Cover elbow leak.

[Hoohaa]

Gday from Quarantine Bay Sydney. It's raining and we are in a nice spot so I thought I might do some maintenance while the weather is crap. I new I had a small leak in the engine cooling system but wasn't quite shore exactly where it was, so I went hunting for it and found it.
My exhaust comes out of the heat exchange vire a rubber pipe and then into a coper elbow and then back to the rubber pipe which runs to the exhaust outlet.
A picture says a thousand words so here it is.
Could someone please firstly let ma know what this coper elbow is called, so I can start searching for a replacement?
Would also appreciate any tips on how or if it is worth repairing.
And a suitable temporary repair. Possibly something to rap around it.
Thanks for your help.
Jeff

Sent from my GT-I9505 using Cruisers Sailing Forum mobile app

[shakey doug]

It looks like the bend has been fabricated using standard plumbing elbows and extended with copper pipe any large plumbing or boiler makers shop should be able to help or try noakes in Berry's Bay.If the leak is a small hole or split use a piece of rubber or similiar under a hose clip, cable tie or wire twitch. Once copper corrodes thru it is nackered, stainless is a good replacement.

[JPA Cate]

Originally Posted by shakey doug

It looks like the bend has been fabricated using standard plumbing elbows and extended with copper pipe any large plumbing or boiler makers shop should be able to help or try noakes in Berry's Bay.If the leak is a small hole or split use a piece of rubber or similiar under a hose clip, cable tie or wire twitch. Once copper corrodes thru it is nackered, stainless is a good replacement.

This quick fix should get you home, Hoohaa, but use two hose clamps, one above, one below the opening. But what he says is true, the elbow needs to be replaced, as it will have many pits just waiting to fail. I agree stainless would be a longer lasting repair than copper again.

Maybe it'll quit raining some day.

Ann

[DeepFrz]

Actually your exhaust comes out of the exhaust manifold in a metal fixture behind the blue shield. The rubber hose on top is where the raw water from the heat exchanger dumps the water into what is called an exhaust injection elbow which cools the exhaust. The rest of the "rubber" and copper elements are just to get the exhaust overboard.

[Hoohaa]

Thanks for the advice. It's a small leak so no probs getting back to my mooring.
I think I will take the elbow off tomorrow and see about getting a stainless replacement.

[Terra Nova]

I would not use stainless.

[Hoohaa]

Why not?

Sent from my GT-I9505 using Cruisers Sailing Forum mobile app

[Cheechako]

Hard to see, but that copper may just be a plumbing "Sweat" fitting or "solder" fitting. If I remember right the type "L" are heavier wall.


SS is often not very good in hot salt water environment and can corrode real fast.

[Arthur Garfield]

@Hoohaa-whatever type metal you use for elbow pipe replacement-go to a muffler/exhaust system shop to bend it for you on their pipe bending machine.
You could have them make a couple extra for spares!


All the Best

[Lepke]

I would go with bronze. Make sure your engine zincs are ok and run a bonding wire to the elbow.

[svadagio]

Have used the fiberglass elbows you can buy at the boat store for years now with good luck. Replaced the steel ones when they went bad. Just be sure the cooling water is not interrupted.
Bob

[Terra Nova]

Originally Posted by Hoohaa

Why not?...

Longevity.

[sy_gilana]

To answer your questions, It's called an elbow. Its purpose is to make a tight bend without kinking (as it would if it was a hose) Temporary repair has been dealt with. I would not replace it with stainless or bronze, I would try to get a GRP elbow. They last forever. Failing that, I would get two Galvanized Steel female elbows with a Barrel Nipple screwed in to each end. Keep one spare and you wont need it.

[Emmalina]

Originally Posted by Terra Nova

Longevity.

MMM my first elbow ( In stanless ) was 1983 the second in 2013 . How do you define longevity ?

[Hoohaa]

Thought I should post an update. this is the offending hole. And the solution.
Thanks for the help. I am installing it today.

Sent from my GT-I9505 using Cruisers Sailing Forum mobile app