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Volvo 3l. Trying to find TDC. Starter turns engine over too much to land on TDC.

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  • Volvo 3l. Trying to find TDC. Starter turns engine over too much to land on TDC.

    As the title says, I can't see how it is possible to get a socket on the crank nut, with the engine in the boat, to find TDC. Am I missing something? I am using a remote starter.

  • #2
    Use a 15/16th box wrench to rotate the alternator pulley with the spark plugs removed.
    1980 Donzi 18'. 2+3 6.2 MPI Alpha 1

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    • #3
      Originally posted by kenny nunez View Post
      Use a 15/16th box wrench to rotate the alternator pulley with the spark plugs removed.
      I have the manifold removed, which puts the tension on the alternator.

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      • #4
        With the plugs removed, you can wrap the crank pulley with a tie down strap until the hook on the strap can be used with a bar to turn the crank. I use a rubber cork on the #1 cylinder. When it blows out, you know you are on TDC on the compression stroke. Sounds silly but it is pretty foolproof. Dave-R

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        • #5
          Dave-R Pretty cool man! Gonna remember that one...
          _

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          • #6
            Plugs out and the alternator gone, I'd use a strap wrench on the harmonic balancer (crank pulley) as it should be easy to turn over.
            2001 Crestliner SuperHawk 1800, Mercruiser 140HP
            2007 Tracker 1436 jon boat, 7.5HP Force

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            • #7
              Never turn a motor from the crank bolt. Usually damages the crank

              On a 3.0, pull front motor mount, put a few long screws in the balancer hub screw holes and use a pry-bar
              1988 Cruisers Rogue 2420 -VP 290 DP now powered by custom 468 - http://forums.iboats.com/forum/owner...988-rogue-2420

              Past Boats
              1970 Wooster Hellion - Merc 9.8
              2002 SeaRay 190BR - 5.0 - A1G2 - "Cheasheads in Paradise"
              1984 Avanti 170DLI -3.0 stringer- "Ship Happens"

              What’s behind you doesn’t matter.Enzo Ferrari

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              • #8
                make one of these..
                http://static.summitracing.com/globa...-906008_cp.jpg

                I use one of these
                http://www.northerntool.com/shop/too..._content=15233
                Last edited by dennis461; October 3rd, 2017, 08:53 PM.
                Dennis
                20' 1987 Renken Cuddy Cabin
                AQ131C 270 drive
                Southern NJ

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                • #9
                  Sign up today
                  Originally posted by Scott Danforth View Post
                  On a 3.0, pull front motor mount, put a few long screws in the balancer hub screw holes and use a pry-bar
                  Come to think of it, that's how I turned my 3.0L last time I needed to find TDC, through, you don't need to pull the front motor mount to install the bolts.

                  Take a 1 1/2" long bolts and a 1" stacks of washers, and bolt them to the 3 balancer holes, then pry on the stacked washers to turn the engine.

                  2001 Crestliner SuperHawk 1800, Mercruiser 140HP
                  2007 Tracker 1436 jon boat, 7.5HP Force

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