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DIY: Axial flow shifter silencing

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Old Mar 6, 2006 | 09:42 AM
  #1  
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From: Los Alamos, NM
DIY: Axial flow shifter silencing

Hi!

I was one of the "lucky" ones, who received the shifter without the white ring around it, which holds the rubber boot. I installed the shifter anyway and went for a spin. I noticed that the shifter was much noisier than the stock shifter. I also noticed if I try to hold the rubber boot without touching the gear lever shaft, the noise went away. It dawned on me that the rubber bott acts as an amplifier that makes the whining noise comin g from the transmission louder. It behaves as an old graomphone funnel. So I decide that I try to sound-proof my shifter. Here is a short DIY, what I did.

I cut out an octagonal piece out of soft sponge, which is approcimately 2 inches across.
Attached Thumbnails DIY: Axial flow shifter silencing-dsc_0744.jpg   DIY: Axial flow shifter silencing-dsc_0745.jpg  
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Old Mar 6, 2006 | 09:43 AM
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Here is my shifter without the white ring. You can see that the rubber boot is floppy around the shaft.
Attached Thumbnails DIY: Axial flow shifter silencing-dsc_0746.jpg  
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Old Mar 6, 2006 | 09:45 AM
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I pulled the sponge onto the gear lever shaft. Since the shaft is conical, it does not slide dwon to the bottom.
Attached Thumbnails DIY: Axial flow shifter silencing-dsc_0747.jpg  
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Old Mar 6, 2006 | 09:47 AM
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The finished product, with the rubber boot around the sponge. Notice that the boot does not touch the shaft. The sponge also acts as a sound insulator.
I can tell you that my shifter is less noisy with the sponge than the stock shifter.
I hope it helps someone.

Csaba
Attached Thumbnails DIY: Axial flow shifter silencing-dsc_0748.jpg  
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Old Mar 6, 2006 | 09:55 AM
  #5  
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From: Gardena Cali 310
great idea! I might have to look into that. Did you also use teflon tape around the threads?
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Old Mar 6, 2006 | 11:08 AM
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From: CA, Rowland Hts.
hmm... I'm not sure if I had a white ring around mine... I just we about installing whatever there was.
I'll check into this too.
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Old Mar 6, 2006 | 11:33 AM
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I did not use teflon tape.
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Old Mar 6, 2006 | 11:48 AM
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From: Gardena Cali 310
use the teflon tape, that helped out alot, i am also using an aftermarket shift **** so im not sure how much of a difference in sound it will make on yours.
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Old Mar 7, 2006 | 02:05 PM
  #9  
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From: San Jose, CA
Mine came sans the white ring also. Maybe I should try this sponge silencing method, but since I haven't installed mine, I don't know if the sound is really that bad (plus I'm lazy about doing the install twice to test it)
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Old Mar 7, 2006 | 02:51 PM
  #10  
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I first installed the shifter without the sponge and the noise was really loud.
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Old Mar 8, 2006 | 12:07 AM
  #11  
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Originally Posted by Hskr8
unless I'm missing something obvious, the second pic looks like a white ring around the shifter boot.. which I do not believe I have... (not the same as the white ring around the shifter)...
You will have that ring....it's factory.
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Old May 21, 2006 | 07:28 PM
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From: Champaign, IL
PDF file of faffy's instructions

I managed to put faffy's instructions onto a single PDF page for convenient printing.
Attached Files
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Old Sep 7, 2010 | 09:29 PM
  #13  
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From: St. Louis, MO
Kudos bump. I just sent a message to AxialFlow about getting a white ring thingy before seeing this thread. I was actually concerned about the gear oil smell I was observing instead of any tranny noise. Hopefully the smell doesn't permeate the sponge. If it does, then hopefully I can get a ring.
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