Topic: arb issue

[86rocktoy]

wtf? so i get my oba hooked up turn my arb on and nothing. solenoid is working fine its getting air, but the damn thing wont lock? there are no air leaks anywhere. it did sit for about three months in a completely sealed frontend, anybody have any ideas.

[OOPS]

Sounds like you are going to have to pull the 3rd and start troubleshooting. Or take it back to whom ever set it up.

[*ROKTOY*]

Get a Detroit

[Willy Mammoth]

Have you tried to put air at the fitting on the thrid?

I have seen the fitting close up the small copper tube and pinch it off. The rubber Oring will pinch off the line if tightened too tight.

[Yoat Goat]

Detroits suck in toyota fronts. Pop a birf and you get a $500+ paper weight.

Sounds like you got an airleak somewhere. I'd say pull diff and investigate.

[Hammerhead]

Get a Detroit

Why downgrade?



How did you test the unit?  Have you checked pressure at the diff inlet fitting? 

[86rocktoy [OP]]

ok, i finally found the problem. the  that set up the third not only managed to kink the copper line but TRIED to fix it to(note the hammer marks and flat spots). ordered a new one and some seals so im good to go. i tested the arb and it works fine im running about 30 psi to it and it is locking up fine. does anybody know the propper psi they run at or am i fine.

[Mnmstoy]

found this...looks like 85-100psi.
ARB:
The ARB Air Locker is a driver-controlled differential lock actuated by pushing a dash-mounted button. In a tenth of a second, compressed air actuates a piston inside the differential which engages a locking gear, instantly locking the differential and directing driving torque to the wheels with maximum traction.  The diff lock is simply disengaged by again pushing the button.  The Air Lockers lock the axles together, providing 100% traction to all wheels, allowing you to safely traverse even the most difficult terrain.

The ARB requires an air source between 85~100 psi.  The air source must be controlled, either via manually operated valves (I have a friend who did this and says he finds it more reliable) or through an electrically actuated air solenoid.  The later is known to fail upon occasion....fact, not myth.  If you have a spare and some tools, it should not be a big deal to put in a new one.

The ARB locker costs around $150~ $200 more per axle than does the Detroit Locker.  In addition to this, you will need some kind of an air system to operate it, along with the appropriate control switches, air solenoids, and air line, etc.  This will add several hundred $$ to the overall project cost.  If you already have an air supply in your vehicle, you can use it along with a pressure regulator and the necessary switches, lines, solenoids, etc.  This will help reduce the cost.

Mike

[Hammerhead]

Yep, put a regulator on your air supply so you are only running 90 PSI to the ARBs.  That leaves you with full tank pressure for airing up tires or for running air tools and such.