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Lower unit bolts torque specs

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  • Lower unit bolts torque specs

    Hello, first post here. Getting ready to do a water pump replacement on a 2008 V150TLR and was wanting to know what the torque specs are for the lower unit bolts. Any help greatly appreciated.

    Thanks
    Ron

  • #2
    I don't have the V motor specs in my limited library. My F150 is 34-35 lb ft. I noticed the Z150 is 29.5. Don't go crazy on the bolt for the trim tab, 30 lb ft will often snap the threaded portion off of it. I go about 25 for that. Maybe Boscoe can add specific info for your engine.

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    • #3
      Originally posted by pstephens46 View Post
      I don't have the V motor specs in my limited library. My F150 is 34-35 lb ft. I noticed the Z150 is 29.5. Don't go crazy on the bolt for the trim tab, 30 lb ft will often snap the threaded portion off of it. I go about 25 for that. Maybe Boscoe can add specific info for your engine.
      29FT LB

      Here ya go. This is from a 2004 V150, same lower unit as your 2008. Don't see why it would be any different?

      [IMG]V150.LU.Torque by Charles Postis, on Flickr[/IMG]
      Chuck,
      1997 Mako 191 w/2001 Yamaha SX150 TXRZ Pushing Her

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      • #4
        Thanks for the information, that chart helps out greatly!!

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        • #5
          Lower Unit Torgue Specs

          I have a 1991 Yamaha ProV150LD does anyone know the lower unit bolts torque specs?

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          • #6
            Originally posted by rcfawjr93 View Post
            I have a 1991 Yamaha ProV150LD does anyone know the lower unit bolts torque specs?
            Doesn't have to be that precise. Go with 30 lb ft.

            You will be fine......

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            • #7
              Originally posted by pstephens46 View Post
              Doesn't have to be that precise. Go with 30 lb ft.

              You will be fine......
              I totally agree!...I don't even own a torque wrench and probably won't get one until the time comes to torque the cylinder head bolts after their removal...which I have no reason or plans to do any time soon!...For the smaller bolts I like a one-handed, 1/4 inch drive ratchet....never broke a bolt yet...knock on wood!

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