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  1. mbaker812

    At wits end Runs great for 20miles then knocking then sputtering 3.0

    sounds like your head gasket blew.
  2. mbaker812

    went from 3 blade to a four blade prop

    bought a 300hp long block, that being said not figuring I would get the max out of it. spoe at length with OBD diagnostics about the tune and he said it could run lean at top end but my plugs dont show that. going to take ALLDoges advice and get numbers with the 3B back on there and see how that...
  3. mbaker812

    went from 3 blade to a four blade prop

    thanks Mr Dodge that is what I am thinking also. i ordered the 4b 19 but put the 3b 14,25 x 21 back on and will see what that looks like. I can always return the 4b if not used and get the correct 4b afterwards
  4. mbaker812

    went from 3 blade to a four blade prop

    so do you think a 4b 17 would help it? I used a prop calculator to see a better slip number.
  5. mbaker812

    went from 3 blade to a four blade prop

    I would agree but I have to start somewhere. the boat is heavy I dont think this boat brand new did better than 46-48. the speed was on GPS and the rpms on the tach. the boat weighs 3500 lbs dry. brand new motor runs great. guess I could check the tach with my tach lead on my timing light to see...
  6. mbaker812

    went from 3 blade to a four blade prop

    I have already checked that. thank goodness I had an aluminum prop on there. I grew up on the ohio river and only had one boat I put a stainless prop on due all the underwater debris. Thanks for the input.
  7. mbaker812

    went from 3 blade to a four blade prop

    thank you again for your answers and advice. Have a great day.
  8. mbaker812

    went from 3 blade to a four blade prop

    Sorry Mr Dodge I see you have answered the question. Thank you
  9. mbaker812

    went from 3 blade to a four blade prop

    I hit a log this weekend with that new four blade 14 x 21 and snapped a blade off so I ordered a new 14 x 19 to see if it helps. The old 3 blade 14.25 x 21 gets on plane in around 12-13 seconds the four blade takes a bit longer to plane and it seem like the motor works a bit harder, like it...
  10. mbaker812

    went from 3 blade to a four blade prop

    so I went from a 3 blade 14.5 x 21 prop to a 4 blade 14 x 21. handles low speed better and maneuvers excellent but seems like it works harder to get on plane. motor is 5.7 efi rebuilt to be 300 hp or close old motor replaced was 230 hp 1999 efi 1.47 alpha 1 gen 2 lower unit boat is a sea ray...
  11. mbaker812

    alpha 1 gen 2 lower unit repaint

    recommendations on brand of lower unit paint? I tried interlux but it dries more grey than black
  12. mbaker812

    Swap from 3 Blade prop 19P to 4 blade prop

    I just made this swap but went from a 14.25-21 three blade to a 14-21 four blade. tried it this weekend and better bite and handling for sure with the 4 blade especially at lower speeds. stayed planed all the way down to 15 mph. 3 blade would come off plane at 18 mph. docking and trailering was...
  13. mbaker812

    1999 mercrusier EFI 5.7 fuel pump not powering on

    Thank you Mr Dodge I hope this post helps someone else.
  14. mbaker812

    1999 mercrusier EFI 5.7 fuel pump not powering on

    Mr. Dodge, so here is the final out come. traced FP ground all the way through the open harness and found broken ground wire under starting harness. run continuity test and there it was. relay grounds all go together into the ECM (black with white stripe). going to replace the MAP sensor repair...
  15. mbaker812

    1999 mercrusier EFI 5.7 fuel pump not powering on

    Yes MEFI-1. since the code 14 is coming over I will need to replace the MAP sensor for sure. I am going to open up the harness and find the grounding issue. I am fairly sure the ground to the FP is broken or frayed. The serial number was off my 5.0 but its all I have as the remanufacturing...
  16. mbaker812

    1999 mercrusier EFI 5.7 fuel pump not powering on

    some person wire the LED that shows power on with a black wire. all goo on the key switch.
  17. mbaker812

    1999 mercrusier EFI 5.7 fuel pump not powering on

    MR All Dodge, so I can get on the right page with you I just want to give you the run down and maybe you can help me with this aggravation. this is a brand new 5,7 rebuild fuel relay gave me a problem twice since installed and when I fixed that enough to get back to dry land I had to zip tie...
  18. mbaker812

    1999 mercrusier EFI 5.7 fuel pump not powering on

    serial number is l086285, I now believe I have an open ground. it was on the ignition relay. I put a grond from battery to the Ign relay and it cycled and I had my meter on the green and white wire on the fuel relay and the ecm powered that wire. did a continuity test from the ground relay to...
  19. mbaker812

    1999 mercrusier EFI 5.7 fuel pump not powering on

    Can anyone help with this issue. my fuel pump is not powering up when I turn the key to the run position and my alarm does not go off for low oil pressure. could I have the key switch wired incorrectly? Does the purple wire and the black go on the same terminal it is a 4 position key switch.
  20. mbaker812

    force 125 water muffs on engine running low pressure

    i have a force 125 that has been giving me fits since last year with power. now this year I put in a new impeller and hooked it all abck up and I have low water pressure and water was coming out on the three little holes near the mounting bolts on the bottom.
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