Removing the Diesel Engine Head
The block head can be removed from the engine installed in the Volkswagen Transporter T4 . If the engine has been previously removed from the vehicle, the described initial operations do not need to be carried out. It is unacceptable to remove the block head if the engine temperature is more than 40ºС. On fig. 184 and 185 shows the arrangement of the heads of the blocks of both diesel engines. The sequence of removing parts is the same as the numbering of these parts in the figures.
Rice.
184 Removing and installing the block head - diesel 1.9 1 - oil fill plug, 2 - oil drain pipe, 3 - to the intake pipe, 4 - cap, 5 - nut, 10 Nm, 6 - shaped washer (lining), 7 - top gasket, 8 - valve cover, 9 - crankcase breather, 10 - valve cover gasket, 11 - head bolt, 12 - bottom gasket, 13 - high pressure fuel lines, 25Nm, 14 - injectors, 70Nm, 15 - head block, 16 - spark plug, 17 - head gasket, 18 - rear toothed belt housing, 19 - toothed belt, 20 - toothed belt tensioner pulley, 21 - nut, 45 Nm, 22 - spring latch, 23 - upper toothed belt housing, 24 - camshaft pulley
Rice.
185 Removing and installing cylinder head - diesel 2.4 1 - toothed belt cover, 2 - toothed belt, 3 - bolt, 85 Nm, 4 - camshaft pulley, 5 - rear toothed belt cover, 6 - block head, 7 - lower gasket, 8 - cap, 10 - shaped washer, 11 - top gasket, 12 - valve cover, 13 - valve cover gasket, 14 - head bolt, 15 - injection pump drive gear pulley, 16 - injection pump drive timing belt housing, 17 - bolt , 20 Nm, 18 - bolt, 100 Nm, 19 - injection pump timing belt, 20 - vacuum pump, 21 - vacuum pump pusher, 22 - o-ring, 23 - head gasket
♦ Remove the head cover.
Carefully remove the gasket, as it can be reused if it is not damaged during disassembly. Clean and degrease its seating surface. ♦ Remove the toothed belt as described in the relevant section.
Remove the camshaft sprocket. In a five-cylinder engine, remove the injection pump drive timing belt from the other side of the camshaft. These actions are described in the section on injection pump. ♦ Using a 12 mm socket for TORX bolts, unscrew the block head bolts in stages, in reverse order than shown in fig. 186 and 187. Remove the block head bolts and remove the block head from the engine housing. If necessary, loosen the head with light blows from a rubber or lead hammer. It is strictly forbidden to drive a screwdriver along the joint for the same purpose. Remove the head gasket. Thoroughly clean and degrease the head and block seating surfaces.
Rice. 186 Four-cylinder engine head bolt tightening sequence
Rice. 187 The sequence of tightening the bolts of the block head of a five-cylinder engine
Description of the T4 engine . Specifications Transporter T4 .