Rebuild step 1

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  • P30inbuffalo
    Senior Member
    • Jan 2011
    • 38

    #46
    Originally posted by ndutton View Post
    In my recent engine rewire I prefabricated a harness using the attached drawing. Note that the drawing has features specific to my installation so there may be wiring shown that's not necessary for others. I made measurements as to lengths from connection to connection and scribbled them on the drawing as a layout tool. I drove nails into my workbench top to use as measurement posts and off I went. The junctions shown were soldered and insulated with shrink tube. I finished it up by encasing the whole thing in split loom.
    Do you have any pics of the completed installation? I would love to see this.
    Pearson 30
    Lake Erie - Buffalo

    "For every complex problem there is an answer that is clear, simple, and wrong."
    -H. L. Mencken

    "My experience with engines is that if you depend on them they fail you, but if it just doesn't matter, they serve you."
    -Frank Wightman

    “The world has achieved brilliance without wisdom, power without conscience. Ours is a world of nuclear giants and ethical infants. We know more about war than we know about peace, more about killing than we know about living."
    -Gen. Omar Bradley

    Comment

    • edwardc
      Afourian MVP
      • Aug 2009
      • 2511

      #47
      Originally posted by P30inbuffalo View Post
      Maybe tinned wire is overkill?
      _IF_ you properly heat-shrink-seal every end _AND_ you get no nicks in the insulation, then untinned is probably ok. But who can guarantee that? I prefer to spend a little more on tinned and take a "belt & suspenders" approach.

      But there's another very good reason to use _marine grade_ tinned wire. Marine grade wire uses much finer strands than automotive wire. It also uses a different insulation that is slightly thicker but much softer. The end result of both of these is that marine grade wire is much more flexible. This becomes important when routing large bundles of wire in a tight space, or when routing heavy battery and starter cables.
      @(^.^)@ Ed
      1977 Pearson P-323 "Dolce Vita"
      with rebuilt Atomic-4

      sigpic

      Comment

      • P30inbuffalo
        Senior Member
        • Jan 2011
        • 38

        #48
        Tappet replacement?

        I have noticed some wear on top and bottom of a couple tappets- in the first photo the top of the closer tappet is scored in a circular pattern. In the second the bottom of one tappet has some weird wear almost like an inclusion in the metal.
        Should I:
        A. Dont be concerned
        B. Machine the surfaces that are questionable
        C. replace any questionable tappets
        D. Replace all the tappets

        I don't want to overthink all of this but I want to do it right.
        Attached Files
        Pearson 30
        Lake Erie - Buffalo

        "For every complex problem there is an answer that is clear, simple, and wrong."
        -H. L. Mencken

        "My experience with engines is that if you depend on them they fail you, but if it just doesn't matter, they serve you."
        -Frank Wightman

        “The world has achieved brilliance without wisdom, power without conscience. Ours is a world of nuclear giants and ethical infants. We know more about war than we know about peace, more about killing than we know about living."
        -Gen. Omar Bradley

        Comment

        • lat 64
          Afourian MVP
          • Oct 2008
          • 1994

          #49
          Those are not too bad yet. probably won't make a hoot of difference in running. It looks like the vlave lash may have been a little loose. The circular pattern is from the tappet rotating in it's bore. This is normal.
          A machine shop with the right attachment to their valve grinding machine can recondition these for you. Don't try it yourself; It has to be absolutivly spot-on done right
          sigpic Whiskeyjack a '68 Columbia 36 rebuilt A-4 with 2:1

          "Since when is napping doing nothing?"

          Comment

          • Laker
            Senior Member
            • Sep 2010
            • 458

            #50
            Niel ,

            THANK YOU !!! Now I can come out of the closet - I am a TINLESS Afourian !

            I used the same logic - the original wire was not tinned and was relatively intact after 45 years , just rat-nested and FUBARed beyond hope , so I tore it out. I'm 59 , so I think my new wire will outlast me.

            Still coming down from Super Bowl ,

            Laker
            1966 Columbia 34 SABINA

            Comment

            • ndutton
              Afourian MVP
              • May 2009
              • 9776

              #51
              Originally posted by P30inbuffalo View Post
              Do you have any pics of the completed installation? I would love to see this.
              I haven't taken any pictures yet but I will next time at the boat.

              To qualify my blasphemy somewhat, if I were planning on blue water cruising I'd have nothing but tinned wire onboard, no question whatsoever.
              Neil
              1977 Catalina 30
              San Pedro, California
              prior boats 1987 Westsail 32, 1970 Catalina 22
              Had my hands in a few others

              Comment

              • roadnsky
                Afourian MVP
                • Dec 2008
                • 3127

                #52
                Originally posted by P30inbuffalo View Post
                I'm thinking it makes complete sense to add an oil filter system like the kit for sale through MMI. Does anyone have experience doing this? A former auto mechanic friend of mine was in disbelief when I told him the engine had no oil filter.
                Read thru this thread...
                -Jerry

                'Lone Ranger'
                sigpic
                1978 RANGER 30

                Comment

                • ndutton
                  Afourian MVP
                  • May 2009
                  • 9776

                  #53
                  Originally posted by P30inbuffalo View Post
                  Do you have any pics of the completed installation? I would love to see this.
                  Here are a few pics. I apologize for the poor quality, I really tucked the harness out of sight so getting any pics was a challenge.


                  Click image for larger version

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                  Fuel polishing/filter purging/fuel transfer switch on the upper left, oil pressure sender, safety switch, alarm sender at the lower center.


                  Click image for larger version

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                  Click image for larger version

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                  Backside of instrument panel, harness in black split loom
                  Neil
                  1977 Catalina 30
                  San Pedro, California
                  prior boats 1987 Westsail 32, 1970 Catalina 22
                  Had my hands in a few others

                  Comment

                  • P30inbuffalo
                    Senior Member
                    • Jan 2011
                    • 38

                    #54
                    disagreeing

                    Originally posted by roadnsky View Post
                    Thanks Jerry, quite a range of opinions. I think for me the "the less dirt the better" theory works best, I will be adding the filter. I don't yet understand the flow of oil through the engine as it is designed and if there's a way to improve on the Indigo kit, several people have misgivings about how much oil actually would flow through the filter and how effective the flow would render the filtering. (Where the oil is drawn from etc.) I will definitely be studying up on this.
                    Pearson 30
                    Lake Erie - Buffalo

                    "For every complex problem there is an answer that is clear, simple, and wrong."
                    -H. L. Mencken

                    "My experience with engines is that if you depend on them they fail you, but if it just doesn't matter, they serve you."
                    -Frank Wightman

                    “The world has achieved brilliance without wisdom, power without conscience. Ours is a world of nuclear giants and ethical infants. We know more about war than we know about peace, more about killing than we know about living."
                    -Gen. Omar Bradley

                    Comment

                    • P30inbuffalo
                      Senior Member
                      • Jan 2011
                      • 38

                      #55
                      Originally posted by ndutton View Post
                      Here are a few pics. I apologize for the poor quality, I really tucked the harness out of sight so getting any pics was a challenge.
                      Thanks for the pictures Neil. I think I saw that panel on another post, incredible job. For my engine compartment it seems like it will take hours just to trace where all the wires originate and terminate. Not sure how to approach this, just dive in I guess.
                      Pearson 30
                      Lake Erie - Buffalo

                      "For every complex problem there is an answer that is clear, simple, and wrong."
                      -H. L. Mencken

                      "My experience with engines is that if you depend on them they fail you, but if it just doesn't matter, they serve you."
                      -Frank Wightman

                      “The world has achieved brilliance without wisdom, power without conscience. Ours is a world of nuclear giants and ethical infants. We know more about war than we know about peace, more about killing than we know about living."
                      -Gen. Omar Bradley

                      Comment

                      • roadnsky
                        Afourian MVP
                        • Dec 2008
                        • 3127

                        #56
                        Originally posted by P30inbuffalo View Post
                        ...Not sure how to approach this, just dive in I guess.
                        Exactly!
                        It's worth it...
                        -Jerry

                        'Lone Ranger'
                        sigpic
                        1978 RANGER 30

                        Comment

                        • P30inbuffalo
                          Senior Member
                          • Jan 2011
                          • 38

                          #57
                          Crank hard to turn

                          I am re-assembling the engine at this point and after I have installed 2 pistons I can no longer turn the crank by hand. It turns very freely without the rods attached. I noticed that the manual says the crank should be hand-turnable after the rods are attached.

                          My cylinders are bored and honed .020 over, I have new pistons .020 over, and new rings .020 over. Is this OK or should I stop at this point?

                          Thanks
                          Pearson 30
                          Lake Erie - Buffalo

                          "For every complex problem there is an answer that is clear, simple, and wrong."
                          -H. L. Mencken

                          "My experience with engines is that if you depend on them they fail you, but if it just doesn't matter, they serve you."
                          -Frank Wightman

                          “The world has achieved brilliance without wisdom, power without conscience. Ours is a world of nuclear giants and ethical infants. We know more about war than we know about peace, more about killing than we know about living."
                          -Gen. Omar Bradley

                          Comment

                          • Will Jacocks
                            Senior Member
                            • May 2010
                            • 133

                            #58
                            Is it necessary to do the pistons .020 over if you are using the rings? I always thought you can use the same pistons, just do the rings .020 over?

                            Pull the pistons, check the rings fitting inside the sleeve for clearance. There is supposed to be a tiny gap where the rings touch together. You do this without the piston to check for fit. If too tight the shop did something wrong.

                            Comment

                            • ILikeRust
                              Afourian MVP
                              • Sep 2010
                              • 2212

                              #59
                              Originally posted by P30inbuffalo View Post
                              I am re-assembling the engine at this point and after I have installed 2 pistons I can no longer turn the crank by hand.

                              Check to make sure you have not installed the rod caps backwards. The number stamped on the side on the bottom end of the rod and the number stamped on the side of the cap must be on the same side - so that the number on the rod is right above the number on the cap.

                              Also make sure you've got the pistons in facing the right direction - the arrows on top of the piston that say "front" point towards the reversing gear, although number 1 cylinder is the one closest to the flywheel.

                              And yes, STOP until you get this figured out. I just replaced all of my bearings and rings, with stock standard size, all four are in and the head is on and I can turn the whole thing by hand without an inordinate effort. However, when I was first reassembling, I put the first two in and then couldn't turn the crank, and that is when I discovered I had put the caps on backwards.
                              - Bill T.
                              - Richmond, VA

                              Relentless pursuer of lost causes

                              Comment

                              • P30inbuffalo
                                Senior Member
                                • Jan 2011
                                • 38

                                #60
                                Originally posted by ILikeRust View Post
                                Check to make sure you have not installed the rod caps backwards.
                                Thanks, that was it. 3 out of four were backwards.

                                UH-OH this doesn't bode well for the remainder of the work...
                                Last edited by P30inbuffalo; 05-21-2011, 04:52 PM.
                                Pearson 30
                                Lake Erie - Buffalo

                                "For every complex problem there is an answer that is clear, simple, and wrong."
                                -H. L. Mencken

                                "My experience with engines is that if you depend on them they fail you, but if it just doesn't matter, they serve you."
                                -Frank Wightman

                                “The world has achieved brilliance without wisdom, power without conscience. Ours is a world of nuclear giants and ethical infants. We know more about war than we know about peace, more about killing than we know about living."
                                -Gen. Omar Bradley

                                Comment

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