#121
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In my experience, VERY rarely. Most typically, two or so cylinder's valves just get bent aside (effectively making them stuck open), and maybe put a tiny ding on the top of the corresponding pistons. I think I may have seen one engine that had a hole poked in the piston, out of the countless broken timing belts I've seen. Long story short, if it's a fight between a piston and a valve, the piston wins.
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#122
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He pretty well knows his way around cars, but this winter seemed so long and cold, so who could blame him. |
#123
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I guess it's becoming less relevant, with the industry moving away from timing belts. The main problem is how darn annoying front wheel drive cars are to work on.. I had the timing belt off in my RWD pickup in a few hours. |
#124
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On occasion I've been able to do a chain job preventatively. It's hard to catch though, because it's not as easy as just peeking behind a plastic cover to look at the condition of a belt. :/ It's also not a 'recommended' maintenance, nor is it something the ordinary motorist (or indeed, mechanic) would even consider to be a maintenance item. Last edited by MadMan; 05-08-2018 at 02:45 AM. |
#125
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Thats my "case" for timing belts, at least for OHC applications. as for front wheel drive, that's why I'm in a Miata right now. the timing belt shouldn't be too hard on that one, it was replaced at 80k, and isn't due until 160K.......unless the water pump craps out. |
Audiokarma |
#126
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Oh it shouldn't be too bad. But I would do it at 140k or earlier. In fact, most manufacturers recommend a shorter interval after the first belt. It's typical for it to say at 120k then every 60k afterwards, for example.
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#127
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Mopar typically recommends a timing belt change every 90k or ten years. The average 3.5L will need five timing belt changes during it's lifetime, if you take care of it. Of course I should also mention that it may need seven tranny changes, depending on the model year. UltraDrive could be a real stinker, especially if you used the wrong fluid.
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#128
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#129
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Yeah, the Ultradrive aka A604 is actually a really solid little transmission. They don't even make Dexron 2 anymore, so you'd have to be a special level of incompetent to screw it up these days. And sure they have their problems, but so does literally everything else.
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#130
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Audiokarma |
#131
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Any brands/engines specifically prone to failure? I've seen plenty last a lot longer than 100k, miles, but if that failure prone it sounds like gambling. Sounds like a reasonable case for pushrods, that style of engine lasted great, no fancy cam drive system.. |
#132
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Has anyone mentioned the original timing chain fail when General Motors used nylon timing gears on their very-interfering small-block V8. Not to be outdone, they used the softened camshafts later in the 70's that rounded lobes by 60K miles.
__________________
"When resistors increase in value, they're worthless" -Dave G |
#133
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NICE! |
#134
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I traded it on my 2005 diesel Jeep Liberty which was totaled in Dec. 2009 in a freak accident. |
#135
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What did they do! Bought another GM product! Gluttons for Punishment! |
Audiokarma |
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