fuel leak

[katman123]

1958 18hp Johnson, just rebuilt carb but leaks gas from butterfly when you choke it and a little when you shut motor off but not while running any ideas

 

[Daviet]

Re: fuel leak

Float level set properly?

 

[katman123]

Re: fuel leak

Float level set properly?

tried setting it level per kit instructions could the float be bad

 

[Daviet]

Re: fuel leak

Is it the old style cork float?
Did you set it even with the carb body with the carb inverted?

 

[katman123]

Re: fuel leak

not the old type float and did set it even with carb body and it was inverted

 

[Daviet]

Re: fuel leak

There could be a small piece of trash in the needle/seat holding it slightly open and allowing gas to pass by.

 

[katman123]

Re: fuel leak

no dirt in seat and I have tried several times to set float by eye with no luck can anyone give me the specks so I can check it with a gage

 

[katman123]

Re: fuel leak

Does anyone know what the guage setting should be for this float

 

[Daviet]

Re: fuel leak

Don't know if I have ever seen a guage setting for your float, always level with the carb body with the carb inverted.
Page 36, first paragraph.
http://www.fiberglassics.com/wiki/images/2/2a/Evinrudeservice001.pdf

 

[katman123]

Re: fuel leak

ok Daviet I might have found my problem tell if im wrong I have been just setting the float to level but the instructions in the link you gave me are saying the bottom of the float should be at the level of the gasket, not down in the bowl and level, is this correct

 

[Daviet]

Re: fuel leak

Look here, post #2, it is not your carb but it shows the float float and carb bowel.
Basicly you turn the carb body upside down and the top of the float, part of float facing the carb body, should be parallel(?) to the carb gasket surface.

 

[katman123]

Re: fuel leak

Ok, cross your fingers I may have my carb problems solved, I had to take 2 and make 1, the first carb I rebuilt leaked around the high speed needle Im guessing the needle was worn it had alot of play between it and the packing nut, the second carb I rebuilt leaked fuel out of the butterfly when you choke it, so I tried putting the high and low speed needles out of the second carb into the first carb and so far no leaks ( knock on wood ) LOL. Confused yet?

 

[katman123]

Re: fuel leak

oops leak not fixed, it leaks out of the butterfly when choked, the float is set right and the needle and seat are new, and I made sure float does not have a whole in it, any other suggestions