Remove the drive belt of the generator and coolant pump, and then the generator with the bracket. After disconnecting the fluid supply pipe from the heater from the pump and the exhaust manifold, remove the coolant pump. From the cylinder head, remove the outlet pipe of the cooling jacket and the pipeline for draining fluid to the heater.
With tool A.60312, unscrew and remove the oil filter with gasket (pic. 45). Turn out the sensor 20 (see fig. 24) oil pressure warning light, remove the crankcase breather cap, oil sump and oil pump. Remove the oil separator drain tube retainer attached to the lower plane of the cylinder block, and remove the crankcase ventilation oil separator.
Remove the crankshaft pulley, securing the flywheel with lock A.60330/R (see fig. 48) and unscrewing the ratchet with the key A.50121.
Remove the cylinder head cover and camshaft chain cover. Then turn out bolts of fastening of sprockets of a camshaft and an oil pump drive shaft. Loosen cap nut 5 (pic. 46) chain tensioner 1, unscrew the nuts 4 securing it to the cylinder head, remove the tensioner and, having unscrewed the bolt 2, remove the shoe 3 of the chain tensioner. Unscrew the chain stop pin, remove the oil pump and camshaft drive sprockets and remove the chain.
Loosen the camshaft thrust flange nuts. Having unscrewed the fastening nuts, remove the camshaft bearing housing. Unscrew the stud nuts and, having removed the thrust flange, carefully, so as not to damage the surface of the bearing housing supports, remove the camshaft. Unscrew the cylinder head bolts and remove it together with the exhaust manifold and intake manifold.
Key 4 (pic. 47) unscrew the two bolts 2 fastening the thrust flange 1 of the oil pump drive shaft, remove the flange and remove the shaft 3 from the cylinder block. The universal puller A.40005/1/7 from the set A.40005 removes the sprocket from the crankshaft. Unscrew the nuts of the connecting rod bolts, remove the connecting rod caps and carefully remove the pistons with connecting rods through the cylinders. When performing this operation, it is recommended to mark the piston, connecting rod, as well as the shells of the main and connecting rod bearings in order to install them in their original place during assembly.
Install the latch 5 in the hole of the cylinder block (pic. 48), with the key 1 unscrew the bolts 3, remove the washer 4 and the flywheel 2 of the crankshaft, and then the front cover 6 of the clutch housing. Ejector A.40006 (in fig. 49) remove the gearbox input shaft bearing from the socket in the crankshaft. Remove the holder 2 of the rear crankshaft oil seal.
Unscrew the bolts of the main bearing caps, remove them together with the lower shells, then remove the crankshaft, upper shells and thrust half rings on the rear support.