel check switch" near the gauge in the ON position. 
  7. If the tank is full it should read 12 volts...if it is half full 6 volts, it it is 1/4 full 3 volts.
If all of above checks out, the problem is with the float and stem...and could be something simple like the float is stuck.
  1. Disconnect the insulated Male/Female Spade Connectors.
  2. Remove the 8 bolts on the inspection hatch on the fuel tank.
  3. Take care that the rubber gasket does not fall into the tank
  4. You will have to slightly rotate the plate as you pull up exposing the approximately 1 meter stem and float.
  5. If your problem is visual, possibly you can repair.
  6. If it is not visual, you will need to take the stem and float to a shop that specializes in fuel tanks.
Hope this helps.

On Mon, Oct 14, 2013 at 1:37 PM, <pitugolf@...> wrote:
Deal all,
The original counter of diesel of my SM stopped working and shows empty tank however it&apos;s almost full does someone have the same problem? How can be repaire?

Thank you in advance from Leros,


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