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  1. Scott06

    Trying to diagnose fuel supply issue after running out of gas

    Probably to keep debris from manufacturing out of the fuel system long enough to get it through warranty.
  2. Scott06

    Oil dipstick question for 4.5 owners, which way around?

    if it is an 1-2" higher you are just getting oil off the side of the tube. and I would use the lower side for level. as for being 500ml or about 1/2 a qt over spec. when sucking out of a marine engine you never get all of it out. As I mentioned I add 4 qts after oil change and top up from...
  3. Scott06

    Oil dipstick question for 4.5 owners, which way around?

    how different are they - 1/4-3/8" ? You are probably getting some from the side of the tube when taking it. It doesnt have to be exact. My 5.0 I believe takes 5.5 qts after qc I never put in more than 4.5 qts .
  4. Scott06

    Better muffs for Alpha One drives?

    I do the same, but if you want to backfill you can do it from the thermostat too. I take the hose off that delivers raw water from outdrive to thermostat housing. I use a J shaped piece of an old radiator hose off one of my cars as a funnel to pour in AF. If you put the plugs back in you can...
  5. Scott06

    Trying to diagnose fuel supply issue after running out of gas

    Yeah filter should not be collapsed. Leave it out put bowl back on and see what happens. my 3.0 originally had a sintered ceramic filter with a spring holding it in place. Spring rusted out from water in bowl. No idea how many years i ran just fine without the filter in place and essentially...
  6. Scott06

    MPI fogging mixture vs fuel return

    I think ted explained it better And his method of adding oil to remainder of fuel makes sense.
  7. Scott06

    Replacement Oil Filters

    https://www.oilfilter-crossreference.com/convert/MERCRUISER/35-883702Q Should cross reference that filter
  8. Scott06

    MPI fogging mixture vs fuel return

    Ot sure if that was sarcasm or i answered your question ?
  9. Scott06

    Better muffs for Alpha One drives?

    did you try twisting the rectangles that seal to drive 90 degrees so they are vertical. These are basically the same ones on use on my Alpha gen 2
  10. Scott06

    Anti-freeze Question . . . Change of Color ???

    I would think zinc or any of the temporary hardness mineral deposits that might be in the bottom of the heater tank. PG is colorless so the dye is only for leak detection. Be interesting to put a pencil zinc in the AF to see what happens... Do you still get it testing as AF when it is clear?
  11. Scott06

    98 4.3 Mercruiser Engine Removal Advice

    Not sure what you are doing but I found it much easier to fully assemble and run on the ground. You can easily jumper out the cannon plug to test wiring harness etc then drop in the complete bob tail. I personally found it easier to remove the two lag screws holding the mounts to the stringers...
  12. Scott06

    Water penetration in Alpha 1 sterndrive

    Not sure the age of the boat but anything is possible. Even a boat kept under cover inside etc gets water in it. My previous boat had two soft spots in the floor where you came back on board from the swim ladder and between the consoles- where the floor got wet when in use. This was a boat that...
  13. Scott06

    MPI fogging mixture vs fuel return

    Yes there is a pressure regulator that bleeds off the excess pressure and fuel volume, but you are returning 10:1 and mixing it with 10:1 so it will be the same ratio not get more concentrated....
  14. Scott06

    98 4.3 Mercruiser Engine Removal Advice

    this is easier than removing an engine from a car with the exception of the height needed to pull. You can take the wheels off the trailer and roll it on the hubs if that gives you more height. Eventually you are going to re-install this or another engine? Would be good to figure out how you can...
  15. Scott06

    Overhauling my 1988 MerCruiser 4.3 ltr. engine

    Good job and congrats, glad to see it completed. Get the drive on it and go burn some gas....
  16. Scott06

    Trim sender vs stick

    you can splice it or try and re-solder it. Yes a full repair has the wires going through the transom which is best done when the bellows are being done and everything is completely apart. If you are old enough to remember boats before trim gauges you can also leave it alone ....
  17. Scott06

    Tachometer bouncing

    The float bowl is overflowing due to too much fuel pressure, faulty needle and seat and or float You can sometimes get the tachs to start working again by cycling the cylinder selector switch back and forth but likely need a new tach would leave it disconnected as a bad tach can short out the...
  18. Scott06

    Bad coil?

    You need so e way to test for spark when it stops running. Would check the following when it starts acting up. 12 v on positive side of coil. soark off coil to distributor and from dist to plugs since you say its rich check for fuel dripping down boosters into carb throat, if so measure fuel...
  19. Scott06

    What 6 cylinder Mercury is this?

    Engine is very mechanically reliable if reasonably taken car off. The mc1 outdrive is also good. The issue may face due to age is some parts being no longer available as both the engine and outdrive have been out of production for like 40 years…. You can bolt on a new R/MR/Alpha one gen one...
  20. Scott06

    Bad coil?

    When it dies have you checked for spark with a spark gap tester ? when it dies check to see if you have no spark or no gas
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