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Type: Posts; User: makomark

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  1. Replies
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    Re: Sluggish engine

    a lot of unkonowns regarding the fuel...there is usually some margin built into the recommended amount so I'd say a big factor is how much you needed vs what was added.

    Fuel aside, I'd be inclined...
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    Re: 8.1 won't stay running.

    I doubt that.....now a first class airline ticket & a brand name hotel room would definitely fit that description....
  3. Re: Crusader Engine Data on to Garmin 4000 and 5000 series Chartplotters

    The 2008's have a CANBus port out of the ECM's.....

    The master-slave cable will allow a single CANBUS connection to both ECM's. The NEMA2K is electrically similar to the CANBus but the addressing...
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    Re: Manifold Question

    When I pressure test the cooling system, I do it full.....if the system holds, there's nothing to worry about.

    Assuming the cooling system isn't holding pressure, a thorough inspection usually...
  5. Thread: Welcraft 190

    by makomark
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    Re: Welcraft 190

    Are you talking inboard or an inboard/outboard (aka I/O)??

    Given the title, I'll proceed with I/O infered.....No on your race engine (w/o major mods) and unlikely on your V-6. If you are serious,...
  6. Thread: Engine Dying

    by makomark
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    Re: Engine Dying

    If the tank has a bunch of crud/sediment in it, that stuff will cover the pickup tube's screen and starve the pump for fuel as well....
  7. Thread: Engine Dying

    by makomark
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    Re: Engine Dying

    the A/S valve should be on top of the tank....and it should be the fitting the hose attaches to.

    Your assumption w/ the temporary tank is correct....just make sure you securely plug any hoses you...
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    Re: mercrusier 160 ignition problems

    Going on memory, a 6100 uses a shutter setup under the rotor.....the test just mimics the shutter blocking/passing the light....pretty straightforward....the test details the other measurements to...
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    Re: Reverse rotating engine

    Me neither!!


    That's a different scenario....and I agree, if it was under full load, it would run for long....
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    Re: Reverse rotating engine

    You should be able to ascertain rotation from the serial number plate....

    As far as the mismatch goes, it depends on what you have. If its a velvet drive, say setup for a LH input and it goes...
  11. Thread: v drive

    by makomark
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    Re: v drive

    the pump in a walters V-drive on circulates the oil.....not like a velvet drive....
  12. Re: Mercruiser 8.1 EFI 2005 390 MY Both Engines only advance to 3800 RPM

    growth on the bottom?

    any recent service done?
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    Re: mercrusier 160 ignition problems

    Does the harness still have the resistance wire in it? If so, the other resistor isn't necessary.

    The S terminal on the solenoid should get +12VDC until the key is turned to the START...
  14. Re: Propeller Not spinning in Forward or Reverse

    If the throttle advance button is stuck in the IN position, the shift function is disabled - so you can speed up the engine.....

    so, if the shift cable isn't moving back at the engine, then the...
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    Re: 8.1 won't stay running.

    that would be the best approach....and while you are there, you can get a baseline for the MAP and other sensors of interest....
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    Re: 8.1 won't stay running.

    I interpret 99.9% to be functionally equivalent to 100% .....

    the exact value varies (& again, the 555 isn't my strong suit) based on engine's mechanical health and state of tune.....I'd expect...
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    Re: Correct screws for 5.7 water pump

    Based on the choices you offered, I'd lean towards the zinc.....18-8 isn't 304 or 316, and if it's imported, I'd not even go there....

    I've had good luck with nickel plating but they aren't...
  18. Re: Propeller Not spinning in Forward or Reverse

    Was the drive off recently for service??? may not have been put back on correctly....I'd make sure the cables are connected and then check the shift linkage on the drive (on the forward edge, between...
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    Re: 8.1 won't stay running.

    You're right, IAC should be maxed out at idle.....

    Before condemning the IAC, I'd make sure the MAP sensor was somewhat accurate - The manual has a chart crossing the voltage produced with the...
  20. Re: 1977 Century Arabian 454 Trouble Starting

    could just be evaporating if it sits a while (a week) between starts....if it happens overnight, then I'd agree with the bowl not being sound...
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