One for the Volvo diesel experts

[pvb]

Excellent! Pleased you eventually got around to checking it!

 

[peteK]

Your diesel expert wasnt much of an expert to not diagnose a blocked exhaust elbow when it was suggested by many on here early on in the postings.

 

[Beneteau381]

Your diesel expert wasnt much of an expert to not diagnose a blocked exhaust elbow when it was suggested by many on here early on in the postings.

Alcaidesa?

 

[scottie]

As I recall blocked exhaust elbow was not a great problem before the MD20XX although rotting exhaust outlet were relatively common and then Yanmar followed on to have similar problems
The confusing thing was that the same elbow was and is used from 10 - 50 HP and the problem manifest it’s self on the lower HP units first so it was simple to discard the possibility of blockage
Exhaust hose implosion due to lack of water was relatively common though
Perhaps the compact size of the Perkins designed elbow was a major factor but it did make for a higher exhaust Height

Of course we all know to check now but when it first occurred similar sagas to your own were not unknown

 

[Bobc]

Your diesel expert wasnt much of an expert to not diagnose a blocked exhaust elbow when it was suggested by many on here early on in the postings.

Indeed, everyone knows that it's one of the first things to check on all modern VP engines that show a lack of performance

 

[peteK]

Mine blocked on a Perkins Perama but knew what it was as it had happened to friends engine.There was someone who replaced the engine for a new one and all it was,was a blocked exhaust elbow.

 

[Bobc]

Mine blocked on a Perkins Perama but knew what it was as it had happened to friends engine.There was someone who replaced the engine for a new one and all it was,was a blocked exhaust elbow.

Some years ago now I had a "Volvo engineer" tell me that I had a blown head gasket, when all it was was the rubber seal inside the header tank filler.

 

[pvb]

I wonder whether the regular pattern of use is a major factor in this "blocked exhaust elbow" occurrence? Lots of sailboat owners pootle around under power, at low revs. I suspect that doesn't help at all.

My old 2003T was 24 years old when I sold the boat, and I'm pretty sure the exhaust elbow had never been off. But I did tend to charge around most of the time if under power.

 

[Bobc]

I wonder whether the regular pattern of use is a major factor in this "blocked exhaust elbow" occurrence? Lots of sailboat owners pootle around under power, at low revs. I suspect that doesn't help at all.

My old 2003T was 24 years old when I sold the boat, and I'm pretty sure the exhaust elbow had never been off. But I did tend to charge around most of the time if under power.

I think you may be right. All manufacturers seem to put engines in boats these days which are far too powerful, and so end up just getting tickled around and not really working up any real temperature. People seem to think that bigger is better, but with a diesel you are better off having a smaller engine and making it work a bit.