2000 Conquest 280 Fuel Tank Level Sender - Moderated Discussion Areas

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Author Topic:   2000 Conquest 280 Fuel Tank Level Sender

Green Flash posted 08-07-2015 01:20 AM ET (US)
Hello everyone, the fuel tank level gauges [of a 2000 Boston Whaler CONQUEST 280 have been] continuously [unreliable]. I think I need to replace the fuel senders on both tanks. Is there an OEM replacement? If so, what is the model number and where could I find one.
Is there a better aftermarket model I should buy and why? Any preferred vendors?
I have Mercury VDO gauges. Thanks in advance for your help with this.
jimh posted 08-07-2015 10:07 AM ET (US)

quote:
Is there an OEM replacement?
I don't know who was the OEM for the electrical fuel tank level sender on your Boston Whaler CONQUEST 280 model year 2000. Chuck Bennett at Boston Whaler customer service can probably tell you that information. If the senders have always been unreliable, perhaps you don't want to replace them with the same ones you have now.

quote:
Is there a better aftermarket model I should buy and why?
If your fuel tank has the common five-hole bolt pattern and uses an standard resistance electrical sender, there are many options for a replacement sender. Options for replacement fuel tank level senders that are electrically operated are discussed in a thread in SMALL BOAT ELECTRICAL. Please see
FUEL TANK LEVEL SENDER: ELECTRICAL
http://continuouswave.com/ubb/Forum6/HTML/000632.html
The devices mentioned are not "after-market" devices. They are probably all better devices than the original and are used today by many boat builders.

quote:
Any preferred vendors?
Because most of the electrical fuel tank senders are made to a custom length, they seem to be ordered directly from the manufacturers.

quote:
Is this a relatively easy remove and install procedure?
The five-hole bolt pattern is usually a standard pattern. A replacement fuel tank level sender should fit into the original tank opening and have a hole pattern that matches the existing holes. The electrical connections of a new sender should be easily adapted to the existing wiring.
A new sender will have to be ordered to fit the tank's depth. In general, you won't be making any modification to the boat. The new sender should drop in and fit. See the article in SMALL BOAT ELECTRICAL for more information on the senders. If you want to continue to use the existing electrical meters for the fuel tank gauges, you MUST get a replacment sender that is designed for the same resistance range as the original. There is a very common standard resistance range used, but you must check your existing sender to see what resistance range it employs. Gauges made by VDO may be designed to use a resistance in the sender that is more common to Europe than to the USA.
jimh posted 08-07-2015 10:43 AM ET (US)
Another option for a modern fuel tank level sender is to use a NMEA-2000 network sender. This option is discussed in the REFERENCE section. Please see
NMEA-2000 Instrumentation: Fluid Tank Level Monitoring
http://continuouswave.com/whaler/reference/fluidTankLevelNMEA2000.html
Green Flash posted 08-10-2015 02:55 AM ET (US)
Hi Jim,
As always, thank you very much for the very informed response. I will confirm the mounting pattern next time I'm down at the boat and begin calling the contacts you've provided. I'll report back what I find and how the installation goes.
Thanks again!
Justin

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Author	Topic: 2000 Conquest 280 Fuel Tank Level Sender
Green Flash	posted 08-07-2015 01:20 AM ET (US) Hello everyone, the fuel tank level gauges [of a 2000 Boston Whaler CONQUEST 280 have been] continuously [unreliable]. I think I need to replace the fuel senders on both tanks. Is there an OEM replacement? If so, what is the model number and where could I find one. Is there a better aftermarket model I should buy and why? Any preferred vendors? I have Mercury VDO gauges. Thanks in advance for your help with this.
jimh	posted 08-07-2015 10:07 AM ET (US) quote: Is there an OEM replacement? I don't know who was the OEM for the electrical fuel tank level sender on your Boston Whaler CONQUEST 280 model year 2000. Chuck Bennett at Boston Whaler customer service can probably tell you that information. If the senders have always been unreliable, perhaps you don't want to replace them with the same ones you have now. quote: Is there a better aftermarket model I should buy and why? If your fuel tank has the common five-hole bolt pattern and uses an standard resistance electrical sender, there are many options for a replacement sender. Options for replacement fuel tank level senders that are electrically operated are discussed in a thread in SMALL BOAT ELECTRICAL. Please see FUEL TANK LEVEL SENDER: ELECTRICAL http://continuouswave.com/ubb/Forum6/HTML/000632.html The devices mentioned are not "after-market" devices. They are probably all better devices than the original and are used today by many boat builders. quote: Any preferred vendors? Because most of the electrical fuel tank senders are made to a custom length, they seem to be ordered directly from the manufacturers. quote: Is this a relatively easy remove and install procedure? The five-hole bolt pattern is usually a standard pattern. A replacement fuel tank level sender should fit into the original tank opening and have a hole pattern that matches the existing holes. The electrical connections of a new sender should be easily adapted to the existing wiring. A new sender will have to be ordered to fit the tank's depth. In general, you won't be making any modification to the boat. The new sender should drop in and fit. See the article in SMALL BOAT ELECTRICAL for more information on the senders. If you want to continue to use the existing electrical meters for the fuel tank gauges, you MUST get a replacment sender that is designed for the same resistance range as the original. There is a very common standard resistance range used, but you must check your existing sender to see what resistance range it employs. Gauges made by VDO may be designed to use a resistance in the sender that is more common to Europe than to the USA.
jimh	posted 08-07-2015 10:43 AM ET (US) Another option for a modern fuel tank level sender is to use a NMEA-2000 network sender. This option is discussed in the REFERENCE section. Please see NMEA-2000 Instrumentation: Fluid Tank Level Monitoring http://continuouswave.com/whaler/reference/fluidTankLevelNMEA2000.html
Green Flash	posted 08-10-2015 02:55 AM ET (US) Hi Jim, As always, thank you very much for the very informed response. I will confirm the mounting pattern next time I'm down at the boat and begin calling the contacts you've provided. I'll report back what I find and how the installation goes. Thanks again! Justin