what is your fault,as adjuster only alters pedal height [or is this your problem?] one common fault is for operating lever to break where it fits to withdrawal shaft-on top of g/box.
k
March 2011
If you look up under the dash,there should be a 6mm allen key bolt on the clutch pedal.
Adjust this clockwise,i would advise you to adjust it with 1/4 of a turn at a time.
The clutch pedal should be no higher than the brake pedal and it should have some free play.
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Try fixfault.com to fix vans.