Logo

Search:

Type: Posts; User: makomark

Page 1 of 4 1 2 3 4

Search: Search took 0.04 seconds.

  1. Thread: Unsteady Idle

    by makomark
    Replies
    2
    Views
    25

    Re: Unsteady Idle

    The IAC valve my just be dirty and require a cleaning vs a replacement.

    wouldn't hurt to make sure the throttle body fasteners are snug...

    It's normal practice to 'scan' the ECU and make sure...
  2. Thread: Question

    by makomark
    Replies
    7
    Views
    132

    Re: Question

    I'm pretty certain you WONT find any mechanical fuel pump accommodations on the early GEN VI production blocks.....electric is the only choice there...
  3. Thread: Question

    by makomark
    Replies
    7
    Views
    132

    Re: Question

    The majority of the newer engines are injected, which means they have an ECU and usually a connection to the distributor. you can usually dress out a Gen 6 with Mark IV bolt ons. To use a carb on the...
  4. Replies
    2
    Views
    76

    Re: Throttle body fuel injection.

    When they used the TBI units on standard production engines, back in the 90's, they were running in an open loop configuration - no O2 Sensor required. If you wanted to do it and run in a closed...
  5. Thread: Loss of Power

    by makomark
    Replies
    1
    Views
    72

    Re: Loss of Power

    not knowing which year you have makes it a bit tough on those that can't see what you have.

    I don't understand how you can rule out an injector without a bit more diagnosis. I would say if it...
  6. Re: 2006 5.7 MPI runs out of fuel after 15 min

    I think Terminal C on the diagnostic connector is the 'switched' fuel pump wire....it may be easier to check there than at the terminals....just another option.

    I never saw any response on the...
  7. Re: 2006 5.7 MPI runs out of fuel after 15 min

    ok....if the bowl is dry and has a vacuum, thats suggesting the low pressure pump isn't filling it and the high pressure pump is trying to work....

    Have you changed the fuel pump relay? I'd...
  8. Replies
    1
    Views
    78

    Re: 305K engine mount bushings

    try finewoodboats dot com....last known place I am aware of....

    good luck
  9. Re: Starboard engine surges, powers down and will not pass 2400 rpm.

    may want to make sure the advance mechanism in the distributors are working correctly - the springs are known to rust away and the weights can wear and get bound up, especially if their maintenance...
  10. Re: meds marine engine diag. system cdi electronics

    Based on their www page, it looks nice but why spend that much money when you can buy something from Rinda and save a bundle?
  11. Replies
    2
    Views
    80

    Re: 1991 to 1997 7.4L Engine Swap

    Sounds like the original engine was a MarkIV block and the newer one is GenV/VI...

    I think you are on the best path with the electric fuel pump and the switch....hard to say which one will be...
  12. Re: Mercruiser Sterndrive wont catch forward or reverse

    Without know who's control box is being used, its only a guess and what Chris posted is the best option.

    Mercruisers usually need 3" of travel in the cable (from N to either F or R) and not all...
  13. Re: 2006 5.7 MPI runs out of fuel after 15 min

    The pic of the parts page you've post is for the 2007 model years....from its reference number....and this is where it gets tricky.

    for some of these engines, you will need the model number and...
  14. Re: 2006 5.7 MPI runs out of fuel after 15 min

    on the returnless systems, if you get fuel to the water separator filter, only the high pressure switch is between it and the fuel rail....
  15. Replies
    10
    Views
    100

    Re: Crusader 8.1 wiring - bench test hookup

    may not be pretty, but a standard wall switch will serve the purpose....they are easy to source...
  16. Re: 2006 5.7 MPI runs out of fuel after 15 min

    Do you have the FCC setup or the returnless setup?

    I'm guessing you have NOT changed the high pressure pump?
  17. Replies
    3
    Views
    72

    Re: Carburetor wedge

    I wouldn't think you need the wedges with the v-drives.....if you have not had them up til now, I wouldn't worry about them.

    All you need is a decent (thick) gasket... Cliff's sell them if you...
  18. Re: 2006 5.7 MPI runs out of fuel after 15 min

    Fuel bowl....or filter runs dry?

    Assuming each engine has its own tank, I'd suggest checking the vent line and the anti-syphon valve for clogging....also, make sure any valves are fully opened...
  19. Re: 350 MAG not revving past 3200 rpm, not planing

    Intake Manifold Vacuum looks a bit low at idle and appears to fall off pretty fast....
  20. Replies
    5
    Views
    85

    Re: 502 MPI idle variation

    Another thing to check for is were around the throttle plate shaft....if its leaking air, the engine will speed up...same for any other vacuum leak....

    Its also quite possible there is another...
Results 1 to 20 of 70
Page 1 of 4 1 2 3 4