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Search: Posts Made By: fxykty
Forum: Engines and Propulsion Systems 14-04-2023, 19:25
Replies: 23
Views: 3,644
Posted By fxykty
Re: Corrosion hole in exhaust elbow

New mixer elbow installed. Will do the other side next.
274053

Close up of the new elbow.
274054

They have a tube within a tube - inner tube is for very hot exhaust gases and outer tube feeds...
Forum: Engines and Propulsion Systems 14-04-2023, 19:20
Replies: 23
Views: 3,644
Posted By fxykty
Forum: Engines and Propulsion Systems 11-04-2023, 03:48
Replies: 23
Views: 3,644
Posted By fxykty
Re: Corrosion hole in exhaust elbow

The temporary patch is set and working to prevent any leaking. I took the elbow off and nothing is visible inside - the soot coating looks solid. So the issue is other unseen corrosion that will make...
Forum: Engines and Propulsion Systems 09-04-2023, 19:00
Replies: 23
Views: 3,644
Posted By fxykty
Re: Corrosion hole in exhaust elbow

Thanks for your comments and the generic cautions - all good things to keep in mind.

Salt water spray isn’t great, but it’s not like that doesn’t happen with splashing and whatever. At least it’s...
Forum: Engines and Propulsion Systems 09-04-2023, 18:55
Replies: 23
Views: 3,644
Posted By fxykty
Forum: Engines and Propulsion Systems 07-04-2023, 02:48
Replies: 23
Views: 3,644
Posted By fxykty
Re: Corrosion hole in exhaust elbow

Yes, the replacements are OEM.

No, we do not bother to flush with fresh water as we are using the engines frequently (generally not more than a fortnight of non use).

The JB Weld held during 10...
Forum: Engines and Propulsion Systems 06-04-2023, 22:03
Replies: 23
Views: 3,644
Posted By fxykty
Corrosion hole in exhaust elbow

We have Nanni diesels in our cat, 35hp each. About 3 years ago we removed and serviced the heat exchangers and replaced the exhaust elbows as they had deep surface rust.

Just noticed that the...
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