1999 Rinker 330 Fiesta Vee - (VIDEO)Port side Fuel Gauge erratic

viper3881viper3881 Posts: 16 ✭
edited July 2016 in Rinker Express Cruisers Forum
Second post to the forums. Forgot I had another question on our boat. Here is a video of my PORT side fuel gauge. It read fine at about 1/2 tank. Took it to fill up both sides 100 gallons each side. After starting and driving away from the gas dock everything read full tanks. 

Then we get out on the water and after about 15 minutes of trolling/cruising it starts doing the following.

https://youtu.be/MBtDCkxePI0

**BY THE WAY THE VIDEO WAS SHOT WITH THE ENGINES RUNNING BUT JUST FLOATING IN THE WATER FOR A GOOD 10 MINUTES**

Everything I have read says it can be a bad sending unit, or poor connection. Its been fine all year and only started doing this after topping off the tank. If its the sending unit anyone have a part number for a 1999 Rinker Fiesta Vee?

Thanks for the help in advance! 
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Comments

  • StodgeStodge Posts: 2,738 ✭✭✭✭
    Greatlakesskipper.com is a good source for Rinker parts.  But I'd check for a bad ground someplace first.  That is the cause of weird gauge readings quite often.

    2002 FV 342 on Lake St. Clair - Past Commodore SHC - Vessel Examiner USCGAUX

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  • viper3881viper3881 Posts: 16 ✭
    Thanks I will have them take a look at the ground! Appreciate it
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  • viper3881viper3881 Posts: 16 ✭
    I will add that it was fine many days at half tank once full it started doing this. Only thing I can think of the ground on the sending unit is getting wet and corrupted by it. 
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  • planesailingplanesailing Posts: 173 ✭✭
    I had a similar problem with mine. I cleaned the contacts on top of the sending unit and it has worked fine ever since. Really quick and easy job to do!
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  • viper3881viper3881 Posts: 16 ✭
    Nice just a dumb question planesailing....The contacts are the ones that slip into the top of the gas tank right? Are they connected to the top of the sending unit?
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  • planesailingplanesailing Posts: 173 ✭✭
    Yes that's right they are connected to the top of the sending unit on the top of the tank! I cleaned both the contacts on the unit itself And the connecting wires and made sure they were tightly connected together. Been fine ever since! Only took 5 mins to do! Sometimes it's the simplest of things that cause the problems! Hope you get it sorted!
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  • viper3881viper3881 Posts: 16 ✭
    I will be reporting back once I get back out to the boat tomorrow!
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  • viper3881viper3881 Posts: 16 ✭
    Helped a little with contact cleaner and a brush but not much. Its just really harder to get in contact area with my limited space. 
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  • viper3881viper3881 Posts: 16 ✭
    How do you even access the sending unit on the 330's? Looks like I have no access anywhere!
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