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  1. alldodge

    Volvo 5.7 gxi c No Start

    Gas mixing with water will smell like gas. Remove all the plugs and note if any still look wet. Gas should evaporate but water won't. With plugs out spin the motor over to see if anything comes out of the plug holes.
  2. alldodge

    Velvo penta does on water

    It could be the exhaust is mostly plugged up. It runs on land because there is no back pressure. In the water the exhaust builds up and is unable to be fully pushed out
  3. alldodge

    1973 mercruiser throttle info

    I think @Bt Doctur might have them setup
  4. alldodge

    2010 Tahoe q4 4cylinder

    Your Tach is off. Your motor won't turn 7000 rpm without coming apart. If your not a WOT then my guess is your closer to 3800
  5. alldodge

    Engine swap and the ECM

    Should be plug and play "IF" you can get the ECM reprogrammed. Most likely need another prop
  6. alldodge

    2010 Tahoe q4 4cylinder

    Depends on what your ratio drive is and if your speed is being read by a GPS or the boat speedometer
  7. alldodge

    Frustrated fuel

    There are no differences between auto and marine coils. That said its hardly ever the coil, but you do want one with an internal resistor, not one that uses external resistor
  8. alldodge

    1992 Rinker Captiva 186

    He's meaning that the cap was being held about an inch higher by the screws. When all screws were removed the top dropped down slightly. It will need to be held up to reattach
  9. alldodge

    Velvo penta does on water

    If accurate 700 to 900 is more then enough to keep it going. Its a real puzzler
  10. alldodge

    1996 454 thunderb ign thompson wont get on plane

    This is what I didn't understand. Now that you posted a pic of the Dizzy it's a Delco EST (3rd pic) The connectors showing would be from a EFI wiring harness. Could be the PO either used a EFI harness to replace the one on the motor, or the EFI components where removed and a carb installed...
  11. alldodge

    120 Mercruiser 2.5L - No spark

    Points don't spark The points are not grounding the coil when they close or there is no power to the coil. With 12V on the + side and grounding the - side a spark will happen. All the points do is ground the - side
  12. alldodge

    Volvo 5.7 gxi c No Start

    Those are some high compression numbers, new motor are around 150. Where any of the plugs wet as in water found? Could just be the gauge Have spark and have fuel pressure. Will it run if a very small amount of gas is dribbled in the throttle body?
  13. alldodge

    1993 Sea Ray/ Mercruiser 4.3/ Thunderbolt IV ignition timing

    Agree, TB4 is point and shoot, no base timing mode. 650 RPM
  14. alldodge

    Velvo penta does on water

    Except for the one cylinder the numbers are good. Most likely a valve issue The one cylinder should not cause it not to run in the water. What is your idle rpm, 600 ?
  15. alldodge

    Penta Cooling Hose

    Hey @bruceb58 have an idea of the part location?
  16. alldodge

    EFI specs for techmate pro

    It should be 19 because the ECM sensors use a ground wire, where temp gauge sensors use the body as ground
  17. alldodge

    EFI specs for techmate pro

    At 113* the motor things its all warmed up, so its not getting enough fuel
  18. alldodge

    Therm for 4.3 Merc 807252T2 or 8M0109441 ?

    They are the same part, both are 160*F Merc may change a design or iin most cases, it changes vendors so the part number is changed to keep track of configuration. In any case you can use either and they both work the same
  19. alldodge

    EFI specs for techmate pro

    That sounds like the Engine coolant Temp (ECT) sensor and or the Manifold Air Pressure. You may even have a MAPT (MAP with Temp). When cold the ECT should tell the ECM that its cold and give it more fuel, just like a choke on Carb. When cold the IAC should be allowing more air since there is...
  20. alldodge

    120 Mercruiser 2.5L - No spark

    I'm wanting you to verify that the points do open and close. This is the reason to loosen the dizzy, don't remove it. If the points do open and close then they will work. I want you to hot wire the coil just to find out it does run, disconnect jumper wire to turn it OFF. If it does run, now...
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