mr.hicksta Posted January 17, 2012 Share Posted January 17, 2012 Okay my Kartboy STS was one of the first mods installed on my LGT. Over the course of last year it seems to have developed a mean rattle while in 5th gear. I took out the metal ring and dremmeled out the corner where it appeared to be making contact with the STS. On top of that I threw a few layers of duck tape around the metal as some makeshift padding. Well today while driving to work that damn rattlesnake in my shifter boot was going wild. WTF . I've read a couple threads about various STS installs so I have a couple ideas about what to check, but I figured I'd float my situation to see if anyone has a possible solution. Would it be worth switching to a Cobb STS or would I likely have similar results? Link to comment Share on other sites More sharing options...
matt Posted January 18, 2012 Share Posted January 18, 2012 Did you put in polyurethane shift linkage bushings? If so make sure they're still snug. Those often don't fit quite right in the first place and will wear out over time regardless. I got awful rattles from ill-fitting poly shifter bushings on a stock 6MT STS. Stiffer drivetrain mounts cleaned most of the rattling up but it still rattles a bit at high RPM. I'm not saying bushings are your problem, just something to look into. Link to comment Share on other sites More sharing options...
mr.hicksta Posted January 18, 2012 Author Share Posted January 18, 2012 Thanks! That's actually what I'm going to check tonight. I have KB front and rear poly bushings and they were installed almost two years ago so I'm hoping that's the issue. Link to comment Share on other sites More sharing options...
mr.hicksta Posted January 22, 2012 Author Share Posted January 22, 2012 Little update to this situation. I checked the bushings and everything was as it should be. I tossed a little Super Lube on them just in case, but unfortunately the rattle is still there. I took everything off (shifter surround, and rubber boot) and did some driving with a friend trying to pinpoint the source of the noise. It actually appears to be the shift knob, which is odd because it screwed all the way down and is NOT loose at all. Either way, I have another shift knob coming (not because of the rattle) so I may try to add some sort of insulation to reduce the noise. Link to comment Share on other sites More sharing options...
citka Posted January 22, 2012 Share Posted January 22, 2012 Is the reatiner clip snug in it's recess? if it's not, the shifter may rattle in the housing... Link to comment Share on other sites More sharing options...
mr.hicksta Posted January 23, 2012 Author Share Posted January 23, 2012 Is the reatiner clip snug in it's recess? if it's not, the shifter may rattle in the housing... Are you referring to the snap ring? Link to comment Share on other sites More sharing options...
citka Posted January 23, 2012 Share Posted January 23, 2012 Yeah. Link to comment Share on other sites More sharing options...
mr.hicksta Posted January 23, 2012 Author Share Posted January 23, 2012 It looks secure, but I'll check it out tomorrow Link to comment Share on other sites More sharing options...
TheDon427 Posted April 29, 2012 Share Posted April 29, 2012 Any luck with this? I just installed the Kartboy short throw shifter tonight and noticed the reverse lockout ring rattles quite a bit now. It has slight play in it and rattles as you drive. I need to figure out how to fix it. Let me know if you come across a solution. Thanks. Link to comment Share on other sites More sharing options...
iNVAR Posted May 2, 2012 Share Posted May 2, 2012 No one ever believes me when I tell them it's the shift knob amplifying the drivetrain noise. I have the stock Subaru Momo round metal shift knob. It rattles when tightened all the way down. I completely removed the knob and drove around. Drivetrain noise is significantly less pronounced. I also tried screwing it all the way down, and then backing it back up about 3 full turns. Rattle is significantly less pronounced as well. i believe the rattle is a result of the shifter rod hitting the edge of the knob (metal on metal) where it threads in. I'm thinking of wrapping some teflon or something else in there to prevent that from happening, but the clearance is pretty tight in there, but just loose enough to rattle. I suppose I could just replace the knob completely with something else too. The stock Subaru leather knob didn't rattle, but didn't look anywhere near as nice as the metal round one I have now. Link to comment Share on other sites More sharing options...
.Catalyst. Posted May 3, 2012 Share Posted May 3, 2012 No one ever believes me when I tell them it's the shift knob amplifying the drivetrain noise. I have the stock Subaru Momo round metal shift knob. It rattles when tightened all the way down. I completely removed the knob and drove around. Drivetrain noise is significantly less pronounced. I also tried screwing it all the way down, and then backing it back up about 3 full turns. Rattle is significantly less pronounced as well. i believe the rattle is a result of the shifter rod hitting the edge of the knob (metal on metal) where it threads in. I'm thinking of wrapping some teflon or something else in there to prevent that from happening, but the clearance is pretty tight in there, but just loose enough to rattle. I suppose I could just replace the knob completely with something else too. The stock Subaru leather knob didn't rattle, but didn't look anywhere near as nice as the metal round one I have now. There's something to this. I went with the Subaru Momo knob from the leather as well and noticed a bit more NVH emitting from it and that's the only shifter mod I've done (no STS or bushings). You're logic is sound to me. My spec.B [#163] Project Thread with Pictures Get CryoTuned! Link to comment Share on other sites More sharing options...
suds2250 Posted May 3, 2012 Share Posted May 3, 2012 I had the same rattle with the MOMO knob as well, seems to be driveline related. 335HP/360Tq VF-22/1820 clone with Meth Link to comment Share on other sites More sharing options...
iNVAR Posted May 3, 2012 Share Posted May 3, 2012 take the knob off and see how much quieter the car is. Link to comment Share on other sites More sharing options...
trackhore Posted May 4, 2012 Share Posted May 4, 2012 My rattle was caused by a loose linkage bolt at the base of the shifter. Tightened it up a bit, noise went away. Link to comment Share on other sites More sharing options...
TheDon427 Posted May 4, 2012 Share Posted May 4, 2012 Tom@Kartboy posted some tips in my thread here: http://forums.nasioc.com/forums/showthread.php?t=2348756 Link to comment Share on other sites More sharing options...
wpgspecb Posted May 5, 2012 Share Posted May 5, 2012 i love how Tom is member # 67 of 300,000 + on NASIOC Link to comment Share on other sites More sharing options...
trackhore Posted May 6, 2012 Share Posted May 6, 2012 i love how Tom is member # 67 of 300,000 + on NASIOC Rao has him beat by a few clicks. Link to comment Share on other sites More sharing options...
iNVAR Posted May 8, 2012 Share Posted May 8, 2012 Rattle solved, or at least GREATLY reduced. I removed the knob, and using teflon (the kind you use for plumbing) I wrapped the threads from top, and when I got to the bottom, I wrapped it several times to widen the base. This effectively created a tapered cushion for the knob to tighten down into and center around and should prevent metal-on-metal contact there. Appears to be much quieter now! Link to comment Share on other sites More sharing options...
TheDon427 Posted May 8, 2012 Share Posted May 8, 2012 i love how Tom is member # 67 of 300,000 + on NASIOC Seriously! I remember the days when we used to make fun of member numbers over 100k. Now they're in the 300k's!! I'm getting old. Link to comment Share on other sites More sharing options...
trackhore Posted May 8, 2012 Share Posted May 8, 2012 Seriously! I remember the days when we used to make fun of member numbers over 100k. Now they're in the 300k's!! I'm getting old. It's the largest car forum in NA Link to comment Share on other sites More sharing options...
GEE-OTTO Posted May 10, 2012 Share Posted May 10, 2012 It's the largest car forum in NA probably high up on the global rankings as well;) Link to comment Share on other sites More sharing options...
GEE-OTTO Posted May 10, 2012 Share Posted May 10, 2012 Hicksta, 1. I have the same setup as you do, when you installed your rear shifter bushing did it lower the whole assembly? 2. How did you go about install the rear bushing i have skinny hands do you have to drop the drive shaft? 3. Did you use the TiC knuckle bushing replacement kit? If so what size punch did you use?? I have all the parts just wanted a tip from a member that has explored all aspect of the shift linkage Link to comment Share on other sites More sharing options...
GEE-OTTO Posted May 13, 2012 Share Posted May 13, 2012 So installed the KB STS. 1. Cracked the ball basket 2. Removed the entire metal bracket thing surrounding the shifter 3. Couldn't get both O rings to fit back into the cup after removing it. Other than that it was pretty easy. Greased up everything good and shifts are nice and crisp. I will tackle the front and rear bushings tomorrow I cant wait to fumble with the two bolts that hold the rear bushing in place Link to comment Share on other sites More sharing options...
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