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Appropriate Carb Rebuild Kit?

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  • Appropriate Carb Rebuild Kit?

    I have a 1989 4.3L V6 Mercruiser engine with thunderbolt ignition. The number on the carburetor is 3304-9565, however there is no name on it to identify it. I need to rebuid it, but I am unsure as to what kit is appropriate for this.

    Thanks!


  • #2
    Re: Appropriate Carb Rebuild Kit?

    It's probably a Holley. The Holley number will be on the choke horn, may have to scrape some paint to see it. Alternatively, if you have a factory service manual it may tell you which Holley number they used on that engine. I would advise getting the factory manual that includes the fuel system as it will be invaluable during your rebuild. The difference between it and the aftermarket manuals is significant.

    Full Gallop
    1998 Larson 176 Flyer
    VP 4.3GSLK
    VP PJX PowerJet

    Comment



    • #3
      Re: Appropriate Carb Rebuild Kit?

      Might try using the Quick links on the right of this page
      8)

      Comment



      • #4
        Re: Appropriate Carb Rebuild Kit?

        Originally posted by Blk-n-Blu
        Might try using the Quick links on the right of this page
        8)
        Yeah, didn't think about that but good call. Found this there: http://www.iboats.com/mall/partfinde..._id.895496609/

        That's a reman carb., Sierra #18-7604 and is a 4v Rochester spreadbore. Disregard my post on Holley. Do you have a 2v or 4v. 3304-9656A1 is the 2v and 3304-9565A2 is the 4v.

        If 2v, check this out: http://www.stemtostern.com/catalog/D...ryRefID=444592

        Thus, if 2v, I would think that MER3310-807764A1 is the merc number to use to find the rebuild kit.
        Full Gallop
        1998 Larson 176 Flyer
        VP 4.3GSLK
        VP PJX PowerJet

        Comment



        • #5
          Re: Appropriate Carb Rebuild Kit?

          The link was for the 3304-9354A2 not the 3304-9695. Are these the same or are they different carburetors?

          Thanks!

          Comment



          • #6
            Re: Appropriate Carb Rebuild Kit?

            Please disregard my last post. Brain is asleep. I will have to look again and see if I can tell if it is 2V or 4V? What should I look for other than the number?

            Thanks.

            Comment



            • #7
              Re: Appropriate Carb Rebuild Kit?

              2v or 4v means two or four barrel...
              Full Gallop
              1998 Larson 176 Flyer
              VP 4.3GSLK
              VP PJX PowerJet

              Comment



              • #8
                Re: Appropriate Carb Rebuild Kit?

                You have a 2 barrel Mercarb the carb # should be a 3304-9565A1. The siera kit # is 18-7098 and the float part # is18-7202. Napa should be able to get this kit and float for you.
                Of those who receive good advice, only the wise will profit from it.

                If you need it....Get it
                If you want it....Wait
                If you have it....Flaunt it


                sigpic

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                • #9
                  Re: Appropriate Carb Rebuild Kit?

                  I got it, check this out:
                  http://www.*****************/parts/si...4/80240582.htm
                  Scroll down, looks like your kit is Sierra#18-7098 if 2v or 18-7095 if 4v.

                  edit: Reel Poor types faster than me. Not sure how he knows it's a 2v as both 2v and 4v were used on the 4.3 in '89 (at least in the tables I found) but he is one of the wizards here...
                  Full Gallop
                  1998 Larson 176 Flyer
                  VP 4.3GSLK
                  VP PJX PowerJet

                  Comment



                  • #10
                    Re: Appropriate Carb Rebuild Kit?

                    Thank you Reel Poor and bjcsc. I will call Napa tomorrow and get the kit and float. Wish me luck with the rebuild. Everyone tells me patience and labeling is the way to go. I have a good shop manual as well with good diagrams, so I should be ok. : - /

                    Thanks.

                    Comment



                    • #11
                      Re: Appropriate Carb Rebuild Kit?

                      Carb. rebuilding is not hard, but it is precise. Most people who fail at it do so because they run into something they didn't expect (like the clutch screws in a Holley or gasket they don't have) and they just skip that part. Be thorough and yes, solid DIY practice is using ziplock sandwich bags and a Sharpie, and a dig. camera comes in handy, too.
                      Full Gallop
                      1998 Larson 176 Flyer
                      VP 4.3GSLK
                      VP PJX PowerJet

                      Comment



                      • #12
                        Re: Appropriate Carb Rebuild Kit?

                        You read my mind. I have the ziploc bags, the black sharpie and the digital camera all ready to go.

                        Funny.

                        Comment



                        • #13
                          Re: Appropriate Carb Rebuild Kit?

                          Napa also sells a gallon can of Gunk carb cleaner. I would recommend it. It even has a basket in the can you can put the parts in and soak over night (don't soak plastic or rubber parts). The secret to a good carb rebuild is to get it clean, and an overnight soak is a good first step. If you dont have air to blow the carb out, those small compressed air cans like you would use on your computer keyboard will work great, or a 12 or 16 oz can of spray carb cleaner. you will want to blow through ALL the holes in the carb to make sure they are clear of any debries. Take your time and don't skip any steps.

                          Of those who receive good advice, only the wise will profit from it.

                          If you need it....Get it
                          If you want it....Wait
                          If you have it....Flaunt it


                          sigpic

                          Comment



                          • #14
                            Re: Appropriate Carb Rebuild Kit?

                            Sounds good Reel Poor. I will have to go back and get that can. I just purchased choke and carburetor cleaner.

                            Question: I have disconnected everything from the carb, and have taken off the manifold nuts, but I cannot seem to remove the carb. It is "stuck" to the manifold. I know not to pry it off, so I wanted to see if there is a trick to freeing it. I am assuming that the gasket has just become like a glue between the carb and the manifold.

                            Thanks.

                            Comment



                            • #15
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                              Re: Appropriate Carb Rebuild Kit?

                              I use a rubber mallet to free stuff like that. Works good on risers, too. If you can't get it to budge with a rubber hammer, I have also found that the rubber strap wrenches work great to give you a little leverage. I used a strap wrench to free my main metering body when I rebuilt my carb as it was stuck, too - it didn't take much.

                              Do you have a compressor? If not, you will need canned air as mentioned previously. It's critical to blow clean air through every single tiny passage once you've loosened everything up.
                              Full Gallop
                              1998 Larson 176 Flyer
                              VP 4.3GSLK
                              VP PJX PowerJet

                              Comment


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