Fuel pump problems 4 cyl. 140 mercruiser

[deck hand]

Ok guys I hope someone can help me out? Just bought this boat ran it on the lake for 20 min and it quit! got it home and went through the 3 main things. Has good spark, compression and WAS getting gas to the carb! Well the gas that was in it was full of crap so I cleaned the whole system out of the old gas cleaned and rebuilt carb, found the float had gas in it. Ok so i even pulled the fuel pump off and cleaned it. Its all back together now and I can not get the pump to feed the carb gas now! Is there a trick to this? Do I have to prime the pump? Please HELP me I want to get this boat on the lake.

Thanks, Deck hand

 

[Bondo]

Re: Fuel pump problems 4 cyl. 140 mercruiser

Ok guys I hope someone can help me out? Just bought this boat ran it on the lake for 20 min and it quit! got it home and went through the 3 main things. Has good spark, compression and WAS getting gas to the carb! Well the gas that was in it was full of crap so I cleaned the whole system out of the old gas cleaned and rebuilt carb, found the float had gas in it. Ok so i even pulled the fuel pump off and cleaned it. Its all back together now and I can not get the pump to feed the carb gas now! Is there a trick to this? Do I have to prime the pump? Please HELP me I want to get this boat on the lake.

Thanks, Deck hand

Ayuh,.... Welcome Aboard,... I would Guess you have 1 of 2 problems,....

Either the Tank isn't givin' up the fuel, to the fuel pump,...
Or,... Ya put the check valves in the pump, in backwards...

 

[mpdive]

Re: Fuel pump problems 4 cyl. 140 mercruiser

What year boat?

 

[deck hand]

Re: Fuel pump problems 4 cyl. 140 mercruiser

Thanks that is definately something I will look at!

 

[deck hand]

Re: Fuel pump problems 4 cyl. 140 mercruiser

This is a 1976 starcraft ss.

 

[fat fanny]

Re: Fuel pump problems 4 cyl. 140 mercruiser

Dirt in the pick up tube screen in the tank, cloggeed vent.