Does your throttle feel rough to the touch, when you press down do you hear squeaks, or does the accelerator pedal simply moves wherever it likes? 

If any of these occur, then perhaps it is time you treated yourself to one of these Accelerator Pedal / Throttle Upgrade kits. Manufactured in the UK by Buttys Bits, so you know they are well-engineered and fit for purpose. 

These throttle assemblies are made from high grade steel, and laser-cut to give beautifully sculpted components. The bracket rotates on a sealed bearing and is attached to the throttle pedal by rose joints. These components when bolted together and fitted into position give a fantastic smooth and precise feel to the throttle. Not only does this make the experience of driving your Bus so much better but they give you better control of the engine throughout the rev range.