Thread: Discussion on replacing Wabco sls compressor

Sounds like a really good move mate. Thats the way i will be going when my compressor fails. I think you will only need one of the two outlets controlled by a solenoid (the sls one).
The other outlet will be triggered when you use the air hose etc and then the pressure switch on the compressor itself will opperate and refill the tank to pressure.

Where will you mount the tank? I thought in the same spot as the wabco compressor but on the opposite side - seems plenty of room.

Where will you mount the compressor? My underbonnet is full with a second battery - so not there for me. The ARB comp is supposed to be dust and waterproof so i would put it in the same spot as the old one. I also thought about putting it in the rear cargo area - just inside the door behind one of those grills. There is a thread on here somewhere where this has been done. My only concearn with it there would be noise.

I'll be interested to see how you go. All the best!

Yeah realised after posting that I would only need one solenoid (working brain too hard), I was going to mount tank under vehicle but decided it might be better mounted inside in the space where my rear left folding seat is, as I don't really use the seats much anymore. The compressor I was going to mount in the rear panel where the access panel is in the boot. Been searching web for all the parts I need, found out that if you search for nylon hose you get some kinky results, looks like I might order most pneumatic parts through RS components, compressor and tank maybe from superior engineering. I had fun at ARB the other day when I was looking at compressors and the sales person was yapping to me, I told him what I was doing and then he stated it sounded too complicated and maybe I should do a coil conversion (his reason is coils are more realiable), I discussed my point for a bit and then gave up, he is happy with patrol, I will now look to buy the compressor elsewhere. I just don't understand why sales people would be so quick to argue my ideas and lose themselves a sale.
Cheers Matt

Happy to report that the second solution is still working well in my D2. I have considered adding the tank for inflation of tyres and have now sourced some small tanks which will fit inside the ARB bull bar. I would keep the ARB compressor output connected directly to the SLS but have a second drive relay and solenoid valve on its outlet to route to the tanks - that way there is less stuff to fail in between the compressor and the airbags. I need the SLS working all of the time and the air tanks very rarely.
BTW: Don't put the ARB compressor inside the cabin if it is for SLS - way too noisy!
Cheers,
Steve

you could be right about the noise,,
but at least it should be better sealed against dust and water.
water and overuse being the big killer.

I picked up ARB compressor today and have ordered an air tank, I will have to see how the noise goes but like Pedro said, it will be better protected in the car although engine bay (battery compartment) is an option but then I need to move my jack. I don't doubt I will come across some hurdles along the way. Big problem at the moment is keeping prices down, I have searched heaps of sites trying to find cheaper parts, so far I have used the following sites:
PNEUMATICS - Fittings, Legris Push In Fittings,
Ag Wholesalers | Farming Supplies | Agricultural Products and Solutions : Fencing Supplies | Southern Downs | Queensland Agricultural Supplies
and the air tank is coming from superior engineering, although ebay has some cheap ones (Superior tank is better sized).
This project will probably take me a couple of weeks to finish as I wait for parts and find time to install.
Cheers Matt

Don't sweat about moving the jack. There are many reports suggesting that storing it horizontally in the engine bay is detrimental as it can leak without you noticing. I found plenty of relatively expensive pneumatics suppliers but all are metric (SMC, Festo, RS components etc..) Best find was Qld Diesel Spares in North Ipswich which has adaptors, fittings & valves on display and you can assemble your solution like a Lego kit. It seems the local industry is imperial with 5/16 tube and NPT or BSP type threads, not metric. The ARB guys didn't speak metric either. Having said that, I've adapted mine to metric as far as possible.
Cheers,
Steve

I've noticed that most reasonable suppliers are located in QLD, which makes it hard for me to go and see the product, the hot rod shops are all american imperial sizes. ARB seem to only be good at talking about what is on their shelves and some ARB sales reps don't seem to know a lot of depth about 4wds in general. Hopefully all the parts I am buying will work for the job intended, I know some stuff I will have too much of eg nylon air hose, but I will try and combine a few jobs all at once.
Cheers Matt

believe it or not,, you will find your local repco stocks imperial hose fittings,,

and any European truck service centre will supply metric,,