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Post by freezerfiller on Aug 23, 2019 20:48:00 GMT -6
another day another hundred dollars...
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gpag
Petty Officer
Posts: 211
Sea Pro model and year: 2003 220WA
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Post by gpag on Aug 26, 2019 15:38:46 GMT -6
I received and installed the new fuel gauge this afternoon. It reads the tank at 7/8 full. I haven’t checked the sender yet, I’ll do that tomorrow. When I researched how to test the fuel gauge and sender I found a how-to on Sail magazine. The instructions for testing the gauge are quoted below. When I test the gauge I am getting the opposite results. Disconnecting the Sender wire makes the gauge go to its lowest setting; when I use a wire to jump the Sender pin and ground the gauge goes to its highest reading. What is this telling me? I wouldn’t think the new gauge is bad. The circuit is providing 12 volts.
SAIL Magazine test instructions: “With power running to the gauge, disconnect the sending wire; it will be marked with an “S” at the back of the gauge. Once the wire is disconnected, the gauge should jump to its highest possible reading. If this is the case then the gauge is good and you can proceed to the next step. If the gauge does not reach its maximum reading, it is faulty and must be replaced. Another test is to jump a wire or a screwdriver across the sending pin to the ground pin on the back of the gauge. If there is no ground pin, use a longer wire and jump the sending pin to the engine block. When you do this, the gauge should go to its lowest reading. If it does, it is working properly.”
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gpag
Petty Officer
Posts: 211
Sea Pro model and year: 2003 220WA
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Post by gpag on Aug 27, 2019 14:33:26 GMT -6
To recap this long discussion: - I have a 104 gallon fuel tank - Mechanic worked on the boat and said tank was almost empty - when filling at station could only get 45 gallons in before overflow through vent and filler hole. Ran it for a while. I could only get a few additional gallons in. - blowing into vent line, gas bubbles back - installed new fuel gauge (needed it anyway) I removed the fuel sender today. This must have been done before because someone cut out a piece of the battery compartment to gain access to all the sender screws. Made it real easy to get out. The tank is 14” inches deep and there is 11-1/2” of fuel. Before measuring I lowered the bow so the deck was level, assuming that the tank would also then be level. If I knew the dimensions of the tank I could figure out how many gallons are in there but, assuming the depth of the tank is uniform, 11-1/2” of fuel works out to 80% full. The new gauge reads about 7/8ths of a tank so the measurements agree. I think my diagnosis is that the tech had his head up his ass. New question: When I metered the sender when I had it out I could not get any resistance readings. However, when I moved the sender arm to empty position the gauge read empty and when moved to full position the gauge read full. I’m going to consider thAt to mean the sender is good and chalk up the lack of readings on the sender and the reverse reAdings on the gas gauge to an issue with my almost 40 year old meter. Unless someone thinks there is a problem. New question: there was no gasket or sealant under the sender flange. Should there be? Is so, what should I use? Thanks
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Post by gnrphil on Aug 27, 2019 15:45:21 GMT -6
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tunasteak
Sailor
Posts: 25
Sea Pro model and year: 2004 220WA
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Post by tunasteak on Jul 6, 2022 5:55:53 GMT -6
I have a new to me 2004 220WA with a Johnson 175. I didn’t know the fuel capacity and eventually ran out. Thought the gauge was faulty given the age and the fact I really had not used the boat for any great distances. When I filled up I could only fit about 40gal. I’ve run it out again intentionally (carried a spare can) only to find it will only take about 40gal. PO set up a dual battery system so I have yet to pull the batteries out to inspect top of tank/sender. Also want to get a look at the label on top of the tank. When filling at the pump I have to go slow otherwise it’s quick to spit out the side.
Question to the OP if you’re still on the boards... did you ever resolve the tank capacity issue? Sounds like you were able to get the fuel gauge to read correctly but you didn’t say if it was now holding 100 gal or 40 gal.
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Post by gnrphil on Jul 6, 2022 7:37:56 GMT -6
I have a new to me 2004 220WA with a Johnson 175. I didn’t know the fuel capacity and eventually ran out. Thought the gauge was faulty given the age and the fact I really had not used the boat for any great distances. When I filled up I could only fit about 40gal. I’ve run it out again intentionally (carried a spare can) only to find it will only take about 40gal. PO set up a dual battery system so I have yet to pull the batteries out to inspect top of tank/sender. Also want to get a look at the label on top of the tank. When filling at the pump I have to go slow otherwise it’s quick to spit out the side. Question to the OP if you’re still on the boards... did you ever resolve the tank capacity issue? Sounds like you were able to get the fuel gauge to read correctly but you didn’t say if it was now holding 100 gal or 40 gal. Welcome aboard, one thing I'd check is how the boat sits on the trailer. If it sits bow down you won't be able to fill the tank properly.
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tunasteak
Sailor
Posts: 25
Sea Pro model and year: 2004 220WA
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Post by tunasteak on Jul 7, 2022 21:28:57 GMT -6
Fills to same ~40gal on trailer or in water.
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tunasteak
Sailor
Posts: 25
Sea Pro model and year: 2004 220WA
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Post by tunasteak on May 28, 2023 5:25:31 GMT -6
This season I had to replace the batteries and got into the access hole to find out tank capacity. It is 106 Gal and same as the OP. I’m only able to fill up about 40 gal. Fuel gauge reads full and I run out when it reads just under 1/4. Has anyone replaced the fuel pick up rod?
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tunasteak
Sailor
Posts: 25
Sea Pro model and year: 2004 220WA
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Post by tunasteak on Jun 1, 2023 21:01:02 GMT -6
drawing 61131.pdf (118.55 KB)Contacted RDS who made the tanks for SeaPro. They sent me the schematics and part nbrs for the sending unit and pick up tube. Pick up tube looks easiest to replace so I’ll start with that. It’s nylon hose and they said it’s possible it curled up or split thus only about to draw some gas. Another theory is a previous owner replaced the sending unit but didn’t want to cut fiberglass so they put in a shorter one. On top of the fuel tank is a blue label. Wipe it down with a rag and slide your phone/camera over to take pics of specs. Top left nbr is the drawing/cad nbr from RDS. Call them and they will send the specs/ drawing. The sender is rds # 09965 13” and the pu tube is 06621 13.75”. You can order the sender from RDS Tank Sending Unit - 13 Inch | TankAndBarrel.com You can order a pickup from them and cut it back to 13.75” with a knife the closest one is part number 010635. Fuel Pick-Up Assembly For RDS 19" Tanks | TankAndBarrel.com
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