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Car Forum / Volkswagen / Water Cooled Volkswagen Cars / June 2008Fatal flaw in VW diesel engines
Timing belt. When it skips or breaks your engine's toast. Needs redesign for cam drive through gears or roller chain. Il mittente di questo messaggio|The sender address of this non corrisponde ad un utente |message is not related to a real reale ma all'indirizzo fittizio|person but to a fake address of an di un sistema anonimizzatore |anonymous system Per maggiori informazioni |For more info https://www.mixmaster.it Well I guess every manufacturer out there is turning out engines with a fatal flaw. Many modern engines, including both diesel and gasoline from every? manufacturer are "Interference" type and when that belt breaks so goes the engine. Every one of them comes with a maintenance schedule and on that schedule is a recommended timing belt change, usually 60,000 to 120,000 miles or X number of months which ever comes first. I take it your timing belt broke? If so how many miles on the car? how long since the last timing belt change? It is not a flaw, it is just one choice of designs for an engine were there are tradeoffs. The list of manufacturers turning out those defective engines include Yugo, Porsche, Lexus, Alpha Romao, Ford, GM and the list goes on. Check out: http://www.theautoshop.com/timing.html > Timing belt. When it skips or breaks your engine's toast. > [quoted text clipped - 6 lines] > Per maggiori informazioni |For more info > https://www.mixmaster.it  SignatureJoseph Meehan Dia 's Muire duit The only flaw is the idiot not changing the belt on time. LOL > Timing belt. When it skips or breaks your engine's toast. > [quoted text clipped - 6 lines] > Per maggiori informazioni |For more info > https://www.mixmaster.it > The only flaw is the idiot not changing the belt on time. LOL x2. Due to diesel's high compression ratios, I'd be surprised if any diesel engine out there was non-interference if the belt breaks. >> The only flaw is the idiot not changing the belt on time. LOL > [quoted text clipped - 27 lines] >customers and diming them to VW to void warranties later. Just bad service >in general. I didn't want to rant today. So Bye. >The only flaw is the idiot not changing the belt on time. LOL Unfortunately, that's not true... My GTI was fine, but on my Porsche, roughly 3k miles before the 60k interval, the belt broke. We had been thru a series of bad belts where they kept replacing the belt at the adjustment time (either the 2k or 15k interval), and they thought this belt was good, but it wasn't as good as thought... Now days I'm a belt wussie and I have it checked every 10k miles instead of using 15k intervals as it was a very expensive repair... I don't let it get close anymore... SignatureJohn Nelson ----------------------------------------------------------------------------- Chicago Area Paddling/Fishing Page http://www.chicagopaddling.org http://www.chicagofishing.org (A Non-Commercial Web Site: No Sponsors, No Paid Ads and Nothing to Sell) I would not put much faith into that visual check. Timing belts generally look like new the day before they break. >>The only flaw is the idiot not changing the belt on time. LOL > [quoted text clipped - 13 lines] > > I don't let it get close anymore... SignatureJoseph Meehan Dia 's Muire duit yep > I would not put much faith into that visual check. Timing belts > generally look like new the day before they break. [quoted text clipped - 16 lines] >> >> I don't let it get close anymore... > I would not put much faith into that visual check. Timing belts >generally look like new the day before they break. Well, in every case when they were replacing what they felt were bad belts they were fraying before hitting 2k miles (I think they replaced 1 at the 15k mark but most were 2k and out). SignatureJohn Nelson ----------------------------------------------------------------------------- Chicago Area Paddling/Fishing Page http://www.chicagopaddling.org http://www.chicagofishing.org (A Non-Commercial Web Site: No Sponsors, No Paid Ads and Nothing to Sell) I noticed that too with only the interference engines, new looking then snap! Well maybe the early diesels would show signs of wear (cracking) on the outside. I have not had to repair a diesel engine with a snapped belt. ;-) Not sure about the TDIs, but I would also change their belts after XXK miles The 16V timing belts should be changed at 40K miles IMHO. They may look great and then snap. Only twice have I changed them and there was no engine damage. I have not seen many new looking 8V gas timing belts that just snap. Well there was one that lost some of it's teeth, but it was getting up there in mileage, like 160,000 miles. 8^) Signaturelater, dave (One out of many daves) >> I would not put much faith into that visual check. Timing belts >>generally look like new the day before they break. > > Well, in every case when they were replacing what they felt were bad belts > they were fraying before hitting 2k miles (I think they replaced 1 at the > 15k mark but most were 2k and out). My 1986 Jetta was a non-interference engine, but I was always religious belt inspection/replacement. The Jetta's replacement is a (non-VW - sorry!) diesel, and requires the usual religious checks and replacements. One saving grace is that while the Mitsubishi 4D56T (a '92 L300 Delica, in this case) is very much an interference engine, the valves are vertical in the head, and the usual consequence of a broken timing belt is broken rocker arms. No bent valves or anything. Laura Halliday VE7LDH "Non sequitur. Your ACKS are Grid: CN89mg uncoordinated." ICBM: 49 16.05 N 122 56.92 W - Nomad the Network Engineer > Timing belt. When it skips or breaks your engine's toast. > [quoted text clipped - 6 lines] > Per maggiori informazioni |For more info > https://www.mixmaster.it Well... There is a truism in about any industry: You can have it cheap, you can have it good, you can have it fast. Pick any two. In the case of diesel engines - inherently more expensive than equivalent-displacement gasoline engines - the choice is only between cheap and good. Mercedes uses chains, even in their present generation of TDI engines. They ain't nohow cheap either. Most other larger diesels use chains or gears. Not all, however. VW uses belts. That cuts a *BIG CHUNK* out of the cost of the engine - short-run savings. And a big chunk out of the weight of the engine - long-run savings. You, the owner, are required to subsidize those savings by paying for belt replacements at regular and specified intervals - and keeping a record of said changes for warranty purposes. You got it cheap, so qwitcherbitchin and suck it up. VW has a fatal flaw - If the oil is never changed or checked, their engines sieze. They need to design an engine that does not require oil... GAAAAAAaaaaaaaaaaaaaa!!! Peter Wieck Melrose Park, PA Even a chain is not a guarantee. I worked at an MB dealer for 7 years & changed PLENTY of chains & chain guides on diesels because they were worn out & in danger of breaking. It was a gravy job though if you just needed to change the chain. On May 13, 8:45 pm, George Orwell <nob...@mixmaster.it> wrote: > Timing belt. When it skips or breaks your engine's toast. > [quoted text clipped - 6 lines] > Per maggiori informazioni |For more info > https://www.mixmaster.it Well... There is a truism in about any industry: You can have it cheap, you can have it good, you can have it fast. Pick any two. In the case of diesel engines - inherently more expensive than equivalent-displacement gasoline engines - the choice is only between cheap and good. Mercedes uses chains, even in their present generation of TDI engines. They ain't nohow cheap either. Most other larger diesels use chains or gears. Not all, however. VW uses belts. That cuts a *BIG CHUNK* out of the cost of the engine - short-run savings. And a big chunk out of the weight of the engine - long-run savings. You, the owner, are required to subsidize those savings by paying for belt replacements at regular and specified intervals - and keeping a record of said changes for warranty purposes. You got it cheap, so qwitcherbitchin and suck it up. VW has a fatal flaw - If the oil is never changed or checked, their engines sieze. They need to design an engine that does not require oil... GAAAAAAaaaaaaaaaaaaaa!!! Peter Wieck Melrose Park, PA > Timing belt. When it skips or breaks your engine's toast. > [quoted text clipped - 6 lines] > Per maggiori informazioni |For more info > https://www.mixmaster.it A flaw in many modern high HP engines, which is a terrible problem if they are of the interference type. Inadequate maintenance leads to inadequate engine life. What does the next chapter of your Cars for Dummies say? >> Timing belt. When it skips or breaks your engine's toast. >> > A flaw in many modern high HP engines, which is a terrible problem if > they are of the interference type. Inadequate maintenance leads to > inadequate engine life. So, since the spark timing is all computerized, why isn't the valve timing? Why can't they use spring-return solenoids and eliminate the whole mess? ...Sean. >>> Timing belt. When it skips or breaks your engine's toast. >>> [quoted text clipped - 6 lines] > >...Sean. Cost.
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