fuel capacity key largo 176

[laddiemac1]

can someone tell me the fuel tank capacity of a key largo 176?

 

[Another retired guy]

Re: fuel capacity key largo 176

can someone tell me the fuel tank capacity of a key largo 176?

Hi & welcome. Answer easily found with a google search - 35 gallons!

Note that's for a 2010 model - may be different in other years?

 

[JoLin]

Re: fuel capacity key largo 176

There should be an inspection plate, in the deck, directly over the fuel gauge sending unit. The tank will have a tag on it in that location. It'll tell you manufacturer, date of manufacture and capacity.

(Four Winns says my boat holds 110 gallons. The tank manufacturer says it's 109. I think I have grounds for a false advertising lawsuit...)

My .02

 

[04fxdwgi]

Re: fuel capacity key largo 176

There should be an inspection plate, in the deck, directly over the fuel gauge sending unit. The tank will have a tag on it in that location. It'll tell you manufacturer, date of manufacture and capacity.

(Four Winns says my boat holds 110 gallons. The tank manufacturer says it's 109. I think I have grounds for a false advertising lawsuit...)

My .02

That's funny..... Four Winns may be including fuel capacity in the fuel fill hose too, so you don't have a leg to stand on in court..

 

[laddiemac1]

Re: fuel capacity key largo 176

can someone tell me the fuel tank capacity of a key largo 176?

I should hv included the year... 2004 with fuel tank under the deck...apparently the newer models hv the tank under the center console...I will check the cover over the tank to see if there's any label one etching.... Thanks all...

 

[JoLin]

Re: fuel capacity key largo 176

That's funny..... Four Winns may be including fuel capacity in the fuel fill hose too, so you don't have a leg to stand on in court..

I just need to hire the right law firm. 'My client, his family, and everyone he's ever known, suffered immeasurable anxiety and mental distress when his boat ran out of fuel 100 yards from a safe harbor... due to the unconscionable advertising of the manufacturer, the corporation, and the workers who dared mount an undersized fuel tank in the boat.'

(that does it- I'm going to ambulance chaseer law school)

 

[laddiemac1]

Re: fuel capacity key largo 176

can someone tell me the fuel tank capacity of a key largo 176?

found label near fuel tank hoses.....its 35 gal....now i hve to figure out why the gauge was at e and it only took 15.4 gallons of fuel and the gauge was near full.....any ideas? one time the return line had gas in it and it wouldnt take very much gas...maybe a new fuel sending unit would be in order......wonder where i could get one......

 

[JoLin]

Re: fuel capacity key largo 176

Is this a new problem?

Easiest first step would be to pull the fuel sender. Measure the depth of the tank and compare it to the length of the sender's float arm when it's extended. Could be as simple as the arm being too short (or adjusted too short) for the tank.

Beyond that you'll need a DVOM to check resistance readings at the sender and gauge to zero in on which one is faulty. When you have the sender out confirm the manufacturer. You'll need to look up the specified resistance (ohms) when the sender's extended, half extended and fully 'up'. There are a couple of different manufacturer standards, so you need to look it up.

Also make sure that the gauge and sender are compatible.

 

[04fxdwgi]

Re: fuel capacity key largo 176

found label near fuel tank hoses.....its 35 gal....now i hve to figure out why the gauge was at e and it only took 15.4 gallons of fuel and the gauge was near full.....any ideas? one time the return line had gas in it and it wouldnt take very much gas...maybe a new fuel sending unit would be in order......wonder where i could get one......

In that case, it sounds like sender / gauge, problem / adjustment / replacement. Most fuel gauges are decent at full and empy, if adjusted correctly. Anything in between is a crap shoot.

Saw one boat that would only take 1/2 of what tank could hold. Gas kept splashing back during fill up and owner thought tank was full. Found vent wasn't working. Cleaned the vent fitting of mud dobber nest and once the the vent was clear, then the owner complained about how much it now cost to fill the tank.

Face plant now in order. :facepalm:

 

[laddiemac1]

Re: fuel capacity key largo 176

pullled off vent line and gas came spewing out....its full to the tippity top and there was fuel in the vent hose when i blew it out.....should you be able to completely fill the tank to where its overflowing into vent hose? I will check the fuel level arm today and see if its adjusted properly....west marine has them for about $50 if I need one.....universal fit with 5 screws and gasket..I will make sure its compatable with guage as far as resistance is concerned....I do recall trying to add more gas when I was filling it up because I didnt think 15 gallons was going to fill it.....and it did come spewing out the top of filler .....so I probably overfilled it......Need to get gauge working so this doesnt happen again....kabish?

 

[Another retired guy]

Re: fuel capacity key largo 176

There's something wrong with your vent system. There should not be any gas in it. The vent should be located at a higher point on the hull than the filler, and there should not be any dips ( low points) in the line between the tank and the vent fitting. The line can loop UP but not down.

 

[laddiemac1]

Re: fuel capacity key largo 176

There's something wrong with your vent system. There should not be any gas in it. The vent should be located at a higher point on the hull than the filler, and there should not be any dips ( low points) in the line between the tank and the vent fitting. The line can loop UP but not down.

I will check the hose , but I think I overfilled it and the gas overflowed into vent line? Don't know for sure....anyway, I took out the mueller reed switch sending unit...out of the tank , the gauge reads e when float is at bottom and full when up at top...but when it's in the tank, it reads about 3/4 full on guage...I'm thinking the resistance must hv changed ... I can't find a new mueller 6" reed switch sending unit anywhere...the tank is 7" and they say it needs 1" from bottom of tank...I will ck the resistance on the unit at top and bottom....I think it should be 33-240 ohms...can anyone point me to a 6" moeller 6" reed sending unit? Ps...I syphomed a good 4 gal from tank and its still just 1" from where sending unit is...it's full all right!

 

[Another retired guy]

Re: fuel capacity key largo 176

If gas was flowing back out of the filler opening then yes, the tank was full and gas would be in the vent line. After you drained some gas from the tank the vent line should have drained back into the tank.
If no gas flowed back out of the filler, then the tank was not full and the vent line should not have had gas in it.

 

[laddiemac1]

Re: fuel capacity key largo 176

I had blown out the vent hose before emptying some of the gas out, so don't know if it would have gone back in tank...but if vent hose is somehow lower than top of tank it wouldn't go back to tank.... I definitely will ck on vent hose to make sure it is properly routed... Thanks for the info!

 

[laddiemac1]

Re: fuel capacity key largo 176

Vent hose seems fine with the way it's routed....goes right alongside filler hose and is clamped to it halfway there...I'm thinking the only alternative for guage problem is a new sending unit!

 

[Another retired guy]

Re: fuel capacity key largo 176

Ok so no vent problem You didn't answer JoLin's question - is this a new problem? Is this a "new to you" boat that came with the problem? Or, was it working ok before and has just gone wrong??

 

[Another retired guy]

Re: fuel capacity key largo 176

Found this old thread. It may help you trace the fault

fuel gauge or sending unit? - 2CoolFishing

 

[laddiemac1]

Re: fuel capacity key largo 176

Bought boat in 2008. Don't use it very much...maybe 4-5times a year...I remember a few years ago the guage was reding 3/4, so I wanted to top it off and only put a few gallons in it before it came to top of fill pipe...of course after getting in the water,motor would die at anything but idle or so....died when pushing throttle up....had to get towed back after battery went dead from trying to start it...had tank pumped out due to ethanol scare, then with empty tank, it wouldn't take any fuel...that's when I found that the vent hose was full of gas! The overfill was the whole problem but what do I know.....first power boat....don't tell anyone I was in the navy...they wouldn't believe you..of course there wasn't any boats up in CIC....my father was a seaman 1st class on the Pennsylvania, but he's dead now and would hv had a good laugh about it....I did find a 6" sending unit online and hv it coming in...stay tuned

 

[Another retired guy]

Re: fuel capacity key largo 176

Ok, good luck - but you just re-opened the vent line issue
You said that after draining the tank it wouldn't accept fuel because the vent line had gas in it! With an empty tank the vent line should have drained. Are you absolutely sure that there isn't still a problem with that line??

 

[laddiemac1]

Re: fuel capacity key largo 176

Hmmmm....you're right....I will recheck it....something seems amiss, I agree...