"High mean effective pressure (MEP) increases piston and bearing loads, especially at low revs when labouring due to bad driving habits. In some vehicles cooling systems are so marginal that full throttle running should be avoided. Fitment of an aftermarket bumper or spotlights can affect air flow"
Hmm: at low revs! whne turbo is working slowly so pressure is less!
" High MEP increases blow-by, the leakage of combustion gases into the crankcase breather system, causing excessive carbon deposits. If not regularly removed they restrict air intake and increase heat inside the engine. "
Hmm: !? proof? What is regular? every 100k miles? My Audi A4 1.9tdi was ok after 100k....
"Turbo blades can erode and result in overspeeding"
Hmm and so can cambelts fail: does this mean don't buy a car with a camblet?
"Delayed oil and oil filter changes accelerate wear, leading to turbo bearing failure."
True for any car : petrol or diesel , Turbo or not....
"The informed and well-researched report by technical editor Jake Venter in the June issue of South Africa's respected and authoritative Car magazine"
Informed and well-researched? With apologies to South Africans but if this is the best they can do, I feel sorry for the worst....
Rearrange the following words: "carp of piece" to describe the well-researched side of it...
madf
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Madf,
The link I published was a reference to the article by Jake Venter, not the article itself. It is reasonable to reserve judgement on the article until it's published, before leaping to condem the quality of the research it in such colourful terms!
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I've driven or been in several new turbo diesel cars recently and they seem to run at just over 80 degrees C come what may. Some Peugeot and Citroen models have separate cabin heaters because the engine doesn't generate enough heat to warm the cabin in cold weather. This doesn't sound like an overheating problem waiting to happen to me. At least not without some other kind of failure first and that's a problem for any engine, petrol or diesel.
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I think this chap has a serious problem with diesel power and I reckon he has bought a petrol Gti model only to race a diesel engined equivalent and got badly beaten.
My mates hate it when my diesel Merc leaves them standing and I reckon that is this blokes problem.
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OK, I've not seen the article to which the link you posted refers, but the one we have read is a ridiculously hysterical piece of nonesense.
Contains no facts and lots of rubbish. The article would even look bad in Britain's worst Tabloid newspaper. I mean, of course, the Daily Mail.
Andy
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let the turbo cool before switching engine off is good advice but much more a problem for petrol turbo cars. Exhaust temps for petrol are alot higher and spirited driving can result in the turbo glowing red with the heat.
Heard of many turbo failures on petrol engines with oil feeds coked due to this.
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Exactly my point earlier. Diesel turbos operate at much lower temperatures and the advice given in the article/report merely underlines the writer's ignorance.
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Like the SUV issue, probably a quiet week in the local auto world down there and he has to drum up something for his 2,500 words. Bit if alarmism helps to sell.
Round here we call that sort of story "blowing smoke up my (synonym for donkey)"
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madf, I haven't read the article yet (only got the mag this morning) but Venter definitely knows his stuff on most aspects.
If you wish, I can faxyou a copy of the article tomorrow.
Please let me know.
Ian
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Ian,
any chance of it being scanned in and e-mailed?
email on profile OK to use
ciao,
FiF
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Are all the high mileage lorries about to pack up now?
Or is this bloke an absolute muppet?
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Are all the high mileage lorries about to pack up now? Or is this bloke an absolute muppet?
A troll more like IMO.
:-(
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C'Mon,...
I read the article yesterday evening. It is nowhere NEAR as shock-horror is the Dispatch* report makes out, but does raise some worrying issues.
Mainly, if points out that local Turbo Diesels suffer because of:
a) carp fuel
b) lack of servicing/long oil-change intervals (surprise!)
c) The turbo working overtime because of the high altitudes.
d) Working the engine too hard (towing etc) in hot conditions, and then not letting ot cool down
FiF, I'll scan it in later this week, and send over.
*The Dispatch used to be a reasonable paper - it is where Donald Woods of Cry Freedom fame cut his teeth. These days it seems to be a bit of a Daily Mail ...
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Ian,
One of my dad's freinds owns a large haulage company and they run around europe all the time. The servicing on these lorries has gone up from 6,000 mile intervals to 20,000 mile intervals in the past 10 yrs and as he says reliability has also gone up. These lorries go through the Alps, through some dodgy countries where the fuel grade is probably lower than here and the lorries are obviously towing heavy loads.
Surely if turbo diesel engines are suceptable to problems it would show on the lorries that run round Europe.
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