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  1. Scott06

    Mercruiser 3.0l TKS stalling

    What do the plugs look like ? Would take off the fuel filter which is in the bowl on fuel pump see What contents look like When this happens do you have spark or a weak spark. I’d you advance the throttle does gas squirt From accelerator pump nozzles Might be worth looking at fuel pick up...
  2. Scott06

    thunderbolt IV module question

    Yes and maybe Yes the sensor in dist is just a trigger module doesn’t know if it is firing 6 or 8 times a revolution . I repowered from a 4.3 to 5.0 and ran the engine with a 4.3 module until I could find a 5.0 module. This was with a TB 5 but would figure the four would be same Maybe...
  3. Scott06

    2005 Bayliner Capri 175 wont stay running

    Not sure if it has a mercarb or tks might try advancing the throttle in neutral a bit to see If it can stay running while warmed up If it has a choke vs tks make sure you are setting the choke by pumping the throttle a couple times leave the throttle handle at about ten o’clock to get it...
  4. Scott06

    Mercruiser 5.7 won’t make power

    If you still have the donor engine truck cam and lifters that should work for your application
  5. 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
  6. Scott06

    5.0 mpi backfiring through exhaust. Won’t start

    Firing order is correct?
  7. 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
  8. Scott06

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

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

    94 Cobia 5.7 Chevy/Yamaha setup

    I bought an eleven year old boat with 37 hours … For $9 k move on
  10. 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 ….
  11. 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
  12. Scott06

    water in all 4 cylinders

    Good deal
  13. 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
  14. 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...
  15. 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
  16. 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
  17. 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
  18. 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
  19. 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
  20. 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...
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