Re: [MBZ] 500SEL hydro suspension still acting up (or down)

2011-01-10 Thread Alex Chamberlain
Thanks for all the help, guys! I haven't had time to play with the car for a few days, but when I do I'll report back. David wrote: Before worrying about pressure, check the linkages between the height correctors and the control lever inside the car. Since both ends of the car are rising

Re: [MBZ] 500SEL hydro suspension still acting up (or down)

2011-01-07 Thread Alex Chamberlain
On Thu, Jan 6, 2011 at 9:49 PM, Jim Cathey j...@windwireless.net wrote: I find it hard to believe that the hydraulic fluid tank is really a pressure reservoir Can't be, it's plastic.  Would explode. Yeah, that's what I thought. The coolant overflow tank is plastic, but then it's not

Re: [MBZ] 500SEL hydro suspension still acting up (or down)

2011-01-07 Thread Mitch Haley
Alex Chamberlain wrote: Meaning that there's a reason for that little filter I found inside the flow control valve to be a sintered bronze solid rather than something less exotic, like a fine flat screen, for example? Would soaking it in brake cleaner as I did be enough to restore its degree

Re: [MBZ] 500SEL hydro suspension still acting up (or down)

2011-01-07 Thread Jim Cathey
Meaning that there's a reason for that little filter I found inside the flow control valve to be a sintered bronze solid rather than something less exotic, like a fine flat screen, for example? Well, they're physically robust, small, and cheap. What's not to like? Would soaking it in brake

Re: [MBZ] 500SEL hydro suspension still acting up (or down)

2011-01-07 Thread Max Dillon
07, 2011 9:46 AM To: Mercedes Discussion List Subject: Re: [MBZ] 500SEL hydro suspension still acting up (or down) On Thu, Jan 6, 2011 at 9:49 PM, Jim Cathey j...@windwireless.net wrote: I find it hard to believe that the hydraulic fluid tank is really a pressure reservoir Can't be, it's

Re: [MBZ] 500SEL hydro suspension still acting up (or down)

2011-01-07 Thread David Bruckmann
Before worrying about pressure, check the linkages between the height correctors and the control lever inside the car. Since both ends of the car are rising somewhat, and the height is the same (but low), I would check that first. What happens if you raise the lever inside the car? What happens

Re: [MBZ] 500SEL hydro suspension still acting up (or down)

2011-01-07 Thread Rich Thomas
You want the ride height hydraulics to be slow response, otherwise they would be chasing all kinds of bumps and what not and the car would be gyrating all over the place. Sort of a built-in analog filter. Now that might be different for the shocks that keep the wheels planted, that is a

Re: [MBZ] 500SEL hydro suspension still acting up (or down)

2011-01-07 Thread Fmiser
Alex Chamberlain wrote: Right, let's stipulate, as our colleague Snook, Esq. would say, that I already knew that. ;) The question I should have posed was, does the main flow control valve allow the high-pressure fluid from the pump to enter the rest of the system (i.e. the level control

Re: [MBZ] 500SEL hydro suspension still acting up (or down)

2011-01-07 Thread Max Dillon
- From: mercedes-boun...@okiebenz.com [mailto:mercedes-boun...@okiebenz.com] On Behalf Of Fmiser Sent: Friday, January 07, 2011 1:10 PM To: Mercedes Discussion List Subject: Re: [MBZ] 500SEL hydro suspension still acting up (or down) Alex Chamberlain wrote: Right, let's stipulate, as our

Re: [MBZ] 500SEL hydro suspension still acting up (or down)

2011-01-07 Thread David Bruckmann
As long as it is clear to everyone that the post that Max is commenting on below applied to spring-assisted SLS systems (123/124 wagons and similar). The 6.9/Euro-500SEL system is QUITE different, with no steel springs. The pressure management is also different, and there's not necessarily a

Re: [MBZ] 500SEL hydro suspension still acting up (or down)

2011-01-07 Thread David Bruckmann
This posting on the M-100 6.9 forum may also be helpful: http://www.m-100.cc/forum/topic.asp?TOPIC_ID=5862 ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or

[MBZ] 500SEL hydro suspension still acting up (or down)

2011-01-06 Thread Alex Chamberlain
Y'all may remember that a couple of weeks ago I was posting about my Euro 500SEL with the 6.9-style four-wheel hydro suspension, which was first pressurizing (lifting the car) at one end but not the other, then (after sitting overnight) seemed to be pressurizing properly, but still didn't respond

Re: [MBZ] 500SEL hydro suspension still acting up (or down)

2011-01-06 Thread Rich Thomas
Sell it to a Mexican as an exotic low-rider! Don't take it to a shop, on that Top Gear with the 600Grosser his checkup repair bill was 15k pounds! --R On 1/6/2011 12:55 PM, Alex Chamberlain wrote: But the car, though at the same height front and back, won't rise to normal ride height

Re: [MBZ] 500SEL hydro suspension still acting up (or down)

2011-01-06 Thread Peter Frederick
Check for a filter at the base of the reservoir. If you do have one there and it's full of crud, you may not be delivering enough fluid. I would double-check the o-rings on the filter, and apply some gentle air pressure from the back side of the sintered filter to make sure it's allowing

Re: [MBZ] 500SEL hydro suspension still acting up (or down)

2011-01-06 Thread Alex Chamberlain
On Thu, Jan 6, 2011 at 4:19 PM, Peter Frederick psf...@earthlink.net wrote: Check for a filter at the base of the reservoir.  If you do have one there and it's full of crud, you may not be delivering enough fluid. There's a filter inside the reservoir which I replaced, although it didn't seem

Re: [MBZ] 500SEL hydro suspension still acting up (or down)

2011-01-06 Thread Jim Cathey
I find it hard to believe that the hydraulic fluid tank is really a pressure reservoir Can't be, it's plastic. Would explode. There also seems to be some disagreement as to whether the system constantly recirculates fluid---in which case the health of the pump would be extremely important---