Joachim B. hat folgendes geschrieben: |
...
My mix of skepticism and fascination with this technology has shifted somewhat towards fascination (thanks to your information). |
Hello Joachim,
healthy skepticism is always good and should not quickly disappear with new technology.
mcgregg hat folgendes geschrieben: |
| New Engine, Old Problem: Timing Belt. This time, the worn-out component is supposed to drive an additional 8 valves. Recommended replacement interval: 60,000 km??? I don't have a problem with the timing belt; it should last at least 200,000 km and 10 years. On my 1980 Passat 1.6l 75 PS (YN), it worked just fine (234,000 km, 13 years, the car was even driven to the scrapyard myself). Perhaps you will object that there was no diesel injection. But where is the progress? The Passat was produced 23 years ago! Incidentally, the recommended replacement interval for the timing belt of the blessed YN: NEVER! |
Hi mcgregg,
1. Vergiss nicht die zusätzlichen Belastungen, denen der Zahnriemen jetzt ausgesetzt ist (im Vergleich zu deinem alten Passat). Diese zusätzlichen Belastungen können auch von einer Kette nicht so einfach ausgeglichen werden! Auch nicht bei CR!
2. Rubber and plastic are subject to significant aging. Or do you also only replace your tires every 200,000 km or 10 years?
Today, tire manufacturers also recommend not driving tires for more than 6 years. Twenty years ago, tire age was not a concern. Even then, it was not possible to determine how old the tires were until the production week/year was printed on the tires in the early 1980s.
3. Was ist die Wechselinterval für den Zahnriemen beim YN, galt dies nur für Taxis? Man ging bei VW davon aus, dass andere Fahrzeuge diese hohen Kilometerleistungen nicht bewältigen könnten.
4. How often have timing belts broken without consequences in the past? Just in my old Jetta (MKB 1.5l 70PS), the timing belt broke twice. In this case, the open valves were not even close to the piston when the engine was running. With diesel engines, it's different. The closing/opening valves come very close to the piston, which is a dangerous situation. With the increasing proportion of diesel engines, the number of destructive timing belt failures has increased. However, I think that the percentage of timing belt failures is not higher than it was 20 years ago.
People just complain about a broken timing belt if "only" the belt is damaged, but those who have a major engine failure will scream and complain.
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