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  1. R

    7.4 MPI Fuel pressure regulator/damper?

  2. R

    7.4 MPI Fuel pressure regulator/damper?

    Hi I just read your problem and I am pretty sure I have the same. You said you found the part on eBay what part number did you need. As I went to the Marine shop before taxes they want $785.00 . Would it be possible for me to call you to get more information. Thank-you
  3. R

    Mercruisier 7.4 litre gas pressure

    Yes the damper seems to be attached to the fuel rail. I was told that if no gas comes out of the vacum to the damper then the damper is good.
  4. R

    Mercruisier 7.4 litre gas pressure

    In this picture where you see the metal plate with the two hoses behind the plate you have a fuel pump and the regulator the other item in the circle seems to be the damper valve. But where the plate is and regulator thats where we unpluged the vacum hose and get 40 psi. I have ordered another...
  5. R

    Mercruisier 7.4 litre gas pressure

    This is the Fuel regulator that I have just installed,
  6. R

    Mercruisier 7.4 litre gas pressure

    We have now changed the fuel pump again also the fuel cooler. This is the kit that has a bulletin as the replacement part. Now when we test it we get 30 lbs gas pressure and when we unplug the vacuum hose from the regulator we get 40 lbs of presseur. We went to try it and with the vacuum hose...
  7. R

    Mercruisier 7.4 litre gas pressure

    861156A1 Not in stock and is no longer made - we do not have any Manufacturer: Mercury Marine
  8. R

    Mercruisier 7.4 litre gas pressure

    Wé just found out that the new fuel pump we installed is a jobber ( ciera ) just ordered a new one but a Quicksilver it is one that says low fuel pressure with fuel boost. This pump number is 861155a3 sold by Land N Sae . Lets hope it works and my next choice is a kit they came out with vas à...
  9. R

    Mercruisier 7.4 litre gas pressure

    My serial number is is 0m009670 And regulator number p/n 710-861126a1 quicksilver
  10. R

    Mercruisier 7.4 litre gas pressure

    Hi I have a 2001 bayliner ciera 2855 with a 7.4 litres moi engine. My gas pressure is 35 lbs at idle and drops to 32 lbs at 2000 rpm. I have removed fuel cooler cleaned it out replaced fuel pump and regulator. Also changed gas filtrer. Gas lines changed connector to fuel tank and tried with...
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