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Replacement Parts Heavier than original


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I have recently replaced a couple of parts under the hood of my 93 STS 4.6L and have found that the new replacement parts are heavier. I replaced the alternator and the belt tensioner with dealer parts. The alternator seemed a slight bit heavier. The new belt tensioner I noticed used a metal pulley assembly instead of the original plastic one. I believe the metal pulley was the factor in the additional weight increase.

The car is quite heavy on its own overall and if one is concerned about performance/time trials, these replacement parts will drag us back somemore. I thought we were moving towards lighter, stronger materials in most of our car parts. Anyone else noticed this?? :rolleyes:





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I think you have discovered the second law of engineering...

2) If it breaks... make it bigger! :lol:

Of course the third law

3) If it doesn't break... make it smaller...

And my personal favorite... the First Law of Engineering

1) If it doesn't fit... FORCE it!


Easin' down the highway in a new Cadillac,

I had a fine fox in front, I had three more in the back

ZZTOP, I'm Bad I'm Nationwide


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