2006 60 EFI Dripping Fuel Out Of Overflow From VST

[Guest]

I have a 2006 60 EFI 4 stroke bigfoot. It starts and runs like new, but when I shut the motor off it drips fuel out of the overflow from the vapor separator tank until pressure is off the system. From diagrams I have looked at this is probably due to a float sticking or maybe some debris in the VRT. How easy is this to clean out or should I take it to a dealer? I think a replacement VST is about $700. What might a dealer charge to clean this out or would they more than likely just change it out?

 

[alldodge]

I have a 2006 60 EFI 4 stroke bigfoot. It starts and runs like new, but when I shut the motor off it drips fuel out of the overflow from the vapor separator tank until pressure is off the system. From diagrams I have looked at this is probably due to a float sticking or maybe some debris in the VRT. How easy is this to clean out or should I take it to a dealer? I think a replacement VST is about $700. What might a dealer charge to clean this out or would they more than likely just change it out?

Howdy

Never messed with one on an outboard but had a VST on my Cruiser. It is pretty simple to take the top off and replace the needle seal and valve. More then likely its just a bit dirty. Would need a float valve kit which I believe comes with the top gasket. Here is the manual
http://boatinfo.no/lib/mercury/manuals/40-50-60_02.html#/210

Now if I knew the serial number I could probably find the parts needed.

 

[Guest]

My model # is 1A60452FD, Serial # 1B294715.

Thank you.

Rick

 

[alldodge]

The float valve kit is 892267A52 and doesn't appear to come with the new O-ring
The O-ring is 892267530
Here is the parts list link at iboats
http://www.iboats.com/Vapor-Separat...481917--session_id.003627760--view_id.1697053

 

[Guest]

Thanks AllDodge for the help. Parts ordered from iboats.

 

[Guest]

Another question. This is on a pontoon that stays in the water all year about 90 miles from my home. Can this repair be done with the boat in the water or would it be better/easier to pull the boat? If the boat is on the trailer can this be accomplished by just popping the top off of the assembly or should it be removed from the motor?

 

[alldodge]

Well as before I'm not an out board guy, but if I was going to do it I would disconnect everything and remove the VST pump. Then take it to a bench/table/other work area and do the tear down and replacement. I've seen the VST's on outboards and they appears to be easy enough to remove and replace, only issue would be if you drop something.

 

[Guest]

Well as before I'm not an out board guy, but if I was going to do it I would disconnect everything and remove the VST pump. Then take it to a bench/table/other work area and do the tear down and replacement. I've seen the VST's on outboards and they appears to be easy enough to remove and replace, only issue would be if you drop something.

Will pull the boat and remove the VST while on the trailer and take it to a bench to work on. Bouncing waves, old eyes and fat fingers are not a good combo. I wish I had every tool back that I have dropped in the water over tha past 40 years.

 

[alldodge]

I wish I had every tool back that I have dropped in the water over tha past 40 years.

Me to, I could start my own tool store :facepalm:

But I like punishment, sometimes, lets go for it, it will work this time

 

[RaduAndrei]

This is a quite common problem with some Mercury series. It is caused by an unhappy combination between the insulator of the fuel pump (Number 14) and the float (Number 32). Some floats are about 0.5 millimeter higher than normal, same as some insulators (anyway, the insulator will become larger over time due to the chemical reaction with the fuel). Therefore, in some positions, the float will be blocked in its way to close the fuel circuit and the fuel level will increase too much. Therefore, changing the needle valve will not solve the problem.

This is what you have to do: after you install the fuel pump in the insulator, try to cut a little rubber piece (1-2 mm) from the insulator on the side of the float. This will solve the problem and the float will not be blocked to close to circuit. Be sure you remove that small rubber piece from your VST before you close the VST.