EAS query

[ukviper]

Hi all,

I recently rebuilt my valve block due to some weird issue that when standing still the front suspension went up and down on its own accord.

Turned out that someone had put one of the solenoids in the wrong place.
All went back together and seems to be working as expected except for car is on bumpstops each morning now.

I have unplugged the delay timer and left car overnight and it is down on the bumpstops, not unevenly, just all the way down.
Suspension works normally although pump is working more than it should whilst driving.

Tank seems to be holding presure as car goes up quickly in the morning.

Can anyone advise? Is this a bad NRV? Diaphragm? wrong sized o-rings?

I have done usual checks and no external leaks anywhere.

Cheers in advance.

[davidsonsm]

There has to be a leak. Have you sprayed the exhaust silencer? Dollar to a cent, it'll be one or more of the 10 x 1mm O rings that sit within the solenoid valves. Those pesky ones.

[TheTree]

Hi

Do you have a pressure gauge on the main line?

It's a big help

Steve

[redandy3575]

I'm willing to bet that it is the solenoid that has the rubber plunger at the bottom of the shaft.

I've got a similar issue with mine where the compressor seems to be running more than it should. The plunger part you cannot buy anywhere, trust me I've looked everywhere on this planet. But you can go to either Clark rubber or similar shops and buy those small rubber stoppers or feet for electrical appliances. You just cut the heads of them and your left with a cylindrical shape rubber plunger. You may need to sandpaper it a little to size, but should do the trick. I'm still yet to do mine, as I'm still addressing the transmission issue, but that'll most likely be the issue.

[ukviper]

@SteveFarmer, No, unfortunately I don't have a pressure gauge on the main line, might have to invest in one.

@davidsonsm, When everything is static, with door open, I removed silencer, and covered outlet with finger and noticed no pressure build-up. It just seems strange that all corners go down all together and isolated from the 'smart' electronics too.

Really starting to think that o-rings I got off e-bay were not 100% to spec and all solenoids are leaking internally.

I am presuming that the solenoid should hold the spring pressure and barring any leaks at the spring or pipe connection to block, it will be the solenoids?

Can anyone recommend a good reliable source for the o-rings? or the specifications so I can purchase here in OZ?

Cheers.

[ukviper]

^^ Oh, when I said spring in above I meant airbag.. :)

[ukviper]

@redandy3575 Just wondering if yours also goes to bumpstops overnight with system disabled?

[davidsonsm]

Chances are it will be the 10 x 1mm O rings internal on the solenoid valves. I bought a stack of Viton material O rings in this size, but Nitrile will do the job just as well. They are definately the correct size.

PaulP38a on here is probably the most reliable source for O rings.

Whilst in Home (http://www.sealimports.com.au/) I also noted they sell sheets of various types of rubber (neoprene included). The sheets have different hardness factors. I reckon they'd match the rubber in the end of the solenoids - if you took them a sample. I've repaired one solenoid by hole stamping (6mm from memory) a pellet from a sheet of rubber, and gluing it in. And then doing the good ole wet and dry on the pedestal drill.

[ukviper]

Chances are it will be the 10 x 1mm O rings internal on the solenoid valves. I bought a stack of Viton material O rings in this size, but Nitrile will do the job just as well. They are definately the correct size.

PaulP38a on here is probably the most reliable source for O rings.

Whilst in Home (http://www.sealimports.com.au/) I also noted they sell sheets of various types of rubber (neoprene included). The sheets have different hardness factors. I reckon they'd match the rubber in the end of the solenoids - if you took them a sample. I've repaired one solenoid by hole stamping (6mm from memory) a pellet from a sheet of rubber, and gluing it in. And then doing the good ole wet and dry on the pedestal drill.

Thanks for this @davidsonsm.

Looks like I need to strip it all down again.

Will give it a go as soon as I can as I don't want to wear out my new compressor..

[davidsonsm]

Let me know if I can help. We're both Melbourne based.

[ukviper]

Cheers, appreciate it.

[redandy3575]

@redandy3575 Just wondering if yours also goes to bumpstops overnight with system disabled?

Not overnight, but in a couple of days yes. Wether that is normal I don't know, but when I start it up she prances right back up again and ready to go in a snap.

It's been one of those ongoing things that is hard to diagnose.

I still wouldn't trade the airbags for coils though, not on a heartbeat.

[davidsonsm]

If its right, you shouldn't see any drop over days. It's taken me months to get there, and tis great now. Pain at times though. Being absolutely methodical and clean is my best advice.

[p38arover]

I still wouldn't trade the airbags for coils though, not on a heartbeat.

I've had my P38A for 12 years. I'm over EAS.

[TheTree]

Hi

If she comes right up then I would say your main system is holding pressure.

Also have you read this mate?

EAS Troubleshooting Tips (http://www.rangerovers.net/forum/7-range-rover-mark-ii-p38/4468-eas-troubleshooting-tips.html)

Steve

[davidsonsm]

If its coming straight up I would say there is good tank pressure. But the bag side of the block must be leaking somewhere.

[redandy3575]

I've had my P38A for 12 years. I'm over EAS.

Really.......... I reckon if it hadnt of been for the EAS, i propably wouldnt even consider buying a P38.

I know they can be troublesome sometimes, but i still think they're the backbone of the P38 and all late Land Rover products super capabilities.

[davidsonsm]

Ron, Don't you love the look of the car unloaded - ie level. Cruisers with air bags within the springs look silly with their arses in the air.

The 100mm of travel between upper and lowest settings gives you the best of all worlds. A lift when you need it and hunker down on the highway. I'm sure you know all this.

Must admit to longing for a simple setup at times, when the EAS had been causing strife.

[olbod]

Hi all,

I recently rebuilt my valve block due to some weird issue that when standing still the front suspension went up and down on its own accord.

Turned out that someone had put one of the solenoids in the wrong place.
All went back together and seems to be working as expected except for car is on bumpstops each morning now.

I have unplugged the delay timer and left car overnight and it is down on the bumpstops, not unevenly, just all the way down.
Suspension works normally although pump is working more than it should whilst driving.

Tank seems to be holding presure as car goes up quickly in the morning.

Can anyone advise? Is this a bad NRV? Diaphragm? wrong sized o-rings?

I have done usual checks and no external leaks anywhere.

Cheers in advance.

G'day.
Have you plugged a Nanacom thingy into it ?
I plugged my Nanacom in yesterday to clear the EAS fault. Found it was the pressure switch staying open.
I looked about abit in the EAS and found that the rear airbag valves were also staying open. This would account for my slow leak and slowly loosing pressure at the rear when left standing for a few days.

I will shortly rebuild my valve block so all may be well.

[MoodyBlue]

Anyone seen kits using the red Viton O-Rings?

I have replaced the standard black O-Rings a couple of times now and am thinking the viton rings may last longer.

Thanks
Jeff
moodyblue933@hotmail if anyone has a source.

[ukviper]

G'day.
Have you plugged a Nanacom thingy into it ?
I plugged my Nanacom in yesterday to clear the EAS fault. Found it was the pressure switch staying open.
I looked about abit in the EAS and found that the rear airbag valves were also staying open. This would account for my slow leak and slowly loosing pressure at the rear when left standing for a few days.

I will shortly rebuild my valve block so all may be well.

I have, yes. All is working normally with no errors on Nanocom.

Have o-rings on the way so hopefully a replace will sort it out.

Cheers.

[ukviper]

<<UPDATE>>

Just so you know, I re-built valve block using bog standard black nitrile o-rings and all is well.

The kit I put in there before was meant to be the red Viton O-Rings but I think I was ripped and must have been silicon.. :mad:

Car stays up overnight now, tank stays full..etc. all good.

Cheers all.