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  1. C

    Mercruiser 3.0 Fuel Issues

    Guys i think i figure out the issue. What can a bad pump rod adjustment do? Is way off. I will fix it tomorrow. The little thing has 3 holes and it is set on the middle one. And it is not on 29mm is more like 40 almost. I think Thats why the choke will not work properly and idle is always off.
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    Mercruiser 3.0 Fuel Issues

    Only happens when cold
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    Mercruiser 3.0 Fuel Issues

    Choke idle mix uhmmm should i post a new thread or keep going here? If so how do you fix the choke idle mix
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    Mercruiser 3.0 Fuel Issues

    Guys the problem was fixed with the pump doing 9psi. Now it does 6psi adding the gasket (spacer) 0.25. I also added a fuel water separetor. And temove the clear filter. Now i want to fix the other issue i have. At start up when the engine is idling it smokes 😓 i will post a new threat. Thanks...
  5. C

    Mercruiser 3.0 Fuel Issues

    The gasket (spacer) 0.25 thick arrived. I will test it out and see if that fix the problem
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    Mercruiser 3.0 Fuel Issues

    Motor serial D851715
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    Mercruiser 3.0 Fuel Issues

    But then again is do to missing the 0.25 gasket spacer. Which i will receive tuesday or wednesday. My main concern is why the fuel line from tank to pump wont stay full of gas. The anti syphone fitting is new and in place
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    Mercruiser 3.0 Fuel Issues

    With the fuel regulator 5psi without it 9psi
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    Mercruiser 3.0 Fuel Issues

    This is the pump i bought off amazon Fudoray Bomba de combustible mecánica para motores Mercruiser 120 140 165 180 181 170 190 225 470-1 488 OMC Volvo Penta 181 2.5 3.7 L sustituye a motores 3854858 42725A3 509407 3333333382 9-35422 8M0073435 861676A1...
  10. C

    Mercruiser 3.0 Fuel Issues

    Turn out there is one and is part of the tank
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    Mercruiser 3.0 Fuel Issues

    You need the engine serial? Or pump Oops looks like the tube is part of the tank
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    Mercruiser 3.0 Fuel Issues

    And another thing a learned my fuel tank didnt have a fuel pickup tube? Just the upper part. Is that normal? Or does it need the tube?
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    Mercruiser 3.0 Fuel Issues

    It fills up and hold full vut when ever i start it from cold again it empties and on the second pic is a clear filter from tank to pump. To see if it hold full or stays empty, and it does get empty enventually. I disconnected the line from tank put my finger and it does suck 🤷‍♂️. But it will...
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    Mercruiser 3.0 Fuel Issues

    The thing that looks like a pump is a fuel regulator. I was testing because the old pump i had was pumping 10psi 😳. And the other thing is the timing light lol. I left it there i was setting the timing
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    Mercruiser 3.0 Fuel Issues

    What im trying to say is that it pump but doesnt suck the gas up all the time. Is that normal? It sucks intermentently if no presure is found. Menaing if i disconnect it from the carb it sicks and pump. But when i connected it again eventually it stops sucking
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    Mercruiser 3.0 Fuel Issues

    I try the choke and choke is no problem. What i did notice and i do not know if thats normal. I added an extra fuel filter from tank to pump. At first it pumps fine. Then the fuel filter empty completely. I remove the hose from the tank and i do not fill it sucking. Is it suppose to suck...
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    Mercruiser 3.0 Fuel Issues

    Well to be honest i got the carb on amazon brand new and opened up and set it correctly but i do notice that the choke makes it to rich and dump alot of gas in there making it smoke on cold start. My old carb didnt do that. What can i do about it?
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    Mercruiser 3.0 Fuel Issues

    Before you guys said anything Im using a fuel regulator but only until i get the fuel pump Original gasket that should arrive next week wednesday. The after market fuel pump seems to pump to much pressure around 9psi. Moreover, as you can see on the pic the clear fuel filter is half full and it...
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    Mercruiser 3.0 Fuel Issues

    Got it. I will get that fix
  20. C

    Mercruiser 3.0 Fuel Issues

    I bought the fuel pump of amazon and supposely was marine grade
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