Exhaust hose lifespan?

xyachtdave

xyachtdave

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Could any of the knowledgable forum members give an indication of a good innings for an exhaust hose please?

I'm assuming at 19 years old my installation is nearing the end of its life and was wondering what to expect from it in the future? Whilst I've got the momentum sorting some other bits out I might attack this too.

Google for once doesn't have any threads from YBW at the top of the search!
 
xyachtdave said:
Could any of the knowledgable forum members give an indication of a good innings for an exhaust hose please?

I'm assuming at 19 years old my installation is nearing the end of its life and was wondering what to expect from it in the future? Whilst I've got the momentum sorting some other bits out I might attack this too.

Google for once doesn't have any threads from YBW at the top of the search!
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Don't have a defined life and could last many more years. Main problem that is not obvious from external inspection is delamination of the inner plys, but you usually get warning of this such as excess back pressure affecting smooth running or poor starting.
 
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xyachtdave said:
Could any of the knowledgable forum members give an indication of a good innings for an exhaust hose please?

I'm assuming at 19 years old my installation is nearing the end of its life and was wondering what to expect from it in the future? Whilst I've got the momentum sorting some other bits out I might attack this too.

Google for once doesn't have any threads from YBW at the top of the search!
Click to expand...
On my Bene 381 it was 10 years old when I bought her. I changed it because chafing had exposed some of the steel reinforcing. It started to rust and was delaminating.
Cheap enough and easy to do.
S
 
Mine failed due to bad routing meaning the engine vibes stressed a small(ish) bend, and chafe on a bulkhead.
The long run after the water trap seems to be fine years later.
 
Mine leaked at one point after about 28 years. The cause was that it was a short length connecting the silencer to the skin fitting. Movement of the silencer had led to a sort of fatigue fracture of the rubber and reinforcement. I replaced it all but the majority looked OK for further use.
 
No, there isn't an accepted average lifespan for the hose as in a good installation it will go on indefinitely, in a poor one it will fail, It wil also dpend on how much cooling you get from the water injection and the salinity or purity of the water. The proper, purpose built hose is quite pricey until you consider that it will last for decades, but if you're revamping that area or fitting a new engine then it's a good time to replace it. Most fittings will be hard to access and you ca expect some skinned knuckles and a fair bit of cursing as you try to force the new hose through a small opening... At the end it gives a smug feeling that only a boat owner with a new exhaust hose could possibly understand.

Rob.
 
PCUK said:
Mine is still OK after27 years.
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I like the sound of this.....

pvb said:
I think that, barring faults causing overheating, most exhaust hoses outlast the engines!
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.....and this!

rob2 said:
At the end it gives a smug feeling that only a boat owner with a new exhaust hose could possibly understand.

Rob.
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That's a feeling I think I'd like...

peteK said:
When you look at the price of exhaust hose you me have second thoughts about replacement.
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...but not sure I can afford it!


Thanks for the replies everyone - much appreciated.

Dave
 
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