Exhaust Pipe Wrap

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  • Bill Fields
    Member
    • Oct 2004
    • 4

    Exhaust Pipe Wrap

    Does anyone have any suggestions as to what to cover the exhaust pipe with to insulate it before the cooling water is added. A marine surveyor indicated that a bare exhaust pipe was a fire hazard. I have been to several auto supply stores to no avail. Thanks Bill Fields S/V La Joie De Vivre
  • JAWS11
    Member
    • Oct 2004
    • 3

    #2
    Originally posted by Bill Fields
    Does anyone have any suggestions as to what to cover the exhaust pipe with to insulate it before the cooling water is added. A marine surveyor indicated that a bare exhaust pipe was a fire hazard. I have been to several auto supply stores to no avail. Thanks Bill Fields S/V La Joie De Vivre
    GO TO YOUR LOCAL NAPA STORE AND ASK FOR A THERMAL WRAP FOR HEAT COST ABOUT A $1.50 PER FOOT AFTER YOU WRAP IT AND START IT BACK UP IT WILL SMELL LIKE IT IS BURNING BUT THE SMELL ONLY LAST ABOUT THREE MINUTES

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    • Bill Fields
      Member
      • Oct 2004
      • 4

      #3
      Exhaust pipe wrap

      Thanks for the tip on the thermal wrap. I will try it. Bill

      Comment

      • dtinder
        Senior Member
        • Oct 2004
        • 27

        #4
        exhaust pipe heat

        After running my engine at the dock yesterday for 8 hrs trying to trace down a
        n intermittant shut down problem (Yes I ran the + lead to the coil direct), I discovered the frwd port side of the cockpit was too hot to touch----Hmmmm--never noticed that befor. I'm off to the NAPA store----tks guys for a good post.

        Re the shut down problem---when I find the problem Don M will have to add another chapter to the book.

        My guess is that I will have to go to the narrowest inlet, on a strong outgoing tide, with 25 kts on the nose to make the darn thing shut down---throw in a few sprotsfishermen that are hooting and hollaring---

        Comment

        • dduelin
          Frequent Contributor
          • Oct 2004
          • 7

          #5
          Pipe Insulation

          When I needed new insulation for the exhaust I went to a wholesale insulation supplier and purchased a roll of 2" wide fiberglass pipe insulation. The whole roll was $20 and was 50 feet long. For what it is worth I use about 20 feet of insulation on the hot section of the riser and secure it with Monel seizing wire. That's about two layers wrapped tight and overlapping. This stuff had some sort of wax or something on it that caused a heck of a stink and a cloud of smoke in the engine compartment the first use, but after that first use it did not recur.

          Comment

          • dtinder
            Senior Member
            • Oct 2004
            • 27

            #6
            hot pipes

            Im still fussing with getting the exhaust pipe wrapped--difficulty finding the stuff at the auto stores----we old guys could have easily found a piece of asbestos---but the EPA cops are on duty. I did find some "header wrap" at one of the local gofast shops---but it was 60 ft and twice as many bucks. I thought about buying the roll and sharing it with the rest of the group---better yet----Don--why not get Ken to stock the stuff--we all could use it and it goes in the same box as all that other stuff we rely upon Ken for--you make a couple of bucks---we save a couple of bucks---and hundreds of A-4's are better suited in dealing with a potential problem--like improperly stowed life jackets that come to roost in the wrong spot.
            Dave

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            • emilk2
              Member
              • Oct 2004
              • 2

              #7
              Originally posted by Bill Fields
              Does anyone have any suggestions as to what to cover the exhaust pipe with to insulate it before the cooling water is added. A marine surveyor indicated that a bare exhaust pipe was a fire hazard. I have been to several auto supply stores to no avail. Thanks Bill Fields S/V La Joie De Vivre
              I bought mine at the local Brewer yard in Branford Ct. Any good yard should have it

              Comment

              • wasielewski
                Member
                • Nov 2004
                • 1

                #8
                Exhaust Insulation

                Not sure of its insulating qualities but a wonderful product to use in this and other applications on an engine (or any pipe on a boat for that matter) is something called X-Treme Tape. Can be bought through Duluth Trading Co. Phone number 800-505-8888 or by going to their website.

                Comment

                • marv33t
                  Member
                  • Oct 2004
                  • 1

                  #9
                  Pipewrap

                  Originally posted by dduelin
                  When I needed new insulation for the exhaust I went to a wholesale insulation supplier and purchased a roll of 2" wide fiberglass pipe insulation. The whole roll was $20 and was 50 feet long. For what it is worth I use about 20 feet of insulation on the hot section of the riser and secure it with Monel seizing wire. That's about two layers wrapped tight and overlapping. This stuff had some sort of wax or something on it that caused a heck of a stink and a cloud of smoke in the engine compartment the first use, but after that first use it did not recur.
                  Auto speed shops are also another source for a good pipe wrap. It is used for header pipe wrap.
                  Marv

                  Comment

                  • ericson_35
                    Senior Member
                    • Oct 2004
                    • 22

                    #10
                    Wrapping Exhaust

                    Pop open the yellow pages, you'll be surprised what you'll find (insulation, etc.). Especially look/call a local truck repair/parts or diesel shop (Caterpillar, etc.) they usually wrap turbo pipes with the stuff and may have short remnants from rolls that are scraps that they'd be happy to give away a few feet at no cost or a few bucks. Don't forget stove/fireplace shops either. They use it on their hot pipes as well.

                    I concur with stainless/monel seizing wiring wrapped tightly around the insulation to keep the wrapping in place. After all, insulation in the bilge doesn't do you any good but plug the bilge pump.

                    John M.

                    Comment

                    • mike7a10
                      Senior Member
                      • Apr 2005
                      • 117

                      #11
                      I am not sure how good this product is but there is a new product carried by West Marine called Hotshield Fiberglass Tape. Page 362 in the 2005 catalog. Looks like it may work OK.

                      Comment

                      • RichardC
                        Member
                        • May 2009
                        • 4

                        #12
                        Exhaust Wrap

                        Hello What are the chances that the exhaust wrap on my recently purchased 1970 Grampian 30 is asbestos? It looks original and is starting to come apart in a couple of spots. Richard

                        Comment

                        • roadnsky
                          Afourian MVP
                          • Dec 2008
                          • 3101

                          #13
                          Originally posted by RichardC View Post
                          What are the chances that the exhaust wrap on my recently purchased 1970 Grampian 30 is asbestos?
                          Chances are VERY high.
                          My slip neighbor just replaced his original wrap (circa 1971) and it was old asbestos.
                          Maybe someone else can give you suggestions of how to handle and clean up the mess...
                          -Jerry
                          -Jerry

                          'Lone Ranger'
                          sigpic
                          1978 RANGER 30

                          Comment

                          • Rick_Powers
                            Senior Member
                            • Dec 2008
                            • 125

                            #14
                            Easy solution for wrap

                            Hello Friends,

                            I needed to replace my exhaust insulation too.

                            I went to the local hardware store and bought simple fiberglass wrap for pipes.

                            About 8" wide in a roll.

                            I wrapped it around the exhaust pipe, then wrapped that with Aluminum foil.

                            Before applying the aluminum foil, I carefully doubled it over itself to give strength.

                            Careful binds with large metal hose clamps made for a nice installation for a very minimum of money spent.

                            Have a great summer of SAILING!

                            -Rick
                            Rick Powers
                            Palo Alto, CA
                            1976 Catalina 27

                            Comment

                            • lat 64
                              Afourian MVP
                              • Oct 2008
                              • 1964

                              #15
                              use the napa stuff

                              I think that standard pipe insulation with fiberglass is not fire proof.
                              The resins that bind the fibers do burn. Try putting a match to what ever you use first.
                              I put some of the hot-rodder header tape on my old ford and it help keep the floor cooler in the hot weather. I remember $30.00 or so . Hot rodders use this stuff because it keeps the gases hot further down the line and that creates less back pressure—more zoom. We don't need that, but it is designed to withstand high heat. It comes with some little band clamps too.

                              Exposure from asbestos won't kill you for at least ten years. No worries

                              Wrap on,

                              Russ
                              sigpic Whiskeyjack a '68 Columbia 36 rebuilt A-4 with 2:1

                              "Since when is napping doing nothing?"

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