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The Terminator
Terminator Talk
Bringing the 4lb Caged lower back from the Dead?
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<blockquote data-quote="MalcolmV8" data-source="post: 15042339" data-attributes="member: 8854"><p>I don't agree with that if that is indeed what was said. If you look at the caged setup its more than just rubber bushings to absorb shock load or vibration. The caged lower pulley actually runs on the caged piece on a bearing and not on the crank shaft. A shaft then runs through the center of that lower pulley from the balancer behind it to transfer power to it or turn it. Essentially that lower pulley is unable to put any side loads on the crankshaft at all.</p><p></p><p>Once people delete that setup and have a pulley running directly off the balancer then sideways load of the serpentine belt now pulls on the crankshaft and supposably that flex is what causes oil pump gears to break. In extreme cases where the crank snout snaps I guess your guess is as good as mine as to what exactly did it.</p><p></p><p>Personally I'm not fully buying the whole speed up and slow down theory myself. I mean what do you think happens on the other end of the crank when people wrap up 5k RPMs and dump their clutch? That's heck of a lot more shock load or speed up / down than revving the engine with the supercharger. Just my thoughts.</p></blockquote><p></p>
[QUOTE="MalcolmV8, post: 15042339, member: 8854"] I don't agree with that if that is indeed what was said. If you look at the caged setup its more than just rubber bushings to absorb shock load or vibration. The caged lower pulley actually runs on the caged piece on a bearing and not on the crank shaft. A shaft then runs through the center of that lower pulley from the balancer behind it to transfer power to it or turn it. Essentially that lower pulley is unable to put any side loads on the crankshaft at all. Once people delete that setup and have a pulley running directly off the balancer then sideways load of the serpentine belt now pulls on the crankshaft and supposably that flex is what causes oil pump gears to break. In extreme cases where the crank snout snaps I guess your guess is as good as mine as to what exactly did it. Personally I'm not fully buying the whole speed up and slow down theory myself. I mean what do you think happens on the other end of the crank when people wrap up 5k RPMs and dump their clutch? That's heck of a lot more shock load or speed up / down than revving the engine with the supercharger. Just my thoughts. [/QUOTE]
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Bringing the 4lb Caged lower back from the Dead?
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