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JR North
 
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Default Mercruiser Quadraflush Carb Q

Git'n ****ed.
Fired up Cruis'n Rulz! first time this year. Ran fine for about 1 min,
then gas started coming out the float bowl vent on the Rochester
Quadraflush 4M. Rats! Float sunk, I thought. Pulled the carb top. The
float was the foam type, and felt heavy. Cool.
Pulled the carb and went through it. Replaced the float with a brass
type. Set it up, and installed. Ran good for a minute, and as before,
gas started coming out the vent. I thought MAYBE I flubbed the float
setting, so took the top off and rechecked. OK.
So...
Possibly have a bad new needle and seat, But I'm thinking more like
fuel pressure problem now. Does the Mercruiser mechanical FP have a
pressure reg built in? Do they stick sometimes?
Getting tired of pulling the carb top....
JR
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