Land Rover Defender 90 110 Workshop 1984 Rover Manual
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Page 101
2.25 LITRE PETROL AND DIESEL ENGINE FIT THE CAMSHAFT 1. Lubricate the camshaft bearings and with care, insert the camshaft into the cylinder block. Temporarily secure a new thrust plate with the two bolts. .. 2. To check the camshaft end-float, fit the woodruff key and temporarily fit the camshaft chain wheel and mount a dial test indicator, as illustrated, so that the stylus rests in a loaded condition upon the machined face of the cylinder block. Zero the dial...
Page 102
El 2.25 LITRE PETROL AND DIESEL ENGINE FIT THE FLYWHEEL 1. Examine the flywheel and crankshaft mating faces and remove any burrs or imperfections that could prevent the flywheel locating correctly. Check that the dowel is in position. 2. Offer up the flywheel to the crankshaft and secure with the reinforcing plate and retaining bolts, Evenly tighten the bolts to the correct torque figure. 3. To check the flywheel run-out, mount a dial test indicator so that the...
Page 103
..ltr., .... . . ,I: .:?; ?: ,.....,. i .. ::?.I ,a..... T ... . I . 2.25 LITRE PETROL AND DIESEL ENGINE 1121 Petrol and Diesel engines 4. Clean the cylinder head and cylinder block mating faces. Position a ncw cylinder head gasket on the cylinder block with the word Diesel or Petrol uppermost. 5. Lower the cylinder head onto the cylinder block using two long bolts to facilitate accurate positioning of the head. 6. Fit the cylinder head retaining bolts except those...
Page 104
1121 2.25 LITRE PETROL AND DIESEL ENGINE Diesel engines 11. Manufacture a suitable pointer, and attach one end to the top bolt hole in the cylinder block and the pointer close to the camshaft chain wheel, 21s il Ius t ra ted . 12. Turn the camshaft until the valve is fully open ;IS indicated by maximum reading on the dial gauge. 13. Because the top of the cam is ‘flat’ the cnmshaft can be turned ;i furthcr four degrees without movement of the dial gauge needle. Since an...
Page 105
2.25 LITRE PETROL AND DIESEL ENGINE 16. Using a rule, determine the exact mid-point between the two marks and make a third mark. - .. 17. Remove the dial indicator, and turn the camshaft until the middle mark lines up with the pointer. The number one cylinder exhaust tappet roller should now be resting in the centre of the four degree flat period of the cam and the camshaft and crankshaft are in their correct relationship. 18. Fit the crankshaft chain whee! with...
Page 106
11211 2.25 LITRE PETROL AND DIESEL ENGINE ADJUST TAPPET CLEARANCES Petrol and diesel engines 1. If the crankshaft is rotated with excessive valve clearances, it is possible that the push rods may become dislodged from the tappet seating and fracture the tappet slide. To prevent damage, eliminate all clearance from any loose rockers bcfore turning the crankshaft to adjust the clearances. 2. Turn the engine over until number eight valve (counting from front of...
Page 107
2.25 LITRE PETROL AND DIESEL ENGINE 4. Fit the thermostat into its housing and using new joint washers secure the assembly, together with the elbow, to the cylinder head. Tightcn the three bolts to the correct torque. Connect the thermostat elbow to the water pump with a new hose and secure with hose clips. FITTHESKEW GEAR Petrol engine I 1. Turn the crankshaft to bring number one piston to T.D.C. with number four cylinder valves on thc rock. Check that the...
Page 108
2.25 LITRE PETROL AND DIESEL ENGINE Diesel engine 6. Turn the crankshaft in the direction of rotation until both valves of number one cylinder are closed and the piston is ascending the bore on the compression stroke. 7. Continue to turn the crankshaft until the timing pointer aligns with the 13 mark on the flywheel, that is 13 BTDC. This must be done carefully. If the flywheel in inadvertently turned too far and the timing mark goes past the pointer do not turn...
Page 110
1121 2.25 LITRE PETROL AND DIESEL ENGINE 3. Insert the timing gauge, 605863, into the driving gear, then twist gauge in a clockwise direction to take up backlash and any wear in the gears. 4. Hold in this position, then, if necessary, slacken off bolts retaining the timing pointer on the side of the cylinder block. Adjust pointer so that it coincides with the line on the timing gauge, as illustratcd, then retighten the bolts and remove the timing gauge. Using...