New Gas Tank issue/problem.

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K9Kampers
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Re: New Gas Tank issue/problem.

Post by K9Kampers »

Other considerations:
Hose end connections must be tight, be it factory crimp bands or screw type hose clamps.

Fuel tank pickup height. If fuel pickup is higher than fuel level, you will effectively be out of fuel despite having -xx- amount of fuel in tank.
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SquidMan
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Re: New Gas Tank issue/problem.

Post by SquidMan »

OK,...I'm starting to loose it now :( Purchase a new Moeller (bigger) bulb. Tried it without the filter and re connected the lines direct to tank....and nothing. The bulb arrow is in the right direction > and the fittings are connected on both the BF50, and the new Moeller below deck tank. Tried to siphon gas directly when I remove the tank side of the bulb and couldn't get anything. I'm starting to think that I shouldn't have started this project as I wont be sailing this long week end in the boat parade, and my wife is upset. Going to go back to original equipment I guess with a $400.00 useless tank and all the work that went into this :(
I believe I may have exhausted all possible solutions but if anyone has a bright light,..please do let me know :)

Cheers
K9Kampers wrote:Squidman-
Image

This photo is my current setup without the filter installed. I'm using this picture to make two points.
1). The hose on the left is from the fuel tank, the hose on the right is to the motor. For my application, I plumbed my lines on the same side & plugged the holes on the opposite side of the filter head. This is the same as your "kitty corner" setup, if you have the IN & OUT holes plumbed correctly.

2). When it was suggested to "take the filter out of the loop", the intent was to configure the fuel line directly from the fuel tank to the primer bulb, thus bypassing the filter assy. Just removing the filter without reconfiguring the lines so it looks like the picture WILL NOT run the motor because the fuel path is interrupted with an air space.

The value of bypassing the filter (taking the filter out of the loop) is to restore the original configuration to when the motor ran (before adding the filter). If the motor starts & runs, then the problem is in the filter assy. If the motor doesn't run, then the problem could be any one or several things between & including the tank & motor.

The purpose of this excercise is two-fold. First is to get your motor started & running so that you can enjoy it with confidence. Second is to be able to understand how each component of a system operates and affects the system as a whole. Understanding how things work and how to diagnose a problem will help you most when you are on the water and your resources are limited.
 ! kmclemore:
Fixed quote for clairty.
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kmclemore
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Re: New Gas Tank issue/problem.

Post by kmclemore »

I don't suppose the below-decks supply hose is kinked, is it? Can you give us a picture of your below-deck tank assembly?
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Hamin' X
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Re: New Gas Tank issue/problem.

Post by Hamin' X »

My opinion is that you have an obstruction somewhere. Isolate each line and see if you can blow through it. Examples:
  • Line from tank to filter. Remove this line from filter and see if you can blow bubbles in the tank.
    Disconnect outlet line from filter. Does the squeeze bulb suck air now?
    Can you blow through the filter inlet and get air through the assembly to the outlet, with both lines removed?
You must isolate each part of the system to check for functionality. Be sure to check the engine side of the fuel line connection. Is the connector valve operating properly on the hose end and the engine side?

~Rich
K9Kampers
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Re: New Gas Tank issue/problem.

Post by K9Kampers »

In addition to doing what Rich said, have you yet run the engine on a seperate tank / line? Use the 6 or 12 gal portable tank & fuel line that you must have had before installing the new tank. Test running the engine like this will either prove it to be part of or not part of the problem. If the engine runs on the portable tank, then that can be your bright light to be in the boat parade!

To expand on what Rich has said above, disconnect the Perko vent hose (not the fill hose) at the tank. If the primer bulb expands to normal, look for a problem with the Perko vent / hose.

If bulb is still flat, do as Rich said about blowing bubbles into the tank with the tank-to-filter hose. If you can ultimately blow bubbles here, consider that there may have been an obstruction in the tank's pickup line that just got blown out. Or, the pickup line may be too long and it's opening is sitting flat on the bottom of the tank preventing fuel from drawing up into it.

Test / blow thru the filter head and fittings as said above.

With fuel line / primer bulb assy. not connected to anything, and QC fittings not installed on ends, test bulb for function. If still flat, consider a sticking check valve at the bulb. If so, maybe a forceful blow is needed to unseat it.

Try operating with the fuel bulb vertical, as opposed to horizontal.
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SquidMan
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Re: New Gas Tank issue/problem.

Post by SquidMan »

kmclemore wrote:
SquidMan wrote:Took the filter out of the loop and just left the bracket on without filter but nothing happened without the filter. The below deck Moeller tank is about 1/4 full,..connection at the tank is OK.
OK, so if I am reading you correctly, you have the hose from the engine to the bulb, then from the bulb to the tank (directly). Correct?

PROBEM SOLVED :) It was the direcect connect to the tank that was the problem. Replaced it,..put new Moeller bulb on line,...but had to siphon the tank side to get things going. Ended up with a mouthfull of gas. Had to get rid of the gas after taste so I washed it down with some fine Canadian beer :)
Thanks to all who have helped me witht his problem :) I'll be sailing this week end after all!!
K9Kampers
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Re: New Gas Tank issue/problem.

Post by K9Kampers »

PROBEM SOLVED :) It was the direcect connect to the tank that was the problem. Replaced it,..put new Moeller bulb on line,...
I'm interested in hearing what you found to be wrong with it!
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