What does the gear select damper do? - Toyota Yaris Forums

CrankyOldMan · 07-29-2014, 12:05 PM

I'm almost done rebuilding my Frankenstein gearbox, and it occurred to me that I don't really understand what the damper on the gear select shaft does. I mean, I can piece together that it dampens something, but is it a NVH reduction device or does it actually do some work when changing gears? The Celica and Matrix gearboxes had them, but they were very different. I.e. one was somewhat-asymmetrical and the other was completely-asymmetrical, whereas the Yaris/xB has an almost-symmetrical damper.

If it's only there to provide resistance at the shifter--increased shift effort--then I may just run without it!

CTScott · 07-29-2014, 12:41 PM

Off of the tranny, what does that big ol' chunk of metal weigh?

CrankyOldMan · 07-29-2014, 02:42 PM

Just over 2 lbs.

CTScott · 07-29-2014, 02:45 PM

Quote:

Originally Posted by CrankyOldMan

Just over 2 lbs.

Ah, not as heavy as I thought. I suspect that its purpose is to dampen vibration through the cable to the shifter, and possibly to assist with shifting as the momentum of it would help with fully engaging a position. The shape is probably just based on what's around it once the tranny is mounted in the engine bay.

CrankyOldMan · 07-29-2014, 04:04 PM

That's what I was thinking, but it helps to have someone else articulate it. I'm not worried about NVH, but there's the issue of dust protection for that end of the shifter: the bellows isn't sealed by the damper, but it looks like it keeps it in place (more or less).

07-29-2014, 12:05 PM	#1
CrankyOldMan 2ZR swap. DO IT! Ask how! View User's Garage Drives: 09 Meteoric Metallic HB Join Date: Feb 2011 Location: West Michigan Posts: 2,333	What does the gear select damper do? I'm almost done rebuilding my Frankenstein gearbox, and it occurred to me that I don't really understand what the damper on the gear select shaft does. I mean, I can piece together that it dampens something, but is it a NVH reduction device or does it actually do some work when changing gears? The Celica and Matrix gearboxes had them, but they were very different. I.e. one was somewhat-asymmetrical and the other was completely-asymmetrical, whereas the Yaris/xB has an almost-symmetrical damper. If it's only there to provide resistance at the shifter--increased shift effort--then I may just run without it!

07-29-2014, 12:41 PM	#2
CTScott ULTIMATE View User's Garage Drives: 09 5dr LB, 2x 08 3dr LB Join Date: Oct 2008 Location: USA, CT Posts: 13,460	Off of the tranny, what does that big ol' chunk of metal weigh? __________________

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07-29-2014, 02:42 PM	#3
CrankyOldMan 2ZR swap. DO IT! Ask how! View User's Garage Drives: 09 Meteoric Metallic HB Join Date: Feb 2011 Location: West Michigan Posts: 2,333	Just over 2 lbs.

07-29-2014, 04:04 PM	#5
CrankyOldMan 2ZR swap. DO IT! Ask how! View User's Garage Drives: 09 Meteoric Metallic HB Join Date: Feb 2011 Location: West Michigan Posts: 2,333	That's what I was thinking, but it helps to have someone else articulate it. I'm not worried about NVH, but there's the issue of dust protection for that end of the shifter: the bellows isn't sealed by the damper, but it looks like it keeps it in place (more or less).