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  1. Scott06

    Popped through the intake.

    this is one of the best spark plug reading tutorials I have found http://www.wallaceracing.com/plug-reading-lm.html
  2. Scott06

    Trouble starting a Mercruiser 4.3L I/O

    you must not be pressing the button in to rev it up in neutral. why dont you start a new thread vs tagging on a 14 yr old one . tell us what you are working on and what issue u are trying to solve
  3. Scott06

    Tb IV intermittent spark ?$#???

    Wait sorry i misread the tb trouble shooting, if you do not get spark striking the green white its says to try new coil then replace module in that order… do u have a spare coil to try ?
  4. Scott06

    Carb to MPI problem 2011 Merc 4.3

    it could be and given how many times you see strange misfire symptoms cured by this you need to rule it out
  5. Scott06

    Tb IV intermittent spark ?$#???

    If it is a good ground then that means the sensor is bad. Not surprising since it went scuba diving ... Would recommend getting an OEM sensor vs the aftermarkets ones. this is an OEM quicksilver from the quicksilver store on Amazon...
  6. Scott06

    Carb to MPI problem 2011 Merc 4.3

    @alldodge and @QBhoy may have some other ideas given its MPI
  7. Scott06

    Tb IV intermittent spark ?$#???

    Follow the service bulletin he posted I circled where you are at in it - by striking the white and green lead to ground you are simulating what the sensor in the distributor does to get the coil to fire. If it does fire at coil the sensor is bad if it does not fire follow to testing for bad...
  8. Scott06

    Carb to MPI problem 2011 Merc 4.3

    It is but lets do some diagnostic work first How about a little more description of the problem ? And what’s your serial number Have you checked your fuel filter contents for any thing but fresh clean gas?
  9. Scott06

    Carb to MPI problem 2011 Merc 4.3

    No MPI is very good. 220 hp on your engine vs the 190 hp carbed model. yes the cap is a common fail point for misfires. Certainly could be other things but if you dont know when it was changed would be a good thing to rule out.
  10. Scott06

    Carb to MPI problem 2011 Merc 4.3

    That is not a carburetor. You have an mpi engine. when was the last time cap and rotor were changed ? Common fail point on these engines is the crab cap.
  11. Scott06

    Carb to MPI problem 2011 Merc 4.3

    Definitely rebuild the one you have. The main part is to make sure you are getting the passages clean. I use a harbor freight ultrasonic cleaner works nice on the rebuilds i have done with it. Thats is whee most carb rebuilds fallshort , need to get passages clean. From your description either...
  12. Scott06

    Steering pin replacement

    Have you priced the oem part? Thats gouging. its not the same part. There are a couple price brackets you will see for these $29-39 , around $100 like this, and the oem which is like $300 Its your boat Your call.
  13. Scott06

    Steering pin replacement

    Would get the steering pin from nuwave marine. you consistently see good comments about this part...
  14. Scott06

    Carb to MPI problem 2011 Merc 4.3

    cliffs high performance and mikes carb parts are both excellent parts and tech resources. mikes has a you tube channel with how to vids https://cliffshighperformance.com/ https://www.carburetor-parts.com/
  15. Scott06

    Overheating

    The rubber tubes on the exhaust system between elbows and down elbows, and wye pipe. Wye pipe does t need to come out to change flaps (shutters), bute piece of them may have fallen down into transom housing . how hot did the engine get? Would keep an eye out for water in oil if engine got hot...
  16. Scott06

    Merc 3.0 Sterndrive Winterizing Question

    if your sea ray has the in console built in cooler like mine- put some af down the cooler drain. it generally traps some water, cracked mine on my first sea ray years ago next spring water was leaking on floor
  17. Scott06

    Merc 3.0 Sterndrive Winterizing Question

    crack open a beer cause this will get to be worse than a oil thread... the cheaper RV marine water system ones are alcohol based and do not have corrosion in inhibitors in them. What marinas doing hundreds of boats will use is PG in a huge tub (100's of gallons) and check the strength pf the...
  18. Scott06

    Broken Skeg Tip...Repairable?

    Depends on what prop you are running. Price some of the higher end stainless and what you paid for the skeg repair is a lot cheaper. Last time i had my SS 4 blade fixed it was just under $300 so pick your poison
  19. Scott06

    Replacement of water circulation pump V6 4.3L

    Are you sure the noise is not from the belt or pulley? I also boat in fresh water and have never had to replace a circulating pump, on boats that have been 33, 25, and now 18 years old. You may want to see if the belt is making the noise or feel the pump for roughness by hand. Would hate to...
  20. Scott06

    Broken Skeg Tip...Repairable?

    I think it is mostly protecting the prop from a strike. I lost a bunch of each blade when my neighbor loaded my old boat on the trailer drive was still down... this was after previously giving the skeg a hair cut... had it been repaired skeg would have had some damage from the ramp but prop...
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