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What is grinding?

401 views 12 replies 9 participants last post by  AW11ERIC 
#1 ·
What *EXACTLY* makes the grinding noise when I mis-shift, or shift wrong?

I don't really understand the whole clutch, tranny plates, cables, etc deal with manuals. How it all works at least. I want to know what I'm HURTING when I hear that lovely little crunch.

Tonight I was making a turn and tried downshifting into 2nd, CRUNCH! Seems like it's happening more nad more often, but my clutch feels great. I'm doing a transmission drain and fill soon so hopefully it fixes it all. Just wondering though, what am I hurting? The entire transmission? Something that can be fixed simply in parts? Can a single "gear" go bad, but the rest are fine? If so, can I just fix one gear and save moeny, or should I consider a whole new tranny?

Driving normally everything is fine. I can drive for a month and have no problems. It seems that whenever I drive aggresively though, and try to shift "faster"...it wants to get stuck in almost every gear. Almost always going into gear, not out of gear. Mainly in 2nd and 4th gears.
 
#2 ·
when you let the clutch out and your not in gear compleatly then one of the gears is not in contact with the other gear and when your keep trying to put that gear onto that other gear the teeth start to rub oneanother and that makes the grinding noice.

and when your driving aggresivly just hold the clutch in a little longer till you get into that gear
 
#3 ·
Hmm, that seems to make sense. Do you have any pictures of the breakdown of a transmission? Any manual tranny really...showing the gears and such?

Really...just an article explaining the parts, how they interact, etc. I would just like to know. It bugs me driving a manual, and not knowing exactly how everything works.

Also, is it possible to strip the gears of teeth? I'd imagine when draining the fluid I would see bits and pieces fo metal. It didn't grind hard really...I am just paranoid. The instant I heard it grinding I slammed in on the clutch and went back to neutral. Kind of killed my nice little turn haha.
 
#8 ·
squid? said:
when you let the clutch out and your not in gear compleatly then one of the gears is not in contact with the other gear and when your keep trying to put that gear onto that other gear the teeth start to rub oneanother and that makes the grinding noice.

and when your driving aggresivly just hold the clutch in a little longer till you get into that gear
GEARS never actually grind (expect maybe going into reverse) as they are always engaged. Syncros or dog teeth are what make that grinding noise. Read the how stuff works article... it explains it pretty well.
 
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