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  1. Kailofsouls

    73 1150 fuel pump/flow question

    I'm fairly certain that I don't have air in my fuel lines all new lines are hose clamped on. I'm just trying to figure out the direction of fuel flow through the check valves. Everything primes up nicely, but it's not drawing fuel like it's supposed to so it can stay running. Also my quick...
  2. Kailofsouls

    1976 mercury 850 idle problems

    Have you checked the fuel lines? Mine were shot on my 73 1150 they may look ok on outside but inside they could be falling apart. 3/8 from tank to motor 1/4 from pumps to carb was my sizes. I just bought fuel line by the foot at an auto parts store. If you work at the brass fittings you can pull...
  3. Kailofsouls

    73 1150 fuel pump/flow question

    The reason I replaced them was that I replaced all fuel lines, and had to remove the pumps to do it. Figured while I was there that I didn't know how old any of it was, and I damaged one gasket so I replaced everything. The issue is that everything is clean and new. There's no reason that I can...
  4. Kailofsouls

    73 1150 fuel pump/flow question

    So I replaced the dual fuel pumps on my motor but I think I might have my check valves backwards I'm not sure. When I run the motor after 2 minutes or so if I don't squeeze the primer bulb the motor will die. Vent is clear, tank is clean, all fuel lines are brand new, new bulb, and inline fuel...
  5. Kailofsouls

    Possible water intrusion?

    Ok I'm replacing my fuel lines and pumps in a 73 1150 in-line 6. Pulled the upper pump and there is droplets of water behind the diaphragm. I assume that is not normal. What could cause this? The bottom pump is dry behind it and my plugs look normal not washed clean or anything. Compression is...
  6. Kailofsouls

    72-73 Mercury 1150 checking some information

    I was informed by a coworker that what I did was a "dry" compression test so I'll try to get it running to warm it and try again. Attached is a screen shot of my service manual I underlined my timing numbers.
  7. Kailofsouls

    72-73 Mercury 1150 checking some information

    I had another post about fuel pumps. but now I'm on to something else just want to double check my info. fuel pumps are replaced, carbs cleaned (seats and float needles replaced as well as gaskets). Idle screws set to 1 1/2 turns out. The problem is I can't get it to start or stay running...
  8. Kailofsouls

    Mercury 1150 fuel pump question

    I've got an older 72-73 merc 1150 and I need to replace the fuel pumps (older style triangle shape) I can't get to the lower one it's below the level of the lower cowl is there a trick to getting to it without pulling the power head? I can't figure out how to get the lower cowl off otherwise.
  9. Kailofsouls

    77 mercury 1150 no top end

    I have a issue where my engine starts idles great seems to accelerate fine till I get to the last half of my throttle at that point it bogs out sometimes stalls rpms drop off and the boat won't lift up or plane out and can't get over 5-10 mph I just had her running at about 35 mph memorial...
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