Posted by notjustair on December 18, 2013 at 15:34:30 from (174.238.66.172):
I've never understood this. I consider myself pretty savvy, but this one stumps me.
A starter is just a high torque electric motor. If you bench test it you get an electric motor in a vise. A little whirling noise but that's it.
Why is it that changing a starter can completely change the way something sounds when it starts? I'm not talking about cranking speed. I'm talking about sound while the engine is revolving.
If an engine cranks slower or faster (depending on the charge of the battery) it sounds basically the same just the speed changes. If you put a new or rebuilt starter in something it can totally change the way it sounds to the point that you wouldn't recognize it's your vehicle if you weren't turning the key.
I'll never forget how much my dad's friend's 68 Chevy pickup changed when he put a new starter on it. It was so destinctive with the original. I was disappointed with the new sound.
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