Belt, water pump and tensioner all changed today. It was a bit of a faff but nothing too dificult. As has been mentioned some special tools are required. The pin to locate the crank, a flywheel locking tool, a camshaft locking tool and very importantly a long bar with pins to hold the crank pulley and camshaft pulleys steady whilst loosening and re fitting all three pulleys. My workshop manual stated the crank pulley was on a taper but mine was parallel and needs 40 Nm + 90 degrees to clamp it up. Also with the crank pin in place at TDC the camshaft locking plate fitted snugly. A second pair of hands is needed to hold the thing steady as well as for dimantling the tensioners to make the new one manual. We have taken some photos and will either post them with some words on the LADS page or send them to Lowflying, or both.