SO45DS water muffler exhaust issues

[MalcolmP]

Anyone with a Sun Odyssey 45DS recognise this plastic water muffler moulded for Jeanneau? anyone had problems or changed theirs for a Vetus or other propriety make? Trying to source a replacement ASAP for a friend




OEM might be Bonar plastics?

[ianpowolny]

Guys,

Thanks to Malcolm for his help with this. Emma from Grassi Bateaux of La Rochelle found the parts and will get them to me early next week.

For anyone with a similar problem the large nipple (pt. no. 990515) on the end of muffler is a separate part.

This muffler is used on the 75 & 55 hp engines but sure which model boats.

I'll write a longer report next week on the job. Can't believe how much disassembly is required.

Ian

[vasko]

Ian why you are changing the muffer ? \what are the signs that a muffer need changing ?

[ianpowolny]

Vasko,

When we went back in to the water and started the engine we didn't have any exhaust water from engine stern exhaust; then noticed water coming in to the bilges from the engine compartment.

On expection found the exhaust muffler had holes in it.

Ian

[Tafika II]

We had the same condition with a wet muffler hole (thin wall rototmolded area), but some of the leak was coming from the large threaded hose adaptor with the "O" ring seal. The original wet muffler had a molded in thread. The new one had a brass threaded insert. We replaced the entire wet muffler, large threaded fitting & the "O" ring. No leaks & all is well.
The mechanic of removing the wet muffler is not complicated, but it does require removing the companionway stairs and frame work. I think the job took about 2-3 hours total to remove and reinstall.

[vasko]

May 4, 2017 21:01:43 GMT ianpowolny said:

Vasko,

When we went back in to the water and started the engine we didn't have any exhaust water from engine stern exhaust; then noticed water coming in to the bilges from the engine compartment.

On expection found the exhaust muffler had holes in it.

Ian

Thanks Ian

[ianpowolny]

Vasko,

One thing I forgot to mention is that there were a lot of exhaust fumes from the leak. If this happens to you get the hatches opened and vent the saloon.

All, has anyone fitted a flow sensor to the exhaust system? If so how did you do it and which type did you buy? My mechanic is suggesting this might be a good modification to make.

Thanks Ian

[vasko]

My boat is a bit more noisy from the exhaust then I want.. and was curious can the muffer be a issue..  hence the question...

[ianpowolny]

The replacement exhaust muffler arrived from Jeanneau via Grassi Bateaux, La Rochelle. As you can see the new muffler has a brass insert and we found it was about 15mm longer. Note that the inlet nipple does not come as part of the kit so must be ordered separately. On our 45DS we we had to remove the companion way all the way back to the sole plate support beam in front of the engine. Finding the retaining screws behind the annenuation material was not that easy. Thanks to Rum Johnson of tecno-nautica.com/en/home/ for help with the engine service, finding the problem and installing the muffler.

[3buoys]

May 16, 2017 6:37:45 GMT ianpowolny said:

The replacement exhaust muffler arrived from Jeanneau via Grassi Bateaux, La Rochelle. As you can see the new muffler has a brass insert and we found it was about 15mm longer. Note that the inlet nipple does not come as part of the kit so must be ordered separately. On our 45DS we we had to remove the companion way all the way back to the sole plate support beam in front of the engine. Finding the retaining screws behind the annenuation material was not that easy. Thanks to Rum Johnson of tecno-nautica.com/en/home/ for help with the engine service, finding the problem and installing the muffler.

Hi Ian, so your all up and running now. I bet your glad that's all over with so well done . See you in about two weeks.

Regards Paul

[Janissah]

Ian


The same thing happened to me, my exhaust muffler went. The mechanic just took it out and it was no end of trouble to do so, as its under the engine mount.

What the hell was Jeanneau thinking to install it under there??

Mine was the stainless steel one and it just rotted. 

Your new one seems to be plastic. Is that right? Any idea how much it costs

Thanks
Mario

[ianpowolny]

Hi Mario,

The muffler plus the nipple was €227.88 plus €75.70 for shipping La Rochelle to Portimao, Portugal. I was very impressed by the quality of service we received from Emma at Grassi Bateaux - [e-mail]. Would definitely use them again.

Our muffler was plastic so I can't say if it's a direct replacement for your stainless steel model. I suggest you contact Emma with the dimensions of the s/s version and see how it matches with the plastic one.

I did have to re-drill the forward holding bolt hole. All is good now though.

Is you 45DS 2008?

Ian

[Spritz]

On my 2011 42DS is plastic too. Unfortunately is in the same horrible place of yours, practically under the engine.....

[Janissah]

Mine is stainless steel, will post a picture in a minute

Not having much luck in sourcing it, Emma did reply but hasn't come back with anything yet..



As for jeanneau....they try their best 


Mario

[Janissah]

Anyone know who manufactures the plastic ones?

[ianpowolny]

Here's Emma's number: T. +33 (0)5.46.45.40.06. She speaks good English.

The plastic muffler is a Jeanneau part which I got through Emma direct from the factory at La Rochelle.

Ian

[Janissah]

Ian

Would you have the part numbers handy?

Thanks

Mario

[ianpowolny]

Mario,

Take them from the photos at the top of this thread.

Don't forget the nipple is a separate part and check they include the 'o' ring.

Ian

[Janissah]

Oct 4, 2017 15:40:19 GMT ianpowolny said:

Mario,

Take them from the photos at the top of this thread.

Don't forget the nipple is a separate part and check they include the 'o' ring.

Ian

Thanks my good friend

[andreshs1]

hello guys

do you know if this part will fit a 43DS? 

the local Jeanneau service is trying to push me the old metal one and I tried emailing Emma but I got no response


any help will be appreciated 

cheers 

[tsenator]

andreshs1,

  I would love to know the answer to that question too !    With all these boats having issues with the Stainless Steel mufflers from that era you would think Jeanneau or someone would come up with a better alternative like these plastic/fiberglass ones .

Tom

[windward54]

I was told by Jeanneau that the plastic mufflers won’t fit, and can’t be used as a replacement for the stainless steel muffler.

[alex1949]

Hi all,  Why won't we all ask mother Jeanneau clear and sound : Why do we have to replace 2008 made mufflers so soon !!!!
To my humble opinion it is a real shame no matter what was the reason for that.

[ianpowolny]

tel:[phone]

I think this is the number for Grassi Bateux

[andreshs1]

Hi

I tried contacting her, no reply to several emails

Eventually after lots of consideration and getting a quote for 3000K EUR just for the part, I installed a Vetus NLPH75.

See details here:
jeanneau.proboards.com/thread/2842/replacing-water-muffler-so43ds


Regards