FWIW, I found a dampening weight on eBay some years ago and installed it
on my TR4. It may have dampened the rattle a little, but it still makes
the noise when accelerating.
Dean
1965 TR4
On 9/4/2014 4:11 PM, D&B Lambert wrote:
>> >I've also been battling the vibrating/rattling gearshift lever on my TR3A
>> >for some time now. A few years ago (maybe 20K miles) I replaced the
>> >driveshaft u-joints and had the shaft balanced. Some months ago I got a
>> >copy of the Service Bulletin (mine is a little different than the one Randal
>> >posted) concerning gearshift rattles and performed the recommendations: I
>> >enlarged the trapezoid hole in the lever cap, and also tried the short piece
>> >of rubber tubing on the lever, neither of which made a bit of difference,
>> >except for making it much more difficult to shift into reverse. I've
>> >machined some shims/buffers out of Delrin for under the cap to prevent metal
>> >to metal contact in that area. No luck. I tried a stiffer/weaker gear
>> >lever spring. No difference. I tried hollowing out the gearshift knob and
>> >epoxying in a metal slug for dampening, again no luck. On that note, I have
>> >tried at least 4 different gear shift knobs (including an original hard
>> >rubber one) with no change in the vibration. The vibration and resultant
>> >chatter/rattle is much more sever when accelerating. I'm now into the habit
>> >of steering with one hand and holding the gear lever with the other to
>> >somewhat dampen the rattle. I'm kind of out of ideas, so I am following
>> >this thread closely. Anyone have any other ideas? Is the torpedo-shaped
>> >counter weight available anywhere? Does it really do anything? Couldn't I
>> >just make one out of a slug of steel and fab a bracket of some sort, or does
>> >it have to be a certain weight to cancel a specific harmonic? I dunno....
>> >Any suggestions? Perhaps I need to revisit the driveshaft/u-joints?
>> >Thanks for wading through this.
>> >Dennis
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