spannerman
regular
Reged: 30/11/2002
Posts: 1035
Loc: Stavanger, Norway
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Well now we have got an answer from Volvo about the 36 odd failures we have experienced along the west coast of Norway, and seems unique to our part of the world as they reckon they don't get failures on the eastern (Oslo) side or in Sweden.
They say its the blend our local refineries are producing. Its 'dry' as they put it so they recommend owners use diesel additive to 'sweeten' the fuel, a bit like using Redex in petrol in the old days.
Apparently the detonation is very hard on the injector nozzles and it causes them to crack or fall off causing either mechanical damage or cylinder bore washing resulting in worn cylinders and overpressure in the sump resulting in loss of oil through the engine breather, which I can confirm as we had a D6 dump 15 of its 20 litres in the bilge before the death rattle set in.
Watch this space....!
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S28
regular
Reged: 19/09/2002
Posts: 3976
Loc: South Coast
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I can understand that up to a point, but why does it only affect the newer D-series models, and not the older engines?
Higher injection pressures, shorter combustion times, higher compression ratios?
Shouldn't an injector nozzle be used to things going "bang" very close to it?
dv.
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KevB
regular
Reged: 04/07/2001
Posts: 5358
Loc: London
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Didn't volvo have to re-map the ecu's on the D series over here to run on our red diesel?
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Nirvana
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DAKA
regular
Reged: 07/01/2005
Posts: 3404
Loc: Nomadic
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Link to issues here for anyone not familiar
http://www.batliv.com/wip4/bildekarusell.epl?id=179395&offset=3
If they blow so quickly with dodgy fuel, doesnt it mean that they will blow in the UK and elsewhere as they get older ?
eg
If they blow with in a year on slightly different fuel
they will blow after 5 years with quality fuel that is left to degrade in the bottom of a 5 year old fuel tank especially a boat that is not used much over the winter .
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Take a tour of Felix
Lazy Git's search engine
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spannerman
regular
Reged: 30/11/2002
Posts: 1035
Loc: Stavanger, Norway
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Yes the new D series works at 1900 bar which is much higher than the old mechanical systems.
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volvopaul
regular
Reged: 01/04/2007
Posts: 716
Loc: midlands
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My only opinion of these new engines is "Ive seen it coming for a long time" as they are tested at the factory on clean road spec fuel I also think 435 hp is too much for the design and block capacity. Enough said .....
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RogerRat
regular
Reged: 30/11/2005
Posts: 1848
Loc: Camberley / Hayling
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Quote:
I also think 435 hp is too much for the design and block capacity...
What do you think is enough from this block then? I have 350s' and I'm starting to wonder.
Currently, 'Houston - has a problem'  with a bearing failure which Volvo say is a 'one off' and not heard of before on D6. This is at the drive plate end damaging the bell housing but not the leg U/J. Had problems getting parts from Sweden because that had not supplied them before for D6 which sort of confirms their surprise at this problem.
For the record, Volvo have been extrmely helpful on this, constant liaison and really pulling their fingers out to help, parts arrive on Monday! They couldn't have done more, so a big thank you there. 
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Now where did I leave that spare Bloo LED?
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S28
regular
Reged: 19/09/2002
Posts: 3976
Loc: South Coast
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It's great to hear that Volvo are pulling out the stops for you. The weather is a bit hopeless this weekend anyway. Hope she gets fixed soon.
>What do you think is enough from this block then? I have 350s' and I'm starting to wonder.
Being as the old TAMD63P delivered 370hp from 5.5L, I don't see how 350/370hp from the same sized block is "pushing the block". Someone else made this point and complained that this "wasn't progress". I don't know, there's no pleasing some people 
dv.
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