It typically produces around 102-110 HP with peak torque at low speeds (1,400–2,000 RPM), making it ideal for heavy loads.
Loosen the lock nut and turn the adjusting screw until the gauge has a "slight pinch". Re-tighten the lock nut and recheck. Cylinder Head Removal & Installation Australian Land Rover Owners Isuzu 4be1 Engine Repair Manual