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  #1   IP: 38.146.55.125
Old 06-03-2022, 08:16 PM
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southcoasting southcoasting is offline
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Braided stainless as hot exhaust replacement

While putting my engine together today after pairing my exhaust manifold, I pulled the exhaust hose closer only for it to crumble and break. It was an older black pipe type.

In my research to find a replacement, I thought about a stainless welding one or just another black pipe.

I saw somewhere on here (canít find it now) about a replacement hose from McMaster Carr.

Also thinking about one of these braided hoses as it would be an easy install due to being blue to be bent in place.

Anyone have any insights or experience on these?

What do you recommend?
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  #2   IP: 162.245.50.230
Old 06-04-2022, 08:10 AM
Dave Neptune Dave Neptune is online now
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If part of the exhaust pipe has collapsed and crumbled the rest is ready to go and the water injection point is probably plugging up too. Just plain ole time to replace.

Under no condition should you run hose stainless wrapped or not in the hot section! The hose section should be installed well after the water injection and I like to see at least 18" of pipe after the injection point so the exhaust gasses are cool enough not to harm the hose.

No real need to paint the hot section with hi temp header paint as the hot section fails from the inside out. Besides the hot section should be wrapped to just past the water injection point as well.

Dave Neptune
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Old 06-04-2022, 12:28 PM
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Quote:
Originally Posted by Dave Neptune View Post
If part of the exhaust pipe has collapsed and crumbled the rest is ready to go and the water injection point is probably plugging up too. Just plain ole time to replace.

Under no condition should you run hose stainless wrapped or not in the hot section! The hose section should be installed well after the water injection and I like to see at least 18" of pipe after the injection point so the exhaust gasses are cool enough not to harm the hose.

No real need to paint the hot section with hi temp header paint as the hot section fails from the inside out. Besides the hot section should be wrapped to just past the water injection point as well.

Dave Neptune
I think we are talking braided stainless designed for an exhaust, not Aeroquip style rubber hoses with stainless braid - or at least I hope so
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Old 06-05-2022, 10:26 AM
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Quote:
Originally Posted by southcoasting View Post
...
I saw somewhere on here (canít find it now) about a replacement hose from McMaster Carr. ...
McMaster Carr sells stainless plumbing pipe and fittings, including schedule 80 and 316 SS. Assembling a hot section from these is no different than buliding one from black iron pipe. Its more expensive, but lasts longer. I did mine this way 10 years and 8000 nm ago, and it has been trouble free.

https://www.moyermarineforum.com/for...php?albumid=73
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  #5   IP: 38.146.55.125
Old 06-05-2022, 09:53 PM
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Quote:
Originally Posted by edwardc View Post
McMaster Carr sells stainless plumbing pipe and fittings, including schedule 80 and 316 SS. Assembling a hot section from these is no different than buliding one from black iron pipe. Its more expensive, but lasts longer. I did mine this way 10 years and 8000 nm ago, and it has been trouble free.

https://www.moyermarineforum.com/for...php?albumid=73
Oh wow. Interesting. Did not know they had standard stainless too.

Yes, I was referring to a braided stainless style that I saw some one else post about here a bit back.

I will just go with good ole iron as itís easy to find locally and and I need to fix this asap.

Thanks guys!
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