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muffbro

  • Karma: +3/-0
Thruhull exhaust hose
« on: June 08, 2013, 07:40:23 am »
The exhaust hoses from snail to thru-hull on my float are old and a real pain to remove and re-install..... Yesterday one started leaking..tried to stop it by swapping ends .... Spinning it etc .. But the rubber is so hard  (and even with the wider T style clamp)  I cannot get it to stop..... That would NOT be cool for it to come apart out on the lake.

I guess I should have replaced them when I had everything apart but...... 

Sigh...

  How about some opinions ( I KNOW there's a couple out there ) on what is a good hose to use.  I have looked online and there are a lot of different kinds, wire type... non wire....including pure silicone.  The silicone are pricy, do they last?  I see them used in automobile Turbo set ups... They are heat resistant, but how about in the long haul??? Do they stand up? To Oil gas etc??? 

Standing by:

  • Boat #1: 1985 Bahner  -  19' 11"
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mobboss

  • Karma: +15/-0
Re: Thruhull exhaust hose
« Reply #1 on: June 08, 2013, 07:50:05 am »
there is a specific hose to use , any really good auto parts store will know which hose is correct.   It does not have to have the wire in it. the stuff i just got from my auto parts store seems to hold up great! It was really expensive !  it was almost a 100.00 bucks for 4ft length of it.  its the black hose with the green strip on it.
  • Boat #1: boat less
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Your Mom

  • Karma: +20/-0
Re: Thruhull exhaust hose
« Reply #2 on: June 08, 2013, 07:51:25 am »
I double clamp on both sides just in case...

ka0tyk

  • Karma: +30/-0
Re: Thruhull exhaust hose
« Reply #3 on: June 08, 2013, 11:47:33 am »
West marine exhaust hose with wire. Double clamped always.
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Rpmsleek

  • Karma: +0/-0
Re: Thruhull exhaust hose
« Reply #4 on: June 08, 2013, 11:40:53 pm »
The back hose with the green stripes is from Gates., pretty cool stuff. Not cheap but cheaper than silicone. Works great
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jrork

  • Karma: +4/-0
Re: Thruhull exhaust hose
« Reply #5 on: June 09, 2013, 08:22:05 am »
More and more of us up here are going with some stainless tubing with a couple of silicone couplers on each end.   Another option for you
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muffbro

  • Karma: +3/-0
Re: Thruhull exhaust hose
« Reply #6 on: June 09, 2013, 10:15:56 am »
More and more of us up here are going with some stainless tubing with a couple of silicone couplers on each end.   Another option for you

That too is an option.
  • Boat #1: 1985 Bahner  -  19' 11"
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MID-LAKE-CRISIS

  • Karma: +3/-0
Re: Thruhull exhaust hose
« Reply #7 on: June 09, 2013, 04:10:33 pm »
 
 in the same boat (so to speak)... anyone use silicone  ?   (tween) risers & tips
« Last Edit: June 09, 2013, 04:19:11 pm by MID-LAKE-CRISIS »
  • Boat #1: 1982 Haskell 17ft
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flatlanderjet

beerjet

  • Karma: +81/-0
Re: Thruhull exhaust hose
« Reply #8 on: June 09, 2013, 04:15:28 pm »
A friend used silicone and melted right through it.

-beerjet-

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i dont but im all for stuffin shit in her ass to make her go away :-*

MID-LAKE-CRISIS

  • Karma: +3/-0
Re: Thruhull exhaust hose
« Reply #9 on: June 09, 2013, 04:20:23 pm »
A friend used silicone and melted right through it.

-beerjet-

  good enough...   thx
  • Boat #1: 1982 Haskell 17ft
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flatlanderjet

beerjet

  • Karma: +81/-0
Re: Thruhull exhaust hose
« Reply #10 on: June 09, 2013, 04:35:27 pm »
Its really not a place you wanna have questionable materials.   

-beerjet-

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i dont but im all for stuffin shit in her ass to make her go away :-*

MID-LAKE-CRISIS

  • Karma: +3/-0
Re: Thruhull exhaust hose
« Reply #11 on: June 09, 2013, 04:42:17 pm »
Its really not a place you wanna have questionable materials.   

-beerjet-
[/quote
 
 hear that, looks cool doesn't mean is cool?]
  • Boat #1: 1982 Haskell 17ft
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muffbro

  • Karma: +3/-0
Re: Thruhull exhaust hose
« Reply #12 on: June 09, 2013, 07:00:00 pm »
A friend used silicone and melted right through it.

-beerjet-

I always thought, and have read, where Silicone is good for upwards of 500 degrees plus....the water/exhaust coming out of my logs is that not that HOT...  I can hold my hand in front of the exhaust when its running and it IS hot....but I also know  its significantly cooler than a dry header system.......

 Sure I'd like 'simple and easy' to attach to the thru hull ..... Those thick azz hoses i have now are difficult to install.....that being said,  That's a big ole hole below the waterline that I want sealed correctly.
« Last Edit: June 10, 2013, 07:35:29 am by muffbro »
  • Boat #1: 1985 Bahner  -  19' 11"
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muffbro

  • Karma: +3/-0
Re: Thruhull exhaust hose
« Reply #13 on: June 10, 2013, 07:34:06 am »
  Ok,...after some research: Silicone has a higher temp rating than the EDPM standard such as Trident / Gates or Shields standard wet exhaust tubing.... Corrugated/wire/ no wire/ soft-wall.
Average for EDPM 250 to 275 degrees.  Silicone: up to 350 degrees.

Silicone is MUCH more expensive....

A different way as previously mentioned on this thread: From snail to silicone coupler to SS tube to silicone coupler to thru hull is workable, but I personally don't like the idea of multiple connections/clamps....  So I am going with either a Shields or Gates soft wall EDMP and double T style clamps on both sides.

Now I just gotta find a place to buy a 3' stick if the stuff ...... Me living 300 miles from the ocean or any real boating centers means more 'net time .....

Thanks for the input guys.....

  • Boat #1: 1985 Bahner  -  19' 11"
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MPKardell

  • Karma: +1/-0
Re: Thruhull exhaust hose
« Reply #14 on: June 11, 2013, 09:34:53 am »
FYI: I bought my 4" silicone hose from McMaster-Carr years ago.  I think you can buy it any length you want.  Sorry, no part #.
  • Boat #1: 1991 Dana 22' day cruiser
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muffbro

  • Karma: +3/-0
Re: Thruhull exhaust hose
« Reply #15 on: June 24, 2013, 04:23:01 pm »
Found a great deal on some Shields exhaust hose on eBay.  Installed and now leak free.  It was a breeze to put on  compared to the old rock solid stuff that was on the boat when I bought it.


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  • Boat #1: 1985 Bahner  -  19' 11"
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muffbro

  • Karma: +3/-0
Re: Thruhull exhaust hose
« Reply #16 on: June 26, 2013, 01:49:34 pm »
OK...here's the final product. 

It was much easier to install the new hose than to remove the old hose...( petrified... rock hard....leaking )
 It was a great price too... less than $40.00 bucks including shipping ( I ordered 3 feet and got just shy of 4')

I also tossed the old worm drive clamps for stainless "T" style clamps I bought at Fastenal.


   UPSIDE DOWN PHOTOS  ???.........    :screwy:
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