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- Original Message -
From: Peter Frederick [EMAIL PROTECTED]
To: Mercedes Discussion List mercedes@okiebenz.com
Sent: Tuesday, December 18, 2007 9:53 AM
Subject: Re: [MBZ] W108 hydropneumatic levelling device
It's a pump system with hydraulic damping using air compressed
I think we're talking aout different things here. The Hydropneumatic
Leveling Device (Compensator IIRC) I talked about being on my W108 - a
68
280S, did not use a pump to keep it pressurized - it was more like a
huge
shock absorber (about8 dismeter x 12 long) that was mounted above
the
They were never cheap but occasionally someone is selling a good used one on
ebay.
On Dec 19, 2007 10:32 AM, Jim Cathey [EMAIL PROTECTED] wrote:
I think we're talking aout different things here. The Hydropneumatic
Leveling Device (Compensator IIRC) I talked about being on my W108 - a
68
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- Original Message -
From: Jim Cathey [EMAIL PROTECTED]
To: Mercedes Discussion List mercedes@okiebenz.com
Sent: Wednesday, December 19, 2007 10:32 AM
Subject: Re: [MBZ] W108 hydropneumatic levelling device
I think we're talking aout different things here. The Hydropneumatic
Leveling Device
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
On Behalf Of Gary Hurst
Sent: Tuesday, December 18, 2007 9:44 AM
To: Mercedes Discussion List
Subject: Re: [MBZ] W108 hydropneumatic levelling device
the general feeling is that the springs work for sixes but not for eights
LarryT wrote:
How was it powered? Mine didn't have any electric connections?
I'm guessing suspension movement pumps it up.
Mitch.
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How was it powered? Mine didn't have any electric connections?
As it bounces up and down it moves the pump piston. Like I said,
elegant. The only way the newer system was superior was that it
would pump up just sitting there, the older one had to be driven.
-- Jim
Wasn't the OEM (someone like BOGE) pressured to stop selling them so
MB could mark them up more? This far out there can't possibly be any
IP issues but then again, it would be a small market in any case.
A former '67 230s (110 or 111) had a bad one.
Tony Wirtel
Frederick [EMAIL PROTECTED] ; Mercedes Discussion List
mercedes@okiebenz.com
Subject: Re: [MBZ] W108 hydropneumatic levelling device
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
I think we;re talking aout different things here. The Hydropneumatic
Leveling Device (Compensator IIRC) I talked about being on my
, December 18, 2007 2:23 AM
Subject: [MBZ] W108 hydropneumatic levelling device
OK gang, I've looked everywhere and have not found a description of what
is inside the hydropneumatic device fitted to W108 rear axles.
Is this a typical nitrogen-charge-behind-a-diaphragm scenario (this would
explain
It's a pump system with hydraulic damping using air compressed by the movement
of the piston shaft back and forth and an internal valving system to keep the
resting position the same. Works great when new, but I suspect they are all
long dead by now.
Either the seals fail and it won't hold
Been a while now but Dan Penoff used to have a '62 300SE, a fintail
with hydropneumatics. As I recall, when I first saw it the car had
been sitting for quite a while and the suspension had leaked down. It
pumped right up on starting though and held pretty well at shutoff.
Don't know if he ever
Been a while now but Dan Penoff used to have a '62 300SE, a fintail
with hydropneumatics.
That's different. The leveling device was, IIRC, always
called a 'compensator'. Though it was _a_ hydropneumatic
levelling device, it was not _the_ hld.
-- Jim
___
/webercarbs
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- Original Message -
From: David Bruckmann [EMAIL PROTECTED]
To: Mercedes List mercedes@okiebenz.com
Sent: Tuesday, December 18, 2007 2:23 AM
Subject: [MBZ] W108 hydropneumatic levelling device
OK gang, I've looked everywhere and have not found a description of what
hydropneumatic levelling device
OK gang, I've looked everywhere and have not found a description of what
is inside the hydropneumatic device fitted to W108 rear axles.
Is this a typical nitrogen-charge-behind-a-diaphragm scenario (this
would
explain why they don't last forever) or did
Bruckmann [EMAIL PROTECTED]
To: Mercedes List mercedes@okiebenz.com
Sent: Tuesday, December 18, 2007 2:23 AM
Subject: [MBZ] W108 hydropneumatic levelling device
OK gang, I've looked everywhere and have not found a description of
what
is inside the hydropneumatic device fitted to W108 rear
He is subscribed here also, I do believe.
---
Kaleb C. Striplin
Cox Auto Trader
- Original Message -
From: Joe Knight [EMAIL PROTECTED]
To: mercedes@okiebenz.com
Sent: Tuesday, December 18, 2007 9:34 AM
Subject: Re: [MBZ] W108 hydropneumatic levelling device
Been a while now but Dan
:44 AM
To: Mercedes Discussion List
Subject: Re: [MBZ] W108 hydropneumatic levelling device
the general feeling is that the springs work for sixes but not for eights.
On Dec 18, 2007 7:53 AM, LarryT [EMAIL PROTECTED] wrote:
Howdy -
When the hydropneumatic levelling device died on my W108
OK gang, I've looked everywhere and have not found a description of what is
inside the hydropneumatic device fitted to W108 rear axles.
Is this a typical nitrogen-charge-behind-a-diaphragm scenario (this would
explain why they don't last forever) or did the engineers do something clever?
Well,
OK gang, I've looked everywhere and have not found a description of
what is inside the hydropneumatic device fitted to W108 rear axles.
So far as I know, it's more like a hydraulic bottle jack, I'm not
sure if it pumps air or fluid as the thing flexes. I believe its
problem is that the seals
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