Tower of power fuel problem

Joined
May 10, 2020
Messages
5
I recently got a late 70s mercury 1150. Rewired it, rebuilt carbs, fuel pumps and ran all new fuel lines. I cam prime fuel just fine, however, once started it basically cleans the bowls and dies. Then needs primed again. Engine seems to be doing great other than the fuel issue. Has anyone else had this problem?
 
Joined
May 10, 2020
Messages
5
Yea itll continue to run if someone manually primes. I dont have the compression numbers atm. Hopefully get those tested in a few days
 

racerone

Supreme Mariner
Joined
Dec 28, 2013
Messages
36,033
The fuel pump is driven by crankcase PRESSURE so maybe there is an issue there.----Your rebuilt pump cannot work if there is no pressure.
 

jimmbo

Supreme Mariner
Joined
May 24, 2004
Messages
12,944
More than one Fuel Pump? If so, it is older than mid 70s
 
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