

| Subject: | Re: rebuilding shifter linkage |
| From: | Dan N |
| Date: | Fri, 14 Feb 2025 11:38:16 -0800 |
Does the shifter rod still have a rubber/plastic cover tube on it? On Fri, Feb 14, 2025 at 11:36 AM Mark McCulley <mark@markmcculley.com> wrote: > A whine-like sound is a component of what I hear, can't say if it's a > pinion or other gear. > > -Mark > > > On Feb 14, 2025, at 11:22 AM, Andrew Berg <andrew@BERGWEB.CA> wrote: > > > > What noise are you hearing. I just rebuilt my linkage with the same GW > kit at the same time as installing a rebuilt transaxle. I hear what could > be a very faint pinion gear whine during downshifts. Going to try some moly > additive. > > > > Andrew > > > >> On Feb 14, 2025, at 2:18 PM, Mark McCulley <mark@markmcculley.com> > wrote: > >> > >> I was rebuilding the shifter linkage due to worn bushings. > >> > >> I'm not feeling any vibrations, just hearing a noise emanating from the > shifter. The noise is loudest in 2nd, can also hear it in 1st, don't hear > it in 3rd or 4th. The pitch of the noise changes with RPMs. > >> > >> I don't think the transmission is making abnormal noises, it's just > that sounds from the transmission are being transferred through the linkage > and shifter into the cabin. The shifter knob is acting as a resonator. Just > touching the center of the knob with my finger stops the noise. Removing > the shifter knob stops the noise. > >> > >> My working theory is that the knob is hollow and is acting as a > resonator with the top of the knob as a diaphragm. GW warns about the hard > Teflon bushings conveying more noise, that's likely a factor here as well. > >> > >> > >> > >>> On Feb 14, 2025, at 10:42 AM, Dennis Haynes <d23haynes57@HOTMAIL.COM> > wrote: > >>> > >>> Were you repairing the shifter linkage due to worn bushings and a > shifting problem or an attempt to silence the vibration? > >>> Is the vibration in all gears, 1 and 2, or 3 and 4? Does the vibration > change with throttle change? > >>> In 3rd gear, light hand pressure pushing shifter forward, does the > shifter push back when throttle applied and then move forward when throttle > released? > >>> Did you check the front trans mount is good? > >>> > >>> Dennis > >>> > >>> > >>> -----Original Message----- > >>> From: Vanagon Mailing List <vanagon@gerry.vanagon.com> On Behalf Of > Mark McCulley > >>> Sent: Friday, February 14, 2025 9:16 AM > >>> To: vanagon@GERRY.VANAGON.COM > >>> Subject: Re: rebuilding shifter linkage > >>> > >>> I have an update on the shifter linkage work. Everything is back > together and I did a test drive yesterday. I'm not fully happy with how it > shifts yet, think I need to do some fine adjustment on the linkage. > >>> > >>> I chose to use the hard Teflon bushings and Viton rubber boots from > GW. Another option was bootless pliable bushings from VC but I wanted to > have boots. I did not use any lubrication on the Teflon bushings. > >>> > >>> During the test drive I noticed something odd...that removing the > shifter knob eliminated all of the transmission-related noise that was > being conveyed from the transmission by the linkage. No knob, no noise, > very strange. I'm going to play around with this some more, maybe try a > different knob from the OEM one I'm using. I also may try adding some > damping to the shifter rods and see if that makes any difference. > >>> > >>> -Mark > >>> > >>>>> On Jan 31, 2025, at 9:24 AM, Mark McCulley <mark@markmcculley.com> > wrote: > >>>> > >>>> I've started a winter project of rebuilding the shifter linkage, from > the shifter to the transmission. This will be the second time I've done > this project on this van, it's been at least 100K miles since I did it the > first time. > >>>> > >>>> I spent a couple of hours under the van yesterday removing all of the > linkage parts. It was a bit troublesome disconnecting the front and rear > shifter rod sections but I managed to get it done. The next step is to > remove all the undercoating on the two rod sections. I had undercoating > applied about 20 years ago. I think I'm about 60% through with that messy > endeavor. > >>>> > >>>> I also plan to replace the shift lever with one that is solid and > install a short shift kit. > >>>> > >>>> -Mark >
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