| that the timing belt cover was vacuum sealed. Honestly, someone could theoretically have their car stay idling for years and never drive it and the belt would give out at some point, right?
Nissan didn't put an idle-time spec in the FSM. To expect Nissan to put every possible scenario into the FSM is a ridiculous proposition. Nissan factored many things into the wear of the timing belt (including idle-time and actual time) and the fact is that mileage numbers/time are commonly setup at 12k miles/year. ^THAT is why the timing belt would conveniently be set @ 60k, or 120k, changing the belt appr. every 5 years. In all honesty, I think 5 years is a little on the safe side, especially since these cars aren't generally driven that much, BUT you can't tell me it's a safe bet that a 20 yr old car with only 30k miles on it will get another 30k miles before the next belt change. If held constant @ 30k miles/20 years a Z would be FORTY years old before 1 timing belt change? It wouldn't even get pulleys/seals changed at that point! I'm all for common sense/not needlessly replacing parts Bernie, but to not account for time just because Nissan didn't spell it out for you is silly.
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