Volvo D9/500 my 3rd heat exchanger

[statgar]

Can anyone offer any help with the replacement or repair of my heat exchanger this will be the 3rd unit that has failed by the casing cracking by the mounting web at the aft end. I've checked with Keypart and it seems as though they have now been modified and you have to buy another bracket to mount the modified units, this all comes in about £4000 plus VAT. I guess this is clearly a latent manufacturing defect but as the engines are 10 years old, only 600 hours though, I don't suppose I will get any help from them.

 

[volvopaul]

Can anyone offer any help with the replacement or repair of my heat exchanger this will be the 3rd unit that has failed by the casing cracking by the mounting web at the aft end. I've checked with Keypart and it seems as though they have now been modified and you have to buy another bracket to mount the modified units, this all comes in about £4000 plus VAT. I guess this is clearly a latent manufacturing defect but as the engines are 10 years old, only 600 hours though, I don't suppose I will get any help from them.

Something wrong there, it's years since they failed, I remember them failing on the Broom 450s but not fitted another since .
You must have so,thing else wrong to get through 3 .

 

[statgar]

Thanks volvopaul always good to get 'hands on' Volvo advice. Clearly the problem is not as global as I first thought, it can't be a Fairline problem as they have not modified anything on the engine. My boat is 10 years old and this HE is 7 years old and 400 hours so I guess it is coming up for overhaul anyway I'll just have to bite the bullet.

 

[oldgit]

If this alumimium why cannot it be repaired by welding.
In the past have had some pretty catastrophic damage repaired by local workshop.

 

[volvopaul]

I've just looked at one, the outer alloy housing which is the part that breaks is t available as a separate item , you can only buy it as a whole part , yet the tubestack is available. I'd be complaining to Volvopenta Uk about this before you instruct anyone to purchase and fit another , surely the European 6 year warranty applies plus the fact it's a known fault, don't let VP tell you otherwise.

 

[statgar]

Good point oldgit in fact I had the stbd HE welded in 2013 and it is good so far probably the right thing to do but the boat is in Corfu and I am in the hands of the local VP dealer who will obviously do his best to sell me a new one. I will contact VP volvopaul but I am not hopeful as they only gave me 25% towards a new HE when the boat was only 2 years old with 130 hours back in 2009. Thank you both for your input.