Why do older cars make that wind up noise when reversing?
I have always wondered… It was real prevalent on saturns and hondas. They make like a high pitch winding noise and I just wondered why.
Reverse gear is straight cut teeth rather than helical which is quieter.
The reverse gears in manual transmissions have spur gears which are noisier than helical gears used for forward speeds.
Thats the noise the gears make when its only 1 gear.
Would sill be true on most all standard transmission cars.
It's because of the fly wheel
It's not 'older cars'. It's almost all vehicles with manual transmissions.
Straight cut reverse gear in the manual transmission. I remember that sound well. But I'm talking decades ago, before Saturn's and Honda's.
Reverse gear is a straight cut ( spur cut) gear
that type of gear is noisy in operation and that makes for the noise
The output gears of the transmission are designed at angles to created minimal noise at impact when spinning in the forward direction. When spun in the opposite direction they make a harsh impact, but the relative time and speed of impact is so short relative to forward motion that the wear caused by rolling in reverse is minimal.
I've driven Saturn's for over 20 years
They are no noiser then any other brand of automobile
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