Outer Limits 4x4 Board

Anyone use the A/C pump instead of a compressor for the lockers etc??

If so How did you set it up?

Do you have to use an airtank as well?

Remydog05 wrote:Anyone use the A/C pump instead of a compressor for the lockers etc??

If so How did you set it up?

Do you have to use an airtank as well?

used an airtank, used arb pressure switch and all solenoids. could put the locker in and out around 60 times before the compressor kicked in again..
worked perfectly. planning on doing it again.

those little arb compressors etc seem to do the job but do not compare to volume.


displacement wins every time

Remydog05 wrote:Anyone use the A/C pump instead of a compressor for the lockers etc??

If so How did you set it up?

Do you have to use an airtank as well?

http://www.outerlimits4x4.com/viewtopic.php?p=658982

is there a way of using your current a/c pump (eg without adding another) to fill a tank, while retaining the a/c on the vehicle?

ie. adding a manifold with solenoid(s) to divert the air to say ac/air tank/lockers? then you could turn on your fan (without ac) and use an override switch to fill tank?

would this work or is it a stupid question?

DEEV8 wrote:is there a way of using your current a/c pump (eg without adding another) to fill a tank, while retaining the a/c on the vehicle?

ie. adding a manifold with solenoid(s) to divert the air to say ac/air tank/lockers? then you could turn on your fan (without ac) and use an override switch to fill tank?

would this work or is it a stupid question?

It wouldn't work because the air conditioning pump compresses the gas in the system. For it to work as a compressor you would need some kind a tap to swap from gas to air. This would make you lose pressure in the system.

STUMPY wrote:

DEEV8 wrote:is there a way of using your current a/c pump (eg without adding another) to fill a tank, while retaining the a/c on the vehicle?

ie. adding a manifold with solenoid(s) to divert the air to say ac/air tank/lockers? then you could turn on your fan (without ac) and use an override switch to fill tank?

would this work or is it a stupid question?

It wouldn't work because the air conditioning pump compresses the gas in the system. For it to work as a compressor you would need some kind a tap to swap from gas to air. This would make you lose pressure in the system.

of course...

STUMPY wrote:

DEEV8 wrote:is there a way of using your current a/c pump (eg without adding another) to fill a tank, while retaining the a/c on the vehicle?

ie. adding a manifold with solenoid(s) to divert the air to say ac/air tank/lockers? then you could turn on your fan (without ac) and use an override switch to fill tank?

would this work or is it a stupid question?

It wouldn't work because the air conditioning pump compresses the gas in the system. For it to work as a compressor you would need some kind a tap to swap from gas to air. This would make you lose pressure in the system.

Like he said - either you need to install a second (AC) compressor or ditch the AC and use the stock compressor.

And while we are at it - it is worth noting that AC gas carries oil with it to keep the seals etc lubed. Once run as an air compressor, a means of lubricating the pump is required or it will wear out very quicky., normally by a tool oiler, but they can be modified (sold commercially as endless air) with a grease nipple to keep them lubed.

This is the case of rotary pumps. Piston driven "York" pumps as used by ford on V8's of the 70's and and many 80's european cars do not require oiling the air as they have a sump. I have used my york as an air compressor in the G wagen for many years. Topped up the oil once, delivers around 8-9cfm.

I use a tank with an air locer pressure switch so it could run lockers fine.

My Dad's 80 series has an endless air compressor, airlocker pressure switch, tank, and runs his airlockers fine.

Steve.

So hook it up with a Air line going from a/c compressor to a tank. (how big do most run?)

Then Locker soleniods off the tank with the air locker hose coming off that.

And am I right in saying that the A/C pump has the shut off switches in it so that when it fills the tank at a certain psi it will shut off?? Or do I need to use the airlocker Presure switch to make the a/c pump turn off at certain psi??

Remydog05 wrote:So hook it up with a Air line going from a/c compressor to a tank. (how big do most run?)

Then Locker soleniods off the tank with the air locker hose coming off that.

And am I right in saying that the A/C pump has the shut off switches in it so that when it fills the tank at a certain psi it will shut off?? Or do I need to use the airlocker Presure switch to make the a/c pump turn off at certain psi??

You need to fit an electric pressure switch (or use the ARB one) connected to the A/C fan clutch. A pressure relieving valve would also be a good backup to have if the pressure switch fails.......

Mark2 wrote:

Remydog05 wrote:So hook it up with a Air line going from a/c compressor to a tank. (how big do most run?)

Then Locker soleniods off the tank with the air locker hose coming off that.

And am I right in saying that the A/C pump has the shut off switches in it so that when it fills the tank at a certain psi it will shut off?? Or do I need to use the airlocker Presure switch to make the a/c pump turn off at certain psi??

You need to fit an electric pressure switch (or use the ARB one) connected to the A/C fan clutch. A pressure relieving valve would also be a good backup to have if the pressure switch fails.......

What he said - I used a pressure switch from an industrial compressor - cost $30 (new) from a tool shop and is fully adjustable.