Quote:
Originally Posted by Ashikabi
I agree with NOMSG. The shaft passing through the seal should not really be able to "rattle" due to the seal itself. Also, that seal can't be replaced with a bushing or it will leak. I think your next test should be to dampen the joints of the floor shift shaft. Obtain or make a soft or flexible washer that can be compressed to add to the pins connecting the shaft. Perhaps some foam or neoprene can be cut into a washer.
If it is the stub shaft then we could look at making a secondary "seal" that would hold the end of the shaft
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Yeah, I dont think the internal shaft rattles against the casing as such, but vibrates through the oil seal, then through the first shaft joint. In other words the internal shaft is the actual cause of the vibration, and the sum of the other attached parts are designed to mitigate the vibration on a standard system.
When any single part of that system is compromised from standard, the whole shift system vibrates/rattles.
The engineers even added a "shift lever damper" into the first connecting joint structure.
That said, my first joint doesnt have the play in it that NoHaveMSG has, on mine (and others I've played with) the shaft rod end moves within the seal. But it is possible that most of the boxes I've looked at are fairly low km units (mine included).
I've tried a couple of versions of the soft washer idea, and it doesnt really work too well. I've also tried the opposite idea of (very) hard packing the washers...and that didnt work either.
I also tend to agree that drilling out the entire bush on the first link (below the gear lever), and replacing it with a flexible liner of some sort might be the best option....but very difficult.
I've even considered attaching small containers 3/4 full tungsten (granules) to the main shift control shaft to see if that might dampen the vibration....