carbs leaking on 85 Merc 115

Dmunch

Seaman Apprentice
Joined
Jul 31, 2013
Messages
36
Carbs were leaking fuel out of the front of them, so I rebuilt them but didn't put new floats in. They still leak. Any ideas on why this is or how I can correct it?
 

Chris1956

Supreme Mariner
Joined
Mar 25, 2004
Messages
28,100
Re: carbs leaking on 85 Merc 115

Floats go bad all the time. You need to inspect yours. The foam floats disolve, the hard plastic floats crack. If they are OK, and adjusted properly, replace the inlet needle and seat.
 

Dmunch

Seaman Apprentice
Joined
Jul 31, 2013
Messages
36
Re: carbs leaking on 85 Merc 115

Is there supposed to be a gasket under the seat? When I took them apart there was not a gasket, nor did it appear the rebuilt kit had one so I reinstalled with without a gasket.
 

Chris1956

Supreme Mariner
Joined
Mar 25, 2004
Messages
28,100
Re: carbs leaking on 85 Merc 115

Some of them had the gasket, some didn't. Install the gasket and see if it makes the seat too high and the float levers will be in the wrong place. Remember when inverted the float levers should be parallel with the face of the carb bowl cover.
 
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