Mercruiser 3.0 replaced fuel pump

[bri1993mcknight]

Hello all! Any help is appreciated. Bought a 1987 Wellcraft for $800. No fuel was getting to the carb so I replaced the pump. Now, fuel is still not getting to the carb. Mine is the pump with the bowl on top. Right now I'm charging my battery to full so that I can get a longer crank try considering all lines and pump were empty. I guess my question is how long should that initial crank take to see gas pumping up to my jar at the carb? I'm using a small fuel tank to eliminate the "blockage" potential from the boat tank for now. The engine seemed to be cranking slowly. I inspected the camshaft roller that engages the pump and it seems fine, but I'm no expert. I've tried cranking for 20 seconds at a time and managed to get the filter wet, but no gas up to the carb.

 

[alldodge]

Using a portable tank is a good idea
To verify its not the pump, remove it from the block and reconnect lines. Now pump the pump by hand to see if fuel pumps thru the lines

Being a new pump, my guess is there is an issue with the rod to pump movement

 

[1960 Starflite]

There is a vent tube or hole in the carburetor air horn. Using a bottle shaped like a ketchup bottle fill the carb with fuel. No long cranks. Be careful not to overflow. Works on my 3.0 and 48 Pontiac for season wakeup.