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AQ145 / B230 upgrade

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  • AQ145 / B230 upgrade

    Cooked the engine in my boat (1985) so after some research found the later model Volvo car engine (1994) to be the same, EXCEPT the later engine is loaded with fuel injection and emission stuff.
    Brought an old Volvo and salvaged the engine so;

    !/ The later engine has the bolt holes but not the lever hole for the fuel pump. Do i just "break out" the centre?
    2/ The later engine has heat riser(?) tubes that fit under the exhaust manifold which need blocking off. Welsh plugs of .8"
    may block these off while still looking factory?
    3/ The silent shaft needs replacing to the marine type to gain the drive for the raw water pump - can this be done without
    removing the sump OR is there a "bolt on" adapter available?

    Also can the old engine be removed without pulling the 280 stern drive to bits?

    Thank you for any advice and tips in advance,
    Oh and thanks for letting me join the forum.

    Kiwibob

  • #2
    You have to pull the drive first..... Period

    Look for 1985 vintage volvo motor and you have less modifications to do
    Cheesehead boating the Gulf Coast of FLA 27.51° N, 82.53° W

    1988 Cruisers Rogue 2420 -VP 290 DP now powered by custom 468 - https://forums.iboats.com/forum/owner...988-rogue-2420

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

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

    Comment


    • #3
      Originally posted by Scott Danforth View Post
      You have to pull the drive first..... Period

      Look for 1985 vintage volvo motor and you have less modifications to do
      Not many of them around, as it was the 1995 Volvo was the earliest one for sale here. Don't think its all too bad to swap over. Don't know anything about fuel injection or would have looked at running that on the boat :-)

      Comment


      • #4
        You cant use automotive EFI in a boat. Tgat would be a potential bomb
        Cheesehead boating the Gulf Coast of FLA 27.51° N, 82.53° W

        1988 Cruisers Rogue 2420 -VP 290 DP now powered by custom 468 - https://forums.iboats.com/forum/owner...988-rogue-2420

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

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

        Comment


        • #5
          Originally posted by Scott Danforth View Post
          You cant use automotive EFI in a boat. Tgat would be a potential bomb
          all the later model/ new marine engines are EFI.

          Comment


          • #6
            yes, however they use GM engines and Volvo Penta designed marine EFI. the EFI must be J1171 compliant, and must be fuel safe. in a car, if it leaks fuel, it drops on the ground, and evaporates. in a boat, if it leaks fuel, it drops into the bilge and explodes.
            Cheesehead boating the Gulf Coast of FLA 27.51° N, 82.53° W

            1988 Cruisers Rogue 2420 -VP 290 DP now powered by custom 468 - https://forums.iboats.com/forum/owner...988-rogue-2420

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

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

            Comment


            • #7
              so lots of comments but not a single question answered.

              Comment


              • #8
                the EFI motor most likely does not have the lobe on the cam to run the mechanical fuel pump, so machining out the block may be useless. you will have to pull the motor apart to look

                you will need to strip the engine down to the long-block and build up to a marine motor with all the stuff from your 1985. since you are dealing with a volvo motor that has gone thru a few changes since 1985, you may need to fabricate or modify a bunch of stuff. you cant use any of the automotive stuff on the motor. and you certainly can not use the automotive EFI in a marine environment.

                your in territory that most people dont venture into, so snarky comments wont help. by the time you are done, you may have actually been cheaper to rebuild the 1985 block by the time you are done.
                Cheesehead boating the Gulf Coast of FLA 27.51° N, 82.53° W

                1988 Cruisers Rogue 2420 -VP 290 DP now powered by custom 468 - https://forums.iboats.com/forum/owner...988-rogue-2420

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

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

                Comment


                • #9
                  Hi.

                  I would need to look it up, but I think the engines are very different. If it the old 145 I’m thinking of, it’s a pish Rod engine and a reliable old thing. The slightly newer 4 cylinder car derived model was a terrible thing in a boat. Had cam belt etc and known to fail all too often in a marine environment. Didn’t use them for long after the pripbelms. Stay clear of it. Stick a gm 3.0 in if you can’t fix the old 145.
                  Yes you need to remove the drive.

                  Comment


                  • #10
                    Originally posted by QBhoy View Post
                    Hi.

                    I would need to look it up, but I think the engines are very different. If it the old 145 I’m thinking of, it’s a pish Rod engine and a reliable old thing. The slightly newer 4 cylinder car derived model was a terrible thing in a boat. Had cam belt etc and known to fail all too often in a marine environment. Didn’t use them for long after the pripbelms. Stay clear of it. Stick a gm 3.0 in if you can’t fix the old 145.
                    Yes you need to remove the drive.
                    nah they are both SOHC and both Volvo B23 blocks.

                    Comment


                    • #11
                      Ok. So I looked it up. The AQ145 is not the earlier push rod engine. It’s one of the terrible timing belt and problematic engines. Don’t get another one. You’ll only be adding to its issues with fuel injection too.

                      Get a used 3.0 engine in there. So much better. More robust, better suited to the environment and a tried and tested motor for decade after decade.

                      Comment


                      • #12
                        running the GM 3.0 would require a new PDS housing
                        Cheesehead boating the Gulf Coast of FLA 27.51° N, 82.53° W

                        1988 Cruisers Rogue 2420 -VP 290 DP now powered by custom 468 - https://forums.iboats.com/forum/owner...988-rogue-2420

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

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

                        Comment


                        • #13
                          Originally posted by QBhoy View Post
                          Ok. So I looked it up. The AQ145 is not the earlier push rod engine. It’s one of the terrible timing belt and problematic engines. Don’t get another one. You’ll only be adding to its issues with fuel injection too.

                          Get a used 3.0 engine in there. So much better. More robust, better suited to the environment and a tried and tested motor for decade after decade.
                          Repowering it with anything other that what is in there would cost more than the boats worth.
                          I'll stick with this one and see how we get on.
                          Winter is about on us here so got a bit of time to suss stuff out. :-)

                          Comment


                          • #14
                            Originally posted by kiwibob View Post

                            Repowering it with anything other that what is in there would cost more than the boats worth.
                            I'll stick with this one and see how we get on.
                            Winter is about on us here so got a bit of time to suss stuff out. :-)
                            No worries. Honestly though. Terrible engines for a boat. Just thought I’d mention from experience. Some of the U.K. boat brands went through a stage of fitting these as entry level engines. They soon stopped. Powerful things when they were running. Just that they didn’t agree with the use and conditions a boat sees.

                            Comment


                            • #15
                              Sign up today
                              Originally posted by QBhoy View Post

                              No worries. Honestly though. Terrible engines for a boat. Just thought I’d mention from experience. Some of the U.K. boat brands went through a stage of fitting these as entry level engines. They soon stopped. Powerful things when they were running. Just that they didn’t agree with the use and conditions a boat sees.
                              I can believe that. It has done a good turn in this one.
                              The boats like over 30 years old and as far as I can see its never had any major work done on it. All the pistons etc are std size.

                              I doubt i will buy another.

                              Comment

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