question for manual transmission - Toyota Nation Forum : Toyota Car and Truck Forums

rice · 11-11-2005, 10:14 PM

you know that sound when you are in reverse in a manual transmission car, is it ok to entirely let go of the clutch and just press down on the gas and completely drive in reverse?? will it do any harms to the clutch, tranny? the reverse sound will stay constant, and it sounds even more when you press down on the gas, is this normal? or shouldn't you be in reverse too long in a manual car? thanks

***REN69*** · 11-11-2005, 10:23 PM

He's trying to do backwards drifting.. gives you the RWD feel.

BTW all cars make that sound.

freakinbox · 11-11-2005, 10:37 PM

I never thought anything of it, reversing in a big parking lot? or when my road is empty... my trans is just screaming lol I love the reverse sound

***REN69*** · 11-11-2005, 10:39 PM

I had the pleasure

of owning a 92 Jetta for a couple of months, thing used to go CLUNK CLUNK CLUNK in reverse.. LOL

rice · 11-11-2005, 11:30 PM

well.....i was backing out, and felt like backing out real fast, so i just kinda floored the gas, glad to hear it wont hurt my car or anything becuz of that sound

anyways, REN, are you sure all cars make that noise? because i dont hear that high pitch whiring sound when i'm in reverse in an automatic car

RadRacer3 · 11-12-2005, 02:57 AM

The sound is caused due to straight-cut gears for reverse rather than the helical gears for all your forward gears. If you like that sound so much, just replace all your gears with straight cut gears.

The reason for the sound is because with straight cut gears, the teeth are only in contact with each other for a small portion of rotation. When the slave gear comes in contact with the powered gear, there is noise generated by the engaging contact. This is amplified by the idler gear
Helical gears are always in contact with each other, so little noise is generated.

***REN69*** · 11-12-2005, 03:05 AM

Quote:

Originally Posted by rice

well.....i was backing out, and felt like backing out real fast, so i just kinda floored the gas, glad to hear it wont hurt my car or anything becuz of that sound

anyways, REN, are you sure all cars make that noise? because i dont hear that high pitch whiring sound when i'm in reverse in an automatic car

Correction all MANUAL cars make that sound.