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Old 04-07-2013, 12:02 PM   #1
Louie
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Default Short shifter noise

I was wondering if anyone has an idea of where I need to start trouble shooting. I had a kart boy short shifter with bushings installed. I hear a vibrating sound like two nickels vibrating next to each other... It's not the great whine like I am accustomed too. It's only on 5th and 6th gear.

Thanks
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Old 04-07-2013, 12:28 PM   #2
RoadKillDMD
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Might be the spring pin that holds the reverse lockout lever rattling on the shifter. I get a similar noise with my Cobb STS.
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Old 04-07-2013, 12:32 PM   #3
Louie
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Originally Posted by RoadKillDMD View Post
Might be the spring pin that holds the reverse lockout lever rattling on the shifter. I get a similar noise with my Cobb STS.
Any fixes?
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Old 04-07-2013, 12:58 PM   #4
RoadKillDMD
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Well, the stock shift lever has a plastic lining where that pin would come in contact that I would assume is there to prevent this 'rattling' issue from the factory.



I'm not sure how you can line pin hole on the KB shifter without being too ghetto... Maybe a little piece of electrical tape?
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Old 04-07-2013, 01:35 PM   #5
tom@kartboy
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Check the center pivot. might need to regrease the bushing and the outter faces of the bushings. Make sure to torque to 8-10 pounds. any more or any less can induce some funky noises.

Tom
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Old 04-07-2013, 01:50 PM   #6
Louie
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Quote:
Originally Posted by tom@kartboy View Post
Check the center pivot. might need to regrease the bushing and the outter faces of the bushings. Make sure to torque to 8-10 pounds. any more or any less can induce some funky noises.

Tom
Thanks Tom.
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Old 04-09-2013, 04:12 AM   #7
furiouswrx
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Quote:
Originally Posted by tom@kartboy View Post
Check the center pivot. might need to regrease the bushing and the outter faces of the bushings. Make sure to torque to 8-10 pounds. any more or any less can induce some funky noises.

Tom
Hi Tom

I just installed a Kartboy short shifter and front/rear bushings and am hearing a whirring sound when shifting from 1st to 2nd. It sort of sounds like a synchro spooling up, high to low frequency sweep. Only happens for that shift, right before entering 2nd. Sound only started after installing the bushings.

There are a couple threads here like
http://forums.nasioc.com/forums/show....php?t=2230925
that describe the sound but no fixes or explanation. Is this normal? The only way I can get around it is if I momentarily shift into neutral before going into 2nd, but that kind of lengthens the shift time

Thanks
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Old 04-09-2013, 06:13 AM   #8
Louie
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Quote:
Originally Posted by furiouswrx View Post

Hi Tom

I just installed a Kartboy short shifter and front/rear bushings and am hearing a whirring sound when shifting from 1st to 2nd. It sort of sounds like a synchro spooling up, high to low frequency sweep. Only happens for that shift, right before entering 2nd. Sound only started after installing the bushings.

There are a couple threads here like
http://forums.nasioc.com/forums/show....php?t=2230925
that describe the sound but no fixes or explanation. Is this normal? The only way I can get around it is if I momentarily shift into neutral before going into 2nd, but that kind of lengthens the shift time

Thanks
I'm pretty sure that's normal for the urethane bushings. Mine does the same, I've read a lot about that whirring noise.
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Old 04-10-2013, 03:21 AM   #9
furiouswrx
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Quote:
Originally Posted by Louie View Post

I'm pretty sure that's normal for the urethane bushings. Mine does the same, I've read a lot about that whirring noise.
I'm glad to hear that others are experiencing it too. It still kind of makes me uneasy about shifting 1st to 2nd though. Wish I could hear directly from tom@kartboy but I can't seem to PM him directly - forum error says something about him disabling PMs.
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Old 04-10-2013, 06:41 AM   #10
Louie
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Quote:
Originally Posted by furiouswrx View Post

I'm glad to hear that others are experiencing it too. It still kind of makes me uneasy about shifting 1st to 2nd though. Wish I could hear directly from tom@kartboy but I can't seem to PM him directly - forum error says something about him disabling PMs.
I think it's tom@kartboy.com

You might find a phone number on kartboy.com
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Old 04-10-2013, 10:11 AM   #11
Tavery92
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Quote:
Originally Posted by Louie View Post

I'm pretty sure that's normal for the urethane bushings. Mine does the same, I've read a lot about that whirring noise.
Mine does it as well. Along with a rattle in third gear coasting. From what I can tell that outter sleeve on the oem shifter did a lot to dampen noise and vibrations
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Old 04-11-2013, 02:06 AM   #12
02Worx02
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Default Clunk/Grind

I just picked up an 02 WRX with a previously installed KartBoy Short throw that seems to be very noisy going into first, it clunks a bit more than I've come to expect from other makes(Honda, Chevy, etc) and occasionally grinds. Holding the clutch pedal depressed for an extended time seems to MOSTLY remedy the issue. Everything seems to operate properly otherwise... my questions about the durability of this trans have been answered in other threads but I've not seen this question posited, any ideas or a reliable "it's nothing to worry about" would be appreciated.
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Old 04-11-2013, 01:26 PM   #13
Louie
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Quote:
Originally Posted by Tavery92 View Post

Mine does it as well. Along with a rattle in third gear coasting. From what I can tell that outter sleeve on the oem shifter did a lot to dampen noise and vibrations
I took the top part of my shifter apart (the interior I mean). The lock out cable is zip tied and it seems everything is all snugged up tight. No good idea to remedy the noise
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