macneill
Rollin’ on 33s
http://www.frogsisland4x4.com/featured_projects/featured_projects_toyota_lc_100.htm
Hope it's not a repost. If it is....
Hope it's not a repost. If it is....
A nice build up
- Thread starter macneill
- Start date
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Pretty cool. I was intrigued by the aux tank rig especially.
kevinmrowland
Forum Lifer
With enough $$$$ any buildup is easy.
kevinmrowland said:
True Statement.
Unfortunately $$$ is the hardest part of the buildup for me.
That's an expensive setup
You've been googleing for water tanks, too? 
I really like the setup - just right for overlanding. I just don't trust OME shocks enough that I would use them for this purpose...
Regards
Samo
I really like the setup - just right for overlanding. I just don't trust OME shocks enough that I would use them for this purpose...
Regards
Samo
uHu
Bridgeburner
Very nice rig.
If someone would like to donate one, I wouldn't mind travel along to Nigeria.
I think it must be possible to find the right coil-springs for the rear to take just the extra weight. The front springs can be adjusted. (whether they will hold the load is another question). For the front, there is a procedure for adjusting the torsion-springs to the correct "hydraulic neutral-pressure". Can't see why the same procedure couldn't be used for fitting beefier coil springs at the rear.
But then again, maybe the Nigeria expedition did the right thing....
BTW, does anyone know when this job was done?
If someone would like to donate one, I wouldn't mind travel along to Nigeria.
I think it must be possible to find the right coil-springs for the rear to take just the extra weight. The front springs can be adjusted. (whether they will hold the load is another question). For the front, there is a procedure for adjusting the torsion-springs to the correct "hydraulic neutral-pressure". Can't see why the same procedure couldn't be used for fitting beefier coil springs at the rear.
But then again, maybe the Nigeria expedition did the right thing....
BTW, does anyone know when this job was done?
uHu said:
I'm interested in this procedure. Is it documented somewhere? I browsed through the FSM but couldn't find it.
It is puzzling to me that the AHC wouldn't be able to deal with this. Because, isn't this the whole idea behind the AHC? Loading the vehicle with 8 passengers with luggage should be about the same amount of load as loading it for an expedition?
uHu
Bridgeburner
AHC system Neutral Pressure
Unloaded vehicle, full tank(s), height adjusted first to LO, then to N. Engine OFF.
If using a LSPV gauge (or similar), then:
A
Start engine, adjust vehicle height to Lo
B
with engine and ignition off, discharge suspension fluid from the bleeder plug using same procedure as normal bleeding (Slowly: High Pressure)
C
Remove the bleeder plug and fit the LSPV gauge adaptor in the bleeder plug hole, and bleed air.
D
Start engine and push height selector N,
E
after reaching N height, adjust to Lo, and then N again.
F
Stop engine
G
Read LSPV gauge pressure
When removing the LSPV gauge, follow same procedure with Lo setting, then drain fluid, replace normal bleeder plug, bleed air. And keep an eye on the fluid level (by now it needs some topping up).
Pressure measured at the bleeder plug of a front DF actuator should be 5.7 MPa with a tolerance of 0.3 (825 +- 43 PSI) using a LSPV gauge (Toyota SST 09709-29018).
Or measured with the hand-held tester (toyota I suppose), at the front shock absorber, 6.9 MPa with a tolerance of 0.5 (996 +- 71 PSI).
Adjust torsion bar spring to achieve correct pressure.
At the rear, 4.4-5.5 MPa (640-797 PSI) w/o sub-tank,
4.7-5.8 MPa (683-839 psi) w sub fuel, at the bleeder plug.
For hand-held tester, rear shock, 5.6-6.7 (811-967) and 5.9-7.0 (853-1010).
Hints:
The cylinder (shock) pressure read by the hand-held tester is estimated from the pump-emitted-pressure, so the pressure is approx 1.2 MPa (12 kgf/cm2, 171 psi) higher than the pressure read by the LSPV gauge.
LSPV=Load Sensing Proportioning Valve (you know, rear brakes)
Make sure you clean the gauge kit before and after use, so that you want get any brake fluid into the AHC system, or any AHC fluid into a brake system later.
Unloaded vehicle, full tank(s), height adjusted first to LO, then to N. Engine OFF.
If using a LSPV gauge (or similar), then:
A
Start engine, adjust vehicle height to Lo
B
with engine and ignition off, discharge suspension fluid from the bleeder plug using same procedure as normal bleeding (Slowly: High Pressure)
C
Remove the bleeder plug and fit the LSPV gauge adaptor in the bleeder plug hole, and bleed air.
D
Start engine and push height selector N,
E
after reaching N height, adjust to Lo, and then N again.
F
Stop engine
G
Read LSPV gauge pressure
When removing the LSPV gauge, follow same procedure with Lo setting, then drain fluid, replace normal bleeder plug, bleed air. And keep an eye on the fluid level (by now it needs some topping up).
Pressure measured at the bleeder plug of a front DF actuator should be 5.7 MPa with a tolerance of 0.3 (825 +- 43 PSI) using a LSPV gauge (Toyota SST 09709-29018).
Or measured with the hand-held tester (toyota I suppose), at the front shock absorber, 6.9 MPa with a tolerance of 0.5 (996 +- 71 PSI).
Adjust torsion bar spring to achieve correct pressure.
At the rear, 4.4-5.5 MPa (640-797 PSI) w/o sub-tank,
4.7-5.8 MPa (683-839 psi) w sub fuel, at the bleeder plug.
For hand-held tester, rear shock, 5.6-6.7 (811-967) and 5.9-7.0 (853-1010).
Hints:
The cylinder (shock) pressure read by the hand-held tester is estimated from the pump-emitted-pressure, so the pressure is approx 1.2 MPa (12 kgf/cm2, 171 psi) higher than the pressure read by the LSPV gauge.
LSPV=Load Sensing Proportioning Valve (you know, rear brakes)
Make sure you clean the gauge kit before and after use, so that you want get any brake fluid into the AHC system, or any AHC fluid into a brake system later.
Last edited:
hoser
SILVER Star
Good information, uHu. I wonder what mine pressures read after adjusting the height sensors.
Do a search for Sleeoffroad's build up of his 100. To handle the added weight, he used OEM 100 series LC T-bars in the front and OEM 80 series coil springs in the rear. They both have a slightly higher spring rate than the T-bars/springs on the AHC suspension.
Others have used Old Man Emu T-bars/springs (even higher spring rate) but I'm not so sure the AHC system will provide enough dampening even when set on "firm" all the time.
Do a search for Sleeoffroad's build up of his 100. To handle the added weight, he used OEM 100 series LC T-bars in the front and OEM 80 series coil springs in the rear. They both have a slightly higher spring rate than the T-bars/springs on the AHC suspension.
Others have used Old Man Emu T-bars/springs (even higher spring rate) but I'm not so sure the AHC system will provide enough dampening even when set on "firm" all the time.
uHu said:
I don't think stock shocks would do the job either. Mine proved to be for one short trip only. If you look on the cars on the amateur races in Africa, all you can find on them are Bilsteins and Konis - and there must be a reason
Regards
Samo
uHu
Bridgeburner
Wish somebody could make a "Manual Suspension Control Console/Box" for the AHC/TEMS of the 100. That way you could adjust the height and all the 12 (I think it is) damping force settings indipendent of hi or lo range, lock or not, speed, etc.
Samo, what failed on your shocks? Was it the shocks themselves, or the actuators, where the damping is actually handled.
Samo, what failed on your shocks? Was it the shocks themselves, or the actuators, where the damping is actually handled.
