[ROVERNET - UK] P6 Steering Idler Damper

Ron Morey morey814 at hotmail.com
Fri May 20 04:27:25 BST 2005


In my experience the dampers tend to cause a noise not unlike loose ball 
joints. The wear points I have seen most often are on the vanes-pitted like 
a worn oil pump-and excessive clearance on the top cover. Milling the top 
cover and building up and machining the vanes seems the only repair 
possibility to me. 90W oil helps but will not cure. I have not had one with 
a worn bushing and seal but that should be possible.
Have fun with the machining.
Ron.

>From: "Tom Trafton" <v8rover at earthlink.net>
>Reply-To: rovernet at lyris.ccdata.com
>To: <rovernet at lyris.ccdata.com>
>Subject: Re: [ROVERNET - UK] P6 Steering Idler Damper
>Date: Thu, 19 May 2005 09:08:27 -0700
>
>Hi Steve
>
>These units are quite simple rotary dampers, with a vane turning inside a
>housing.  I have pulled mine apart, in situ, lifted the vane out, cleaned 
>it
>out well, then put it  back together, replacing the oil with 90W gear oil.
>You do find very fine metallic particles from internal wear but as long as
>there is nothing broken and the clearance between the vane and housing
>hasn't increased appreciably, it will continue to work just fine.  Funny
>that the manual says 'no maintenance'.  I noticed that too but then noticed
>that they put a plug on the top so you can top it off!
>
>Cheers,
>
>Tom
>
>
>----- Original Message -----
>From: "smanwell" <smanwell at sprintmail.com>
>To: <rovernet at lyris.ccdata.com>
>Sent: Thursday, May 19, 2005 8:47 AM
>Subject: [ROVERNET - UK] P6 Steering Idler Damper
>
>
> > P6'ers,
> >
> > I have found a spare idler damper for Albert Boasberg's 2000TC, but it
> > has brought up a few questions.  It appears to be in good condition --
> > the shaft turns in the body without any apparent play or looseness in
> > the bushings; no sign of leaks.  I noticed however, that the hydraulic
> > resistance as I turned the shaft was not completely steady at first.
> > Now that it has been sitting upright in the vice for a while and it has
> > been exercised back and forth several times, the hydraulic action has
> > smoothed out.  (I take the unsteady damping to be some air mixed with
> > the damping oil after turning the damper right side up.)
> >
> > I got to wondering whether the oil in the unit should be topped up and
> > then I discovered that the manuals call for "no maintenance" on this
> > part.   I have a vague memory of topping these dampers up with engine
> > oil 25 years ago (!) on my grandfather's 2000TCs -- maybe I'm thinking
> > of some other part.
> >
> > What is the collective wisdom on these dampers -- should the oil be
> > topped up and with what fluid?  Are they really not rebuildable as the
> > manuals claim?  How do these units tend to fail -- wear, leaks?
> >
> > Regards,
> >
> > Steve Manwell
> > RSTCA
> >
> >
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>
>
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