Driving me CRAZY....

rookiex

Cadet
Joined
Jun 14, 2009
Messages
29
Alright I really need some people to bounce this off of..The primer bulb collapsing Ive been working and this and reseaching for 2 weeks or more to no fix.....

Okay here we go....On board tank

I have replaced the primer bulb 3 times,Replaced fuel lines 3/8 to a 125hp mercury motor.Inline fuel/water seperator replaced dumped out I noticed a smidge of brownish cluster of what looked to be water,Not much but it was there.I pulled out the intake screen is cleaned placed back in,Pulled out the vent hose and 90 going into the tank the anti siphion valve is clear.All kinks there are non, clamps brand new ss,Vent intake screen that is on the outside on the boat cleaned and clear.

Tank is very clean to be honest....... I need help before I lose it.Ive reseached this forum for 2 weeks or more now working at this taking the boat on time and time again with the same issue

I have noticed that on rough waters it collapses on smooth waters it does not????Is it possible that maybe im over filling my gas tank and its causing a air lock inside the tank because there is no room for air?
 
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a70eliminator

Captain
Joined
Sep 9, 2007
Messages
3,762
Re: Driving me CRAZY....

All I can say is the arrow indicates the direction of fuel flow. Is it's a portable tank than just replace it.
 

a70eliminator

Captain
Joined
Sep 9, 2007
Messages
3,762
Re: Driving me CRAZY....

All I can say is the arrow indicates the direction of fuel flow. Is it's a portable tank than just replace it. If it's a built in tank and I/O than I don't think you would need a primer bulb, the motor has a fuel pump no ?
 

cr2k

Captain
Joined
Mar 19, 2009
Messages
3,730
Re: Driving me CRAZY....

I would check the anti-siphon valve. Sometimes they get corroded and can stick. This is the little fitting right after the elbow on top of your fuel tank.
It is USCG mandated to have, but they sometimes go bad and need to be replaced.

I do have to admit the rough water/smooth water thing has me baffled.
 

mhg

Petty Officer 3rd Class
Joined
Aug 27, 2008
Messages
84
Re: Driving me CRAZY....

pull your pick up tube and remove the screen
may even cut 1/2" off tube
I had same problem
A small piece of trash in tank
if it gets sucked up the filter will catch it
My boat does not have a anti siphon valve
Mike
 
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