Re: [OMC-Boats] Exhaust hose question

These are pre-formed hoses and it will be a lot easier if you can find some NOS or equivalent. I didn't have much difficulty finding them <2 years ago so I'd think you could still find them with a little effort. Its always better to use the part meant for the application rather than a substitute that may not have the same temperature rating, chemical compatibility, structure, durability, etc. The wire (or fabric) ribbings can serve multiple purposes, depending on the application. For exhaust or coolant water outlets, not only shape retention, but also resistance to bursting; for water inlets, they prevent the hoses from collapsing from the suction. Cutting corners can lead to very unpleasant results, that's why we go to such efforts to grade and rate materials and parts. If an application specifies a bolt grade, min. operating temperature, burst rating, spark/flame resistance, etc., you could be risking great bodily harm not to adhere to it.

  ----- Original Message -----
  From: BLDFW
  To: Evinrude & Johnson Boats of the 1960's and 70's
  Sent: Monday, May 18, 2009 6:09 PM
  Subject: Re: [OMC-Boats] Exhaust hose question

        Using the wire version would make sense as the non-wire version on there did indeed have a crimp in it that reduced the diamater to about half. Not sure why the port side had to be redone but it would appear that while they tried, it wasn't fully successful. The starboard side appears to be original or at least older than the port side and not of the same manufacturer.

        I used the same leverage logic and undid the 90' elbow, attached the hose to both the elbow and the outdrive housing but it didn't work. Still about 1" too short. It sounds like I may have to use the wire version anyway and use your suggestion to unbolt the entire manifold and use that as leverage to get it to bend. I should do the starboard side to but I'm leaning towards that "if it ain't broke, don't fix it" saying.

        -Bill

        --- On Mon, 5/18/09, Kenneth Gullicksen <kag@...> wrote:

          From: Kenneth Gullicksen <kag@...>
          Subject: Re: [OMC-Boats] Exhaust hose question
          To: "Evinrude & Johnson Boats of the 1960's and 70's" <omc-boats@...>
          Date: Monday, May 18, 2009, 4:41 PM

            I am willing to stand corrected but I believe the wire is to help the hose hold its shape, i.e. not crimp thereby blocking the passage when bent.
            One trick I have used in bending is to put it on the manifold (or whatever) when the manifold is off the engine (i.e. attach both ends). Then reinstall the manifold on the engine. It gives you more leverage and means you don't have to get a bent end on, which can be difficult. Of course I was putting on new manifolds at the time. If I had to take them off just to put on the hose I might feel differently. (I was also dealing with short lengths of four inch hose, which are very difficult to bend the 90 degrees I needed.)

----------------------------------------------------------------------
          From: omc-boats-bounces@... [mailto:omc-boats-bounces@...] On Behalf Of BLDFW
          Sent: Monday, May 18, 2009 4:57 PM
          To: OMC Boats
          Subject: [OMC-Boats] Exhaust hose question

                Ok guys. Need some feedback....

                Anyone recently replace their exhaust hose on their V6? The hose that was on mine has proven to be too short. I went to West Marine and was advised it was the non-wire type and that they could order it but it would be a week. When questioned about an alternative source they sent me to another marine shop but they didn't carry that particular size. My buddy Jon mentioned a local hose dealer so I called them. They have the wire version on hand but not the non-wire.

                I might be under the misimpression that I can't use the wired version as it will be too stiff to bend the 60degrees or so to meet up to the manifold. What have you guys used when replacing your hoses??

                Thanks

                -Bill
                Dallas, TX
                1970 Evinrude Explorer - 155 Buick V6 OMC Sterndrive
                http://www.photobucket.com/evinrude_explorer

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Received on Monday, 18 May 2009