Welcome Guest - Sign Up today
Welcome Guest - Sign Up today

Announcement

Collapse
No announcement yet.

1990 force 120hp outboard HELP!

Collapse
X
  • Filter
  • Time
  • Show
Clear All
new posts

  • #31
    Goodmorning campers!
    Well after finally breaking one bolt on thermostat housing and two more trying to take the water jacket off im almost ready to start thinking about putting it all back together; after re tapping the busted screws. All I need to know is how carefull one needs to be when cleaning the power head/around the cylinders. How do you keep debris from entering and getting lost behind the pistons. Using a small and medium size wire brush until I find my wire wheel that's missing in action at the moment. I have air hose to blast out debris but I feel I may not be able to get it all out...?

    Comment


    • #32
      I use a long skinny screwdriver and compressed air.
      You'll probably never get it all out anyway??
      Most crud gets pushed through during normal running.
      The flush with clean water(hose) can help get the rest.
      Very important to flush after EVERY use.


      Buy American made Cars and Trucks!!!Towing insurance for a boat,a GREAT thing.
      ​Tools to make my life easier: Battery tester, die grinder, temp.gun, compression tester, DVA meter.

      In Scenic , Beautiful San Sebastian by the sea Florida

      88 Bayliner 21CC 2001 Mercury 225 HP EFI

      Comment


      • #33
        Yeah, I used a drill bit and comp air, along with some of my Polish engeneering and got it all back together yesterday. I always flushed after being out on salt but I cannot speak for previous owner. I plan on checking comp and spark again after I get home from work in a few hours. Thanks again for all advise. I feel there’s more to this story though...I think I may have an electrical issue; just from thinking about how the engine behaved before it died the last time..

        Comment


        • #34
          Let us know how it runs?
          For ignition problems, outboardignition.com
          They're pretty good.
          If you have an aftermarket stator? the test results for
          the stator will be different than the OEM stator.


          Buy American made Cars and Trucks!!!Towing insurance for a boat,a GREAT thing.
          ​Tools to make my life easier: Battery tester, die grinder, temp.gun, compression tester, DVA meter.

          In Scenic , Beautiful San Sebastian by the sea Florida

          88 Bayliner 21CC 2001 Mercury 225 HP EFI

          Comment


          • #35
            Well, after trying to start it; same thing; just very sluggish to turn over; like the started just didn’t have the juice to turn it. So I decided to take the started off and investigate. It was held together by dust and corrosion. I found a close by merc mechanic and I’m picking the new starter and solenoid up today. I also have a marine mechanic coming by today so we will see...

            Comment


            • #36
              You probably don't need a solenoid.
              The starter is easily rebuilt, I think this site sells the brushes??
              The starter can drag because the cable's bad, a bad connection or a weak battery.
              Even the lower unit can cause the drag if the bearings have rusted??
              You do another compression test?

              Sent you a PM
              Last edited by jerryjerry05; January 9th, 2019, 04:45 AM.


              Buy American made Cars and Trucks!!!Towing insurance for a boat,a GREAT thing.
              ​Tools to make my life easier: Battery tester, die grinder, temp.gun, compression tester, DVA meter.

              In Scenic , Beautiful San Sebastian by the sea Florida

              88 Bayliner 21CC 2001 Mercury 225 HP EFI

              Comment


              • #37
                Thanks jerryjerry
                we actually got it to start and run for about a minute yesterday but had to shut it down because I noticed water spraying out of where the head gasket and head meet near the bottom of the lowest cylinder. We figured it was a under tourqued bolts so I took it off and plan on redoing with the right tourquege. Is it normal for it to pull water into the cylinder though?

                Comment


                • #38
                  Yes if the torque isn't right it can draw water in.
                  You compare the old gasket with the new?
                  Some aftermarket don't match and not seal.

                  Make sure the head and block aren't warped??
                  A straight edge or a piece of glass held up against the surfaces will tell.

                  In some cases you might need to use silicone on the gasket.
                  Make sure the surfaces are DRY and no oil when reinstalling the gasket.


                  Buy American made Cars and Trucks!!!Towing insurance for a boat,a GREAT thing.
                  ​Tools to make my life easier: Battery tester, die grinder, temp.gun, compression tester, DVA meter.

                  In Scenic , Beautiful San Sebastian by the sea Florida

                  88 Bayliner 21CC 2001 Mercury 225 HP EFI

                  Comment


                  • #39
                    Thanks jerryjerry
                    i got hung up at work yesterday so no progress on the Yaht but maybe today I’ll get a few hours to mess with it. My buddy has got a tourque wrench and I’ve got the manual with the sequence and torque specs. The exiting part was that we actually got it to start and stay running. There are some other issues which are eating at me but first things first them on to fine tuning .
                    you ain’t got a rectifier laying around for this thing do ya? Have a great day and thank you for your help

                    Comment


                    • #40
                      So after retorquing the head down yesterday I went and bought a brand new marine battery today, put it in and all Im getting is a spinning starter; not engaging...seems like a voltage draw or drop. any ideas?

                      Comment


                      • #41
                        New marine battery???
                        Deep cycle???
                        Don't use a deep cycle.
                        They will work but your charging system isn't designed to charge them.
                        Can cause problems after a while.


                        Spinning starter: battery hooked up backwards?? (been done a lot)(my very first boat )
                        The Bendix on the top of the starter might need grease?
                        Lift it up and clean the screw threads with a wire brush.
                        Then lightly grease the threads.
                        Too much grease/oil can cause the rubber in the Bendix to fail.

                        I might have a rectifier?? let me look.
                        Send me a pm with your address.

                        Now that it's running? clean the carbs, clean the recirculation system.
                        Then a can of starting fluid, while running, spray around the intake side of the motor.
                        If the spray makes any difference then it 's sucking air and needs to be resealed.


                        Buy American made Cars and Trucks!!!Towing insurance for a boat,a GREAT thing.
                        ​Tools to make my life easier: Battery tester, die grinder, temp.gun, compression tester, DVA meter.

                        In Scenic , Beautiful San Sebastian by the sea Florida

                        88 Bayliner 21CC 2001 Mercury 225 HP EFI

                        Comment


                        • #42
                          Thanks

                          the starter is brand new and already fired it up once before I re re did the head gasket again; this time right. Brand new marine battery. Seems like a voltage drop somewhere. I’ve sent you a pm-

                          Comment


                          • #43
                            Brand new starter or battery?? means nothing.
                            The "new" crap from china is just that "CRAP"
                            Seen them bad right out of the box.
                            Battery's too.

                            Do another compression test.

                            Replace the cables with new #4 or #2 cables.
                            You change the oil in the lower unit?
                            Sometimes they get water and it rusts bearings and they can slow the turning.
                            If everything else shows OK??
                            Drop the lower and then try turning it over.

                            A deep cycle will still turn the motor but not as good.
                            You need at least a 450CCA or better I had 800CCA's for my starting battery's.
                            One 800 has enough power to start any motor and can operate radios and depth finder all day,
                            without draining the battery.


                            Buy American made Cars and Trucks!!!Towing insurance for a boat,a GREAT thing.
                            ​Tools to make my life easier: Battery tester, die grinder, temp.gun, compression tester, DVA meter.

                            In Scenic , Beautiful San Sebastian by the sea Florida

                            88 Bayliner 21CC 2001 Mercury 225 HP EFI

                            Comment


                            • #44
                              The rectifier:
                              I have one.
                              Sent it today.

                              The part costs $10 and shipping about $5

                              Instead of paying me. I usually ask that whoever I sell these things to, spend the $15 at a local pet shelter.
                              Take them $15-20 worth of food or supplies.
                              If you don't want to do that?? then you can send me $50 and I'll get it to the shelter.
                              So far no-one has sent me any $$

                              If I'm breaking any rules about selling on here? I apologize and please remove it and we can
                              work it out through PM's


                              Buy American made Cars and Trucks!!!Towing insurance for a boat,a GREAT thing.
                              ​Tools to make my life easier: Battery tester, die grinder, temp.gun, compression tester, DVA meter.

                              In Scenic , Beautiful San Sebastian by the sea Florida

                              88 Bayliner 21CC 2001 Mercury 225 HP EFI

                              Comment


                              • #45
                                Sign up today
                                Wow you’re the man!!
                                I will definitely do that..!
                                as of right now: I did buy a new started and as I said it just spins; the bendix is not engaging. I kept old starter and swapped it out and it does the same thing. Brand new marine battery(SuperStart) MCA@32degreesF =1000, not deep cycle. Cleaned pretty much all contacts and ground points. At this point I’m thinking it’s something to do with ignition switch?

                                Comment

                                Working...
                                X