OIL PUMP (AUTOMATIC)

Removal The oil pump is easily removed once the converter housing has been detached from the engine transmission unit as detailed previously. Lever the main oil feed pipe from between the oil ump and the transmission casing . Using a suitable size of Allen key, remove the socketheaded screws securing the oil pump to the cylinder block, and -withdraw the pump and gasket. The pump is driven from the camshaft by a splined 'star-drive' type coupling and this coupling may either be removed with the pump or remain in the end of the camshaft. In the latter case, the coupling can be easily withdrawn if required. Installation Installation is a simple reversal of the removal procedure. Use a new gasket between the pump and the cylinder block face. Ensure that the gasket is correctly fitted so that the holes align correctly with the pump inlet and delivery ports. Ensure that the splined shaft engages correctly with the coupling, and that the coupling registers correctly in the end of the camshaft. Check that the oil seals on and in the oil feed pipe are in good condition, and renew if necessary . Overhaul The pump assembly should be dismantled and inspected in a similar manner to that described previously for the oil pump on manual models. In this case the pump inner rotor is keyed to the pump drive shaft .

TRANSMISSION UNIT (AUTOMATIC)

Once the engine/transmission unit has been removed from the car, the transmission is easily separated from the engine as detailed below. Removal Remove the torque converter and converter housing, following the relevant steps given under the previous headings. It should be noted that the engine oil must be drained from the power unit during removal. If required, the converter output gear can be removed from the end ok the crankshaft, together with its thrust washers. Disconnect the external oil feed pipe from the adaptor on the transmission casing and the connection on the cylinder block . Lever the main oil feed pipe from the oil pump and the transmission case . Remove the bolts securing the radiator to the lefthand engine mounting bracket and detach the radiator assembly. Remove all the nuts, bolts and spring washers securing the engine to the transmission casing, then lift the engine to separate it from the transmission unit. Remove the gaskets from the joint faces, and the oil seal from the front main bearing cap. Installation Installation is basically a reversal of the removal procedure. Ensure that the joint faces on both the crankcase and transmission housing are clean and free from old gasket material before fitting new gaskets on the transmission casing. Check that the oil feed 0-ring is in good condition and correctly in place at the oil feed pick-up pipe hole on the transmission casing flange. Lubricate the new oil sealing strip before fitting it in position at the engine front main bearing. Lower the engine onto the transmission unit and fit and tighten the securing bolts and nuts. Check that the oil seals on and in the main oil feed pipe are in good condition, and renew as necessary. Refit the oil feed pipe between the oil pump and the transmission case . Also reconnect the external oil feed pipe between the cylinder block and the adaptor on the transmission casing . If a replacement transmission unit is being fitted, it will be necessary to check the idler gear end-float before finally assembling the converter housing to the unit. The procedure for checking and adjusting the idler gear endfloat is the same as that already described for manual transmission models and back-reference should be made for details. The transmission input gear is preloaded, by the use of a selective shim pack, but special tools are required to set the preload for individual gears. It is therefore recommended that this operation be left to an Authorised Dealer or Transmission Specialist.