Outer Limits 4x4 Board

hey trying to decide on a compressor any sugestions
need one with a very high volume so not an arb or anything like that

endless air or york - engine driven.

There is no comparison in performance to electric.

The only other option would be the oasis air type - a york compressor driven by a winch motor. IMHO these are an option only if you don't have room in the engine bay for an endless air compressor.

Steve.

i got an endless air but it shit its self was a home job though would go endless again if i could get one that was reliable

stock 4runner wrote:i got an endless air but it shit its self was a home job though would go endless again if i could get one that was reliable

how was it set up?

ive done a 'home' job. originally it was set up with a grease nipple. after two compressors playing up i got jack of that then switched to an inline oiler setup. its been extremely good ever since. very happy with it

was running greese in it but the problem is it blows it all through the air lines my compressor only works at higher rpm now and where did you get your inline oiler

i had an endless air type set up with an oiler but one morning i accindently switched it on and 35km to work later of freeway it ran out of oil and seized up solid. lifted the bonnet expecting a fire from all the smoke and found the front pully glowing bright red.

Definitely worth having, just watch where you put the switch. mine was in for years till that morning and worked awesome. so many uses for compressed air.

so your endless air was a cheapy...
buy the proper compressor from kareela engineering..

yeah got mine on a pressure switch and tank
any one got a phone number or web site on where to get the proper ones

bogged wrote:so your endless air was a cheapy...
buy the proper compressor from kareela engineering..

Plenty of info on the www on how to "reengineer the compressor" for the DIY people. Mine is a Sanden SD508. Kareela Eng use Sanden compressors as they are suitable for the application. But remember these compressors were originally designed for A/C, not to pump air from atmospere
Mine as well as another guy in my club run grease in our compressors and no probs so far.
Mines been in for 1.5 years and the mates for around a year.
The oil system would be a better option however a bit more mucking around.
Also I dont lose grease into the air system. The only thing I want to change is my pressure switch. At the moment Im using the ARB 70/100psi switch but I want to get a 110/135 off ebay tehn run a pressure reg

in adelaide we have a place called b.l.shipway
they sell all sorts or pneumatics & hydraulics stuff

if your gonna go inline oiler and your entire system has already got grease pushing thru it you better off grabbing some new hoses and tank. then adding the oiler (before ac compressor) and separtor (after compressor).

you should not need to get the official 'endless air' compressor. they are the same as sandens and i assume that 'endless' have just blocked off the suction hole & given it a blue paint job.
my sanden sd7 for $39 from u-pull-it works a treat & with inline oiler, no mods required.

My understanding is that Kareela engineering change the seal material, fit a grease nipple, then paint it blue.

The endless air compressors I've seen and set up have worked very well.

I've tried to set up and seen a number of other a/c compressors for air and they have had variable performance and/or a short life.

My York piston compressor on my Gwagen pumped tyres for 7 years with zero maintenance.

Steve.

ok any one know what cars ran sanden compressors as id like to have another go before i have to spend lots of money

Just look under bonnets at the wreckers, they will have a tag bonded to compressor stating who makes it, what model, etc...

is any model better or as long as its a sanden it will do the job

stock 4runner wrote:ok any one know what cars ran sanden compressors as id like to have another go before i have to spend lots of money

old sigmas ran them...

i converted my toyota air con compreeor into an air compressor by putting a foam filter on the suction line and connecting wiring to a pressure switch on a 25lt tank , also have an isolation switch on the dash just in case .
once a fortnght or so i spray a bit of wd40 in the suction line but have been using it every day for over a year now and never had a problem with it does up to 250psi too..
the local auto elec runs one in his pregio vanand says as long as you give em some wd40 or lubricant every now and then they run quite a long time as the toyota ones (off 60 series diesel) have a internal oil reservoir or thats what he told me.

PJ.zook wrote:Just look under bonnets at the wreckers, they will have a tag bonded to compressor stating who makes it, what model, etc...

They look like this The 4 tags on each end for mounting are the distiguishing feature

have sat down and done my research and decided to go electric as i an get one that will do 5 cubic foot a minute where as endless air is only rated at 8 cubic foot a minute and thats if your prepared to let it sit a 2 grand so at idle it will only do 3 cubic foot a minute

Check the pressure that CFM is delivered at and the duty cycle of the compressor.

I think you'll find that the two figures can't really be compared.

Most electric compressors list their CFM rating against no load. this makes them look quick, but that doesn't mean you'll get 5cfm when your acutally airing a tyre up.

Steve.

Gwagensteve wrote:Check the pressure that CFM is delivered at and the duty cycle of the compressor.

I think you'll find that the two figures can't really be compared.

Most electric compressors list their CFM rating against no load. this makes them look quick, but that doesn't mean you'll get 5cfm when your acutally airing a tyre up.

Steve.

Exactly right, see what cfm they both flow when pumping at 80psi, you will find the electric one pales in comparison.

i have the sanden DIY convert, works a treat. I simply put a squirt of light machine oil in the suciton each time after use then i blow it to air before use to get rid of excess oil - never had a problem with it. I run an overpressure poppet valve ($10 at hose shop) in a tee-piece on the discharge, so if i accidently turn it on it self relieves saving the compressor.. you can also hear the valve go off.

FYI, generation 1 pajeros have the sanden compressor for factory A/C

Should really have a pressure-switch in series with your compressor clutch circuit. Then the compressor only works when needed rather than running constantly with regular venting to relieve over-pressure.
Poppets, prv's, pcvs, etc are only really designed as fail-safe devices (ie like an earth-leakage circuit-breaker in your house protects against accidental electrocution, but doesn't mean it's safe to use your body as an earth).
Also, self-oilers and regulators with incorporated automatic draining of excess oil/condensate are purchasable for under $100, making things very low-maintenance whilst guaranteeing sufficient lubrication at all times.




ed

bogged wrote:so your endless air was a cheapy...
buy the proper compressor from kareela engineering..

yeah right, and waste a bunch of $$$ on something you can do yourself.

The best setup is to run oil and use a small capillary line from the bowl of the oil separator to the intake. This circulates the oil round and round, the same as in an AC system. Much better than grease, and less of a PITA than using an oiler and refilling it constantly.

I run a Toyota A/C pump for constant air turned on and off by an adjustable pressure switch. Two Ali air tanks for storage. $35 at the wreckers for my last pump. First one lasted 2 years with no maintenance.
The constant air feeds the ARB's compressor tank via a one way valve. The constant air is also set just slightly higher than the ARB pressure switch. So my intire air system runs on constant air, lockers and all. If the constant air fails then the ARB compressor will kick in but it can only fill its own air tank due to the one way valve. Not the twin Ali tanks.
Worst case both fail and I fill both Ali tanks and the ARB from another vehical and have around 20-30 locker operations before empty again.

ISUZUROVER wrote: yeah right, and waste a bunch of $$$ on something you can do yourself.

The best setup is to run oil and use a small capillary line from the bowl of the oil separator to the intake. This circulates the oil round and round, the same as in an AC system. Much better than grease, and less of a PITA than using an oiler and refilling it constantly.

Im looking at setting up my air con as a compressor.. anyone got any photos of what a setup like this would look like? and where would i get the parts like a capillary line and oil sparator to make it??

Thanks Craig

SWBMQCraig wrote:

ISUZUROVER wrote: yeah right, and waste a bunch of $$$ on something you can do yourself.

The best setup is to run oil and use a small capillary line from the bowl of the oil separator to the intake. This circulates the oil round and round, the same as in an AC system. Much better than grease, and less of a PITA than using an oiler and refilling it constantly.

Im looking at setting up my air con as a compressor.. anyone got any photos of what a setup like this would look like? and where would i get the parts like a capillary line and oil sparator to make it??

Thanks Craig

You can get an oil separator from anywhere that sells parts for tradies compressors.


you want one with a polycarbonate bowl (like the one above) so you can drill ant tap it about 4mm from the bottom to take a small pushlock fitting - phich you can get from festo, sang-a, or anywhere that sells pneumatic parts to industry (same goes for the capillary line).

matt.mcinnes wrote:I run a Toyota A/C pump for constant air turned on and off by an adjustable pressure switch. Two Ali air tanks for storage. $35 at the wreckers for my last pump. First one lasted 2 years with no maintenance.
The constant air feeds the ARB's compressor tank via a one way valve. The constant air is also set just slightly higher than the ARB pressure switch. So my intire air system runs on constant air, lockers and all. If the constant air fails then the ARB compressor will kick in but it can only fill its own air tank due to the one way valve. Not the twin Ali tanks.
Worst case both fail and I fill both Ali tanks and the ARB from another vehical and have around 20-30 locker operations before empty again.

Likewise, I have a York in one vehicle which has been going for 10 years without a problem (apart from a couple of short air line sections dying recently from age and heat). I have used it to run a bunch of air tools as well (didn't have a workshop compressor when I first installed it, so it doubled as both!!!). My rock sliders double as air tanks.

I have a Sanden 508 about to go into my other vehicle.

i just set one up in my zook too. it goes quite well.. i need to setup an idle up type feature to keep the revs and in turn output up but other than that it rocks!
have you setup an idle up? if so how did you do it? i am looking at an old pushbike gear lever so i can click it on and the carby return spring wont keep pulling it back.

smileysmoke wrote:i just set one up in my zook too. it goes quite well.. i need to setup an idle up type feature to keep the revs and in turn output up but other than that it rocks!
have you setup an idle up? if so how did you do it? i am looking at an old pushbike gear lever so i can click it on and the carby return spring wont keep pulling it back.

You mean a hand throttle. My ex-mil landie has one standard. Will have to install one on the other landie when I fit the compressor. A choke cable works fine if you don't have anything better.

ISUZUROVER wrote:
You can get an oil separator from anywhere that sells parts for tradies compressors.


you want one with a polycarbonate bowl (like the one above) so you can drill ant tap it about 4mm from the bottom to take a small pushlock fitting - phich you can get from festo, sang-a, or anywhere that sells pneumatic parts to industry (same goes for the capillary line).

Ok so if i set it up on my air con i would run the oil separator on the exit air line from the compressor and tap in the capillary tube and run it to the inlet air line of the compressor? do you run a little air filter on the inlet too? and if you have it set up with a tank do you have a solenoid on the tank so that it will automatically activate the compressor if it goes below a certain pressure (ie 80psi)?

Thanks Craig

Take a look at this web page, tech info on how to mod them (with pics) and fit them to a GU.

The guy has compiled great tech info.

http://www.mcs.net.au/~grungle/endlessair.html