Reply With QuoteThe Wabco valve block will operate at high enough pressure for the SLS. Some of the online options wont, hence why I'm looking for a Wabco valve block.
I will keep mine in place and use the second one as the Air in and Exhaust vales.
Happy Days
YarnMaster
you can emulate very easy the valve block, actually the whole compressor assy is replicable, for example instead of the air supply valve block you can use a push fit X piece like this
,
to insert the compressor outlet in it one side(middle pipe in the original valve block) buy 3 cheap 12V solenoid valves, something like this, it will be hard a bit to find addaptors form 1/4" for the 4mm air supply pipes but doable(i found at a local store here can't source online to show you), or maybe you can find valves for 4mm pipes from the beginning connect the air supply pipes through two solenoids and the third solenoid will be the exhaust, use bullet plugs or any plug you want to connect the supply/exhaust valve's electric commands to them and job done...they will even fit into the compressor housing... a friend of mine replicated the whole compressor assy this way and it works a treat
i hope i could make myself understood with my rotten english
Discovery Td5 (2000), manual, tuned
ChatterBox
The Wabco valve block will operate at high enough pressure for the SLS. Some of the online options wont, hence why I'm looking for a Wabco valve block.
I will keep mine in place and use the second one as the Air in and Exhaust vales.
Happy Days
YarnMaster
all those fittings are tested to 0.8MPa which is 8 bar/117psi(almost double of the pressure in the SLS system which is around 70psi)...i just wanted to show a tested cheap alternative
Discovery Td5 (2000), manual, tuned
Did that. no bubbles.....
Great idea, and easy to understand.. Many thanks,
Shirley..
ChatterBox
The specs on mine were rated to 1.0mpa but will only operate at 0.8mpa. Mine won't. I had to use a regulator between my compressor and the valve as it wouldn't open with the full pressure. My exhaust valve will open when I'm running around town but when I was loaded on my last trip it failed to open more than once and the SLS fault light came on because the SLS wouldn't go down.Originally Posted by sierrafery
Something else to note is the IN valve doesn't need to be as high rated as the pressure is equalized with pressure on both sides of the valve.
Happy Days.
YarnMaster
i dont quite understand that regulator thing but i'm sure you know that to release air the system must open the exhaust valve + the air supply valves(or only the one on the side it wants to drop)...so if the system wants to release air from both bags the two air supply valve will be open and if the exhaust valve is closed the air will travel from one bag to another through the valve block and if you dont have ACE the car can be extremely unstable in curves(it will be with ACE too untill the system kicks in but not so bad)...that case is like you dont have springs at all
also if i didnt misunderstood what you wrote(it could happen) normally the system won't release air as long as the car is loaded only if you remove load from it cos when you load it it will re-level up untill the sensor's calibrated limit to compensate the load so i dont see any reason to release air in this case ... bear with me if i misundertood something but i've studied deeply this system and i want to help you just that english might make tricks on me
Discovery Td5 (2000), manual, tuned
ChatterBox
My regulator limits the pressure from my compressor to the IN valve.
My IN valve that is rated to operate at 0.8mpa wouldn't open with full pressure from my compressor. The next problem I had was there wasn't enough pressure to lift the SLS when I had a load on so I had to adjust the regulator to increase the pressure to the IN valve.
I have LEDs on my dash that show when and which valves are opening. The system will not open left and right valves without also opening the IN or exhaust valve. Options for the system are both up, both down, left up, left down, right up or right down.
Happy Days.
YarnMaster
so you have an additional valve(IN valve) on the air pipe from the compressor to the air supply valves and a regulator between this valve and the compressor too? ...i really dont see why you want a regulator or an additional valve there
Discovery Td5 (2000), manual, tuned
ChatterBox
Because my compressor supplies an air tank that I also use for tyre inflation. Best part of that is the compressor doesn't run every time the air bags get inflated and the air supply from the air tank is much faster than the compressor alone.
My compressor is operated with a pressure switch. The whole compressor, air tanks and pressure switch is completely separate to the LR SLS system. The easiest way to think about it is I have replaced the SLS compressor with a valve. The only reason I replaced the exhaust valve is the standard exhaust valve is part of the compressor body.
Happy Days.
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