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  1. Scott06

    4.3L Carb Mercrusier Auxiliary Heater

    It lines up with the intake runner water cross over is below the thermostat housing it up pull that plug it will be dry won’t run with that much of a vacuum leak
  2. Scott06

    4.3L Carb Mercrusier Auxiliary Heater

    Double check but I belive the plug you circled goes into the intake runner not water crossover
  3. Scott06

    Say it ain’t the transom!

    So it seems like water is coming down the transom when running on muffs on the wagon? Look back there when running can’t have water coming in transom when it’s not in the water
  4. Scott06

    Time for my first bellow change, tips?

    That was exactly what I thought as well With as long as they lasted most likely won’t need it again in your ownership Enjoy the piece of mind now that they are replaced
  5. Scott06

    Outdrive oil leak..

    Up north like that you can’t waste a day of short season … finally warm enough in upstate NY .
  6. Scott06

    7.4 L Volvo Penta turned into a milkshake - what to tell the mechanic

    The 4 bolt mains is a myth in most cases. Marine engine is essentially the same as a truck engine cam is similar to truck cam, swap head gaskets core plugs marine circ pump and go You said it was winterized by marine shop you should start there it is likely what you mention that winterization...
  7. Scott06

    Ford 302 issues

    Interesting do you have to swap a points distributor or can u put points in igniter 2 ? As mentioned seem to see a lot of discussion on GTO forum in on similar issues. The guys who run points also say they have better luck with old NOS points vs what is made now so no free lunch Either way...
  8. Scott06

    Mercruiser 1999 5.0 carb oil pressure switch

    there are two oil pressure switches one for the fuel pump which has two wires , thus switch cuts off power to fuel pump if ignition is on but engine not running. the audio warning oil pressure switch will have one wire on it As it is only opening and closing ground leg to block ground. On my...
  9. Scott06

    Mercruiser 1999 5.0 carb oil pressure switch

    The alarm switch back on engine is no good it makes the ground connection via the tan and blue wire There are three switches low oil pressure, engine over temp and low drive lube They make the ground connection for the buzzer all switches in parallel. When you start the engine the purple wire...
  10. Scott06

    PCV valve/blow by issue

    Yes 115 is getting very low. If you had fuel contamination with oil that isn’t good. My 330 hr engine spits a fair amount of oil into carb top top but has great compression. I have typically seen more blow by in both my boats , and some oil in flame arrestor. Both these had good compression...
  11. Scott06

    Alpha one gen 2- upper drive shaft seal leak

    We are talking about the same seal. I used a socket same diameter as the seal on an extension to drive it in
  12. Scott06

    PCV valve/blow by issue

    The compression numbers are fine. Start with cleaning the flame arrestor you will get some oil off the valve cover vent into the flame arrestor. Normally turning the idle mix screw in should stall the engine, unless the float bowl is over filling and spilling fuel into the bores. Would always...
  13. Scott06

    Ford 302 issues

    https://www.summitracing.com/parts/lil-20700?seid=srese1&ppckw=pmax-tools&gclid=EAIaIQobChMI0frBu7GIhwMVGKRaBR1_HgFlEAQYBCABEgKhMPD_BwE this is the one I use. Bought it after fixing and old outboard that had two bad coils. Spark looked ok holding a plug … rebuilt carb, fuel pump still would...
  14. Scott06

    2011 Tahoe Mer 4.3 - engine miss firing

    If there was a bad connection and ecu doesn’t get the power it likes sure could happen. Take it out for test run but stay close to the launch or where ever you keep it.
  15. Scott06

    Outdrive oil leak..

    Not sure if one seal keeps water out other seal keeps oil in?
  16. Scott06

    Alpha one gen 2- upper drive shaft seal leak

    That is the same set, come to think if it I may have used a big socket.
  17. Scott06

    Ford 302 issues

    So when this occurs do you have strong enough spark on a gap tester. Need to figure out if this is spark or fuel related. it doesn’t take any power to rev up in neutral It is kind of a meaningless test.
  18. Scott06

    Advice Needed on Boat Repair.

    Nice hopefully your DDIS stays working. Not sure why merc dropped this system So quickly.
  19. Scott06

    Time for my first bellow change, tips?

    Use merc power tube or similar to make it slide. I rigged up a similar tool out of a 5 lb hammer and a pvc drain grate. I found in needed two set of hands to do this one to hold the bellhousing vertical then one person press in the retaining ring. Found if bellhousing was angled up the bottom of...
  20. Scott06

    How long do bellows last?

    Exactly my experience I did my 2004 boat two springs ago exhaust bellows had torn driveshaft was just getting stiff and chaffed on sides To the OP if u plan to keep it have them changed on the off-season. At this point the if u change them it will be good for the life of the boat …
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