1 Remove the oil dipstick, oil sump and the oil pick-up/strainer assembly (see Section 12).
2 Remove the timing belt, idler pulley and spring, crankshaft pulley, crankshaft sprocket (see Section 5) and, on 1.3 litre engines, undo the nut and remove the oil pump sprocket.
5 Where fitted, remove the crankshaft position sensor (see illustration). Unbolt and remove the oil dipstick pipe. On 1.3 litre engines, remove the oil pressure relief valve from the engine block.
6 Remove the bolts and detach the oil pump body from the engine (see illustration). You may have to pry carefully between the main bearing cap and the pump body with a screwdriver, or tap behind the oil pump with a soft-faced hammer. On 1.3 litre engines, remove the O-ring.
5 Use a scraper to remove all traces of sealant and old gasket material from the pump body and engine block, then clean the mating surfaces with lacquer thinner or acetone.
6 Remove the five Torx screws (1.6 litre engine) and separate the pump cover from the body. Lift out the drive and driven rotors (see illustrations).
7 Remove the oil pressure relief valve circlip retainer, spring and piston.
Warning: The spring is tightly compressed - be careful and wear eye protection.