To remove the oil pump, you must first disconnect the
Timing Belt and crankshaft sprocket. Then, take out the oil pan. Then, the alternator and its supports can be removed. Unbolt power steering pump and set aside without removing hoses. Remove power steering pump bracket. Detach the support bracket for oil pick-up tube and then unscrew bolts holding it on an oil pump. Take out all front bolts of an engine block that hold oil pump to it . Pry the oil pump outwards to break the gasket seal and detach it from dowels in engine block . Use a scraper to remove old gasket material and sealer from both surfaces where oil pumps contact engine blocks . Lacquer thinner or acetone should be used to clean these mating surfaces. If you want to check an oil pump, get off screws in rear cover and wash all parts with solvent . Check wear and damage . Remove cap of the oil pressure regulator along with washer , spring as well as valve . Inspect the sliding surface of this valve for wear as well as deformation and also check spring for free length . Regulator valve should be replaced if any of those parts are damaged Every other part including valves must have clearances checked to see if they meet specific criteria that require such test whereafter measurements are made forcefully tightened into given areas with means of tightening tools These figures are compared against hard copy measurements usually saved for future reference during any breakdown because even slightest differences mean lots more work ahead somewhere down line so this prevents need further trips back Each time one opens up his/her machine one needs start again by assembling new set including complete special wrenches Care should be used when installing nuts on both ends since some of them may already have been removed earlier during disassembly process Since each end is equipped with unique type fasteners made specifically for equipment being repaired do not mix these two types up Reinstall lower timing belt rear seals between rubber end cap of oil pump and the rearmost timing cover Finally, install the oil pick-up tube with a new O-ring on its flange.