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  1. Scott06

    5.0 mpi backfiring through exhaust. Won’t start

    so you fixed a fuel supply issue now its backfiring ? Might be worth running a compression test to see if exhaust valves are seating
  2. Scott06

    5.0 mpi backfiring through exhaust. Won’t start

    Firing order is correct?
  3. Scott06

    5.0 mpi backfiring through exhaust. Won’t start

    merc never made any reverse rotation engines for sterndrives your 2005 would be a standard rotation engine, the drive will be counter rotating
  4. Scott06

    Leak from "Lower/upper shoe"??? HELP!

    Rare indeed … Go be numb nuts somewhere else
  5. Scott06

    94 Cobia 5.7 Chevy/Yamaha setup

    I bought an eleven year old boat with 37 hours … For $9 k move on
  6. Scott06

    Leak from "Lower/upper shoe"??? HELP!

    Seriously go pick a fight with someone else yes maybe with the white paint and sea Ray stickers not so many but under that it is an alpha one drive which parts are plentiful and s loads were made Also my neighbor has a sea Ray branded outboard on his 80s vintage bowrider ….
  7. Scott06

    94 Cobia 5.7 Chevy/Yamaha setup

    Yamaha only sold drives in the US a handful of years and parts are non existent. Would steer clear unless it’s such a good deal repowering makes sense
  8. Scott06

    water in all 4 cylinders

    Good deal
  9. Scott06

    Valve Cover Breather?

    Yeah not the best but I just got used to wiping the oil off the valve cover. Was a very reliable engine that withstood a lot of abuse tubing and skiing with my kids so no complaints on my end
  10. Scott06

    water in all 4 cylinders

    Would spray wd40 in cylinders and turn it over with out spark and get the milky oil out of the pan When you get the manifold and riser back on get it running and change the oil multiple times until it runs clean. Change oil let it idle until hot change it again , can do that with only 3 qts in...
  11. Scott06

    Mercruiser 3.0 RPM Drop Every Few Seconds?

    Do the dash gauges drop when it happens Might look at ignition wires cap and rotor maybe a loose plug wire . What do spark plugs look like
  12. Scott06

    Intake warning sound for one second

    If it is the buzzer three things can make it go off oil pressure switch , temp switch , or drive lube bottle level sensor
  13. Scott06

    Leak from "Lower/upper shoe"??? HELP!

    Get a factory shop manual for your drive and engine. If you can wrench manual has great info on all repairs. Might need a few special tools like alignment bar, the wrench to get the nut off the outdrive to replace seal, rig up a pressure tester
  14. Scott06

    Leak from "Lower/upper shoe"??? HELP!

    Not rare sea ray just painted alpha one gen one drives white no different than the black painted merc branded ones
  15. Scott06

    Valve Cover Breather?

    Correct had the same issue with my 3.0 if i recall i was abke to rotate the flame arrestor to put some pressure on the hose kind of jamming itinto the valve cover nipple. Also i think the replacement hose needed to be trimmed an inch …Never really stayed on well
  16. Scott06

    Idles great / misses when throttled up

    Good , yes burn some gas … i do the same with my GTO. You will find the TB doc Chris sent that the the diagnosis is very very simple as well. The TB is essentially an merc designed HEI system. Not as commonplace as the GM hei is in the auto world but every bit as good a system. Out of all the...
  17. Scott06

    Idles great / misses when throttled up

    its your show but do the trouble shooting first if you can set points you can handle through the trouble shooting guide. No sense replacing the sensor if the module is at fault … you have to remove the rotor and trigger wheel attached to it to get the sensor out. last TB rotor i removed was...
  18. Scott06

    Boat swamped, let's see if we can get it running...

    Youve come a long way with this , most other folks would have left it rotting in the yard…keep going… i would carry an extra fuel pump relay and i do keep a tb module and distributor sensor on my boat. I got a used module off ebay for like $200, had a spare distributor off my old engine. also...
  19. Scott06

    4.3 carbed Volvo Penta kill switch question

    Dont have serial number or exact model of this engine as it is my neighbors 2001 Galstron with a 4.3 carbed engine SX drive. Boat has been well cared for and maintained , essentially trouble free. he couldn’t get it to run the other day, turned over just would fire. My dad helped him diagnose...
  20. Scott06

    Serpentine belt replacement 4.3GXI-E

    Ditto when i sold my old boat in 2016 , it was a 1991 that still had all the original belts and hoses…
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