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  1. Alumarine

    Which manual covers digital distributorless ignition

    Looks like it's manual #13 part # 90-816462 No mention of doing anything to get into "base timing" DDIS Ignition Timing 1. Connect timing light to No.1 spark plug. 2. Start engine and run at normal idle speed (under 900 RPM 3. Adjust timing by loosening clamp and rotating motion sensor, as...
  2. Alumarine

    Porposing. Can not solve!

    Have you tried moving that trim pin in a notch closer to the transom?
  3. Alumarine

    Surge Brakes

    One way to test them is to jack a wheel off the ground and activate the surge unit manually while spinning the wheel. You can use that technique to bleed them as well. If you're going downhill and try use the brakes you can feel the trailer pushing you if the brakes aren't working.
  4. Alumarine

    Convertible Top

    I picture might help. I have a convertible top and a bimini installed and I can get them out of the way at the transom when folded.
  5. Alumarine

    Help with vessel view

    I'm guessing it takes a bit for the bluetooth to time out so it doesn't lose the connection and have to reconnect if you shut the motor off for a couple of minutes and then restart.
  6. Alumarine

    Parts interchange between chevy smallblock family and mercruiser 140 3.0 liter

    Here's a link to a sealed power catalog you can use to see which parts are compatible. https://archive.org/details/SealedPowerEnginePartsKitsCatalogSP1501Volume11990Earlier2008OCR1090Pages
  7. Alumarine

    Lower Shift Cable Bell Housing Thread Size?

    The housing should be 1/4"-18 NPSF which is a straight pipe thread. I'm not sure about the cable fitting. I just measured the cable fitting and it seems to be 1/4" NPT tapered.
  8. Alumarine

    1975 StarCraft Mariner build "The Unicorn"

    Did you use pan head screws with the lock washers and did you use a flat countersink bit beforehand or just run them in? I like that idea for areas that might need to be accessed.
  9. Alumarine

    Questions regarding tow vehicle

    As KD4UPL says, weigh the thing.
  10. Alumarine

    2021 mercury 4 stroke 115 not turning over

    I was directing my comment to the OP. To clarify what I meant. Cranks but won't start. Turns over and won't start. Same thing.
  11. Alumarine

    Questions regarding tow vehicle

    I don't know about you but if I could lift the tongue on that rig then it's way to little tongue weight. Part or all of your problem could be the tail wagging the dog. Try it with more tongue weight. Either move the boat forward or the axle back.
  12. Alumarine

    2021 mercury 4 stroke 115 not turning over

    If you're asking would not following the written break in procedure explain your starting issue? The answer is no. Like others have said it could be a low battery. fyi cranking and turning over mean the same thing which is the motor is rotating and trying to start. It does not mean the motor...
  13. Alumarine

    Speed of a 21ft Mariner

    I'm not a prop expert but that works out to 8% slip which I think is good. If you went to the 21 at 5400 with 8% slip you would only improve speed by 1mph.
  14. Alumarine

    Speed of a 21ft Mariner

    Nice boat! To answer your speed question you can use a prop calculator. You need your gps speed, rev's and gear ratio. If you provide those someone here can help you out.
  15. Alumarine

    Mercruiser 3.0 squeal keeping engine from starting

    You can put a socket on the alternator nut and rotate the motor. You will probably have to put tension on the belt with your hand to stop it from slipping.
  16. Alumarine

    Carb or worse?

    Have you tried pouring a couple of ounces of good gas down the carb and see if it fires?
  17. Alumarine

    Shorelandr VIN location?

    My experience with several older shorlandr trailers makes me think they were stupid enough to only put the vin on a sticker that gets rubbed off.
  18. Alumarine

    Connect Battery

    I'm guessing it's an older used boat? Hard to say why. Are you sure the black part is part of the cover and not paint? Still best to trace the wire(s) if you're not sure.
  19. Alumarine

    Where to mount my transducer?

    Something like this is handy so you can move the transducer around without drilling new holes. https://www.iboats.com/shop/rig-rite-12-lx4-w-horizontal-transducer-mounting-plate-gray.html
  20. Alumarine

    How can I raise my 1977 1150 Mercury because I want to add oil to the power/trim unit

    The manual tilt valve is on the bottom of the pump. Turn it fully clockwise to tilt the motor up.
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