2006 Honda BF150 Fuel leak from Fuel pump cover on Vapor Separator

[HonDan]

I am helping a guy with a his 2006 BF150 with only 250hrs and see fuel leaking from the fuel pump cover on the vapor separator. The leak is not a pressurized stream like from a water pick, but dribbling out from fuel pump even when the key is turned off most notable when engine tilted up and fuel leaking down into transom. I've never seen this issue before. Hoping it is just the big oring under the cover has gone bad. Anyone else seen this?

 

[TritonFisher]

I’ve never seen it with mine on the VST, but it has happened with my filter covers (they were finicky until I replaced the whole setup). Where is the leak specifically? https://www.boats.net/catalog/honda...j-1300001-to-banj-1399999/fuel-pump-fuel-hose

 

[HonDan]

Leak looks like it is coming out from under the pump cover #29 and the fuel pump case #27 so I'm replacing the oring #14 between the two of them, local dealer had one in stock. I will update post with findings.

 

[jgmo]

Are you thinking item 16?

Honda Outboard 150HP OEM Parts Diagram for Vapor Separator Assy. | Boats.net

Buy OEM Parts for Honda Outboard 150HP Vapor Separator Assy. Diagram

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I don't know exactly where item 7, drain screw is located but any possibility there? It has an oring to go bad or it could have vibrated loose.

Just guessing at stuff....as usual.

 

[HonDan]

I removed fuel pump case from VST and unscrewed pump cover lid and swapped out the oring #14. Old O ring stayed flat did not spring back at all. Put it all back together, squeezed primer no leaks, energized pump no leaks, ran engine for couple minutes, shut down engine and tilted up (this is were it was leaking before new o ring installed) still no leaks. Covers back on ready to sea trial.

 

[jgmo]

Nice goin' HonDan!

 

[mgssrs]

Always good when you get it together and it works.

 

[jgmo]

Well, I might be the Champ-een of the other way 'round. ;~)

I think my stage name might be Leaks Galore!