air suspension schematic. - Land Rover Forums : Land Rover and Range Rover Forum
 
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post #1 of 15 (permalink) Old 05-16-2011, 07:41 AM Thread Starter
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air suspension schematic.

please do not respond with "convert to springs". that is not an option for me.

does anyone have an air suspension schematic? i need to trace a leak and want to know what to look for in the system.

thank you in advance.

2004 Discovery
2006 LR3
2006 350e 4matic
1990 Toyota Xtra Cab
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post #2 of 15 (permalink) Old 05-16-2011, 09:12 AM Thread Starter
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this is probably the reason people just opt for the spring coversion kit, there is no good schematic out there to troubleshoot the system. i mean, all the hooptie car's in compton have mad air suspension systems, i am sure the rover system is more elegant and easier to work on... someone anyone?

2004 Discovery
2006 LR3
2006 350e 4matic
1990 Toyota Xtra Cab
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post #3 of 15 (permalink) Old 05-16-2011, 12:52 PM
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Spray soapy water on all of it and look for bubbles forming.

-Joe-

'01 Disco II SE7 w/ SLS
'08 Audi A4 S-line
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post #4 of 15 (permalink) Old 05-16-2011, 05:40 PM
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Have you checked the RAVE. I believe there are both pneumatic and electrical diagrams available.

Ditto on soapy water to find the leak.

Belew
Tennessee
____________

'05 LR3
'04 Discovery II
'03 Discovery II
'02 Discovery II - SOLD
'01 Discovery II - SOLD
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post #5 of 15 (permalink) Old 05-17-2011, 04:32 AM
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Yes, the Rave is good.
How many miles on your bags, if over 80,000 miles it is usually always the bags, the hoses won't leak unless hit by a rock.
If you need new bags, consider the replacement bags from Arnott Industries in Florida, they are the best, by far, and much less money with a lifetime warranty.

Mike

Retired service manager, member of Solihull Society, SCLR, NCLR and the Santa Barbara 4Wheelers clubs.
99 D2, 3" lift, CDL with Detroit,T.T. lockers, 4:11's,H.D. axles, custom ft/rear bumpers with sliders, a 9500 HSI Warn winch and 5 HID's.

To DOWNLOAD the RAVE Manual, follow this link http://www.landroverresource.com/

Rover Radio issues or IPOD Adapters http://home.valornet.com/splacket/index.htm


Need Parts?
paulgrant@mac.com or call 203-770-1699
willtillery@roverguy.com or call 434-251-9331
P.T. Schram 260-804-0458

Lucky8, http://lucky8llc.com/
British Parts of Utah, http://www.bputah.com/
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post #6 of 15 (permalink) Old 05-17-2011, 05:26 AM Thread Starter
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thank you for the options.

the soapy bubbles is always my approach, just wanted to know the breakdown of the system.

i will have the bottle handy and heard of the Arnot product line.

i will let you know the outcome!

2004 Discovery
2006 LR3
2006 350e 4matic
1990 Toyota Xtra Cab
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post #7 of 15 (permalink) Old 05-17-2011, 05:44 AM Thread Starter
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this is the one..

mike, this is the one..

LAND ROVER Air Suspension Parts - Discovery II Series 1998-2004

2004 Discovery
2006 LR3
2006 350e 4matic
1990 Toyota Xtra Cab
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post #8 of 15 (permalink) Old 05-17-2011, 06:02 AM
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Quote:
Originally Posted by tworovers View Post
the soapy bubbles is always my approach, just wanted to know the breakdown of the system.
Is this what you're looking for?



It's page 64-9 of Rave.
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post #9 of 15 (permalink) Old 05-17-2011, 06:40 AM Thread Starter
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Daryl J, Thank you for the layout and corresponding page #.

I would simply do the bag replacement on this from Arnot, but the thing is, this only happens intermittently. The truck only sags in the rear sometimes.

Is there a solenoid that is left open? Is there something to look for?

2004 Discovery
2006 LR3
2006 350e 4matic
1990 Toyota Xtra Cab
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post #10 of 15 (permalink) Old 05-17-2011, 07:13 AM
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Quote:
Originally Posted by tworovers View Post
Is there a solenoid that is left open? Is there something to look for?
Possibly....



But all signs point to a leak somewhere based on seemingly everyone else's experience.

Is is sagging equally, or more to one side than the other?
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post #11 of 15 (permalink) Old 06-13-2011, 01:13 PM
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I'm reviving this thread as I've developed a similar issue. Every now and then I come out after the truck has been parked overnight and the left rear is deflated. It has happened about four times over the past month. I can start the truck, it pumps back up, shut it off and it holds fine - until the next time.

So soapy water isn't going to help unless I can guess when the next time is that it's gonna leak down and even then I suspect there must be a check valve of some sort, probably in the LH and RH air valves themselves and so any leakage past that might be internal to the valve assembly and may not appear as an external leak.

Anyway, has anyone ever taken apart one of the air valves? Are new ones available? Is there anyone who has retro-fitted to coils that still has their air suspension bits in a box in the garage?

things are not as they seem - nor are they otherwise
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post #12 of 15 (permalink) Old 07-25-2011, 04:22 PM
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I have symptom description , my D2 inflates when driven but sometimes after an hour sometimes after a few hours I hear a valve sound releasing air for a short amount of time(1-2 seconds) almost like a release valve on a compressor but much quieter. my left side seems to go down faster and raise slower. I've checked all the lines even the compressor for leaks and found nothing. I do hear a slight ticking noise(very quiet had to probe with a screwdriver up against my ear to pinpoint it) coming from pressure limiting valve but no leak.

My next step is to replace LH air valve? sound right?
Could it be exhaust valve?

Last edited by elcaminator; 07-25-2011 at 04:38 PM. Reason: Reviewed photo again
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post #13 of 15 (permalink) Old 07-25-2011, 05:51 PM
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Where is the air leaking from, the bag /line or the control unit under the frame?

Mike

Retired service manager, member of Solihull Society, SCLR, NCLR and the Santa Barbara 4Wheelers clubs.
99 D2, 3" lift, CDL with Detroit,T.T. lockers, 4:11's,H.D. axles, custom ft/rear bumpers with sliders, a 9500 HSI Warn winch and 5 HID's.

To DOWNLOAD the RAVE Manual, follow this link http://www.landroverresource.com/

Rover Radio issues or IPOD Adapters http://home.valornet.com/splacket/index.htm


Need Parts?
paulgrant@mac.com or call 203-770-1699
willtillery@roverguy.com or call 434-251-9331
P.T. Schram 260-804-0458

Lucky8, http://lucky8llc.com/
British Parts of Utah, http://www.bputah.com/
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post #14 of 15 (permalink) Old 07-25-2011, 08:10 PM
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from the compressor attached to the frame is where the release of air is coming from but i pulled it out, sprayed it and no leaks in lines even when making the noise(light light light ticking) it has no leaks but i have not sat around an waited for it to make that pressure release sound + sprayed it but i assume that wouldn't matter considering it has an exhaust tube correct????
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post #15 of 15 (permalink) Old 07-26-2011, 04:12 AM
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Then your leak is electrical. You might want to send me your number and I'll be glad to call and walk you thru a few things to check.

Mike

Retired service manager, member of Solihull Society, SCLR, NCLR and the Santa Barbara 4Wheelers clubs.
99 D2, 3" lift, CDL with Detroit,T.T. lockers, 4:11's,H.D. axles, custom ft/rear bumpers with sliders, a 9500 HSI Warn winch and 5 HID's.

To DOWNLOAD the RAVE Manual, follow this link http://www.landroverresource.com/

Rover Radio issues or IPOD Adapters http://home.valornet.com/splacket/index.htm


Need Parts?
paulgrant@mac.com or call 203-770-1699
willtillery@roverguy.com or call 434-251-9331
P.T. Schram 260-804-0458

Lucky8, http://lucky8llc.com/
British Parts of Utah, http://www.bputah.com/
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