Service procedures - engine
19
Remove tool 3590 from the flywheel casing and fit the plug.
20
Remove the clamping tools from the cylinder liner when the cylinder head is to be refitted.
Group 21
2
Install the bearing housing on the engine block. Tighten the screws until the bearing housing is tight against the engine block.
Sealant between the fuel injection pump bearing housing and the cylinder block TAD1630/TID162/
TWD1620/ TWD1630/
TD164KAE
In case the fuel injection pump bearing housing has to be removed, new guide sleeves should be installed and sealant applied prior to assembly on the engine block.
Note: The fuel injection pump bearing housing is co-machined with the engine block and therefore should not be replaced separately.
Installation
3
Install the transmission gear casing. Se ”Sealant, timing gear casing, replacing”.
4
Mount the screws through the timing gear casing. Tighten the screws until the bearing housing is tight against transmission gear casing. Tighten the screws alternating in three steps to the torque indicated below. Start by tightening the screws going through the bearing housing and the engine block.
Screws: Bearing housing - cylinder block
Torque: 53 ±5 Nm (39 ±4 ft-lb)
Screws: Transmission gear casing - bearing housing
Torque: 35 ±4 Nm (26 ±3 ft-lb)
1
Apply a 2 mm (0.080") thick string of sealant on the fuel injection pump bearing housing. Install and tighten the screws within 20 minutes.
48
Group 21 Service procedures - engine
Sealant between the fuel injection pump bearing housing and the cylinder block TAD1631
4
Clean bearing housing as well as cylinder block and timing cover contact surfaces.
Install a new locating pin and a new guide sleeve.
5
Note: The fuel pump bearing housing is co-machined with the engine block and therefore should not be replaced separately.
1
Remove pivot shaft from bearing housing.
2
Remove screws and carefully remove bearing housing from timing cover and cylinder block.
3
Apply a 2 mm (0.08") bead of sealing compound (part No.
1161277) around the cylinder block and timing cover. See figure.
Note: Bearing housing and thrust washer screws must be installed and tightened within. 20 minutes.
6
Remove locating pin and guide sleeve from cylinder block.
Install bearing housing with a new O-ring against the timing cover. Tighten screws in cylinder block.
Note: Tighten screws alternately until the bearing housing is in contact with the cylinder block.
Then torque screws alternately in three stages to 65 Nm
(47.9 ft-lb).
7
Replace bearing housing seal ring.
49
Service procedures - engine
8
Clean the bearing housing carefully. Lubricate bearing bushings and shaft.
9
Install pivot shaft in bearing housing. Install thrust washer and torque to 24 Nm (17.7 ft-lb).
Seal on output shaft from timing gear to injection pump,
TAD/1630/ TID162/TWD1620/
TWD1630/ TD164KAE, replacing
Special tools: 999 8011, 999 8012, 999 8017
1
Disconnect the batteries.
2
Remove the protection plate for the pump coupling.
Group 21
5
Remove the pump coupling and the flange. Clean the shaft from paint before fitting puller 999 8011 to remove the seal.
3
Remove the bolts (four) holding the pump coupling.
Note: Do not remove the bolts which hold the flange discs to the flange since this would alter the setting of the injection pump. Do not turn the injection pump or the engine.
4
Remove the clamp screw holding the flange to the shaft.
6
Remove the seal by screwing puller 999 8011 into the seal.
Note: Push simultaneously on puller 999 8017 so that the puller threads cut into the steel ring of the seal. Remove the seal by threading in the screw.
7
Lubricate the lips of the new seal. Oil the shaft. Fit the seal to the shaft.
50
Group 21 Service procedures - engine
Seal on output shaft from timing gear to injection pump
TAD1631, replacing
Special tools: 999 8011, 999 8012
To replace the sealing ring in the bearing housing the fuel injection pump and pump coupling must be removed. See ”Removing the injection pump”.
1
8
Push in the seal using tool 999 8012 and 999 8017 until tool 999 8017 bottoms against the shaft.
9
Fit the flange to the shaft.
10
Fit and tighten by hand the bolts on the pump coupling.
Screw puller 999 8011 into the sealing using a drift. Press on the extractor at the same time so that its threads cut into the steel ring of the seal.
2
11
Torque the clamp screw to 85 Nm (62.7 ft-lb). Torque the bolts on the pump coupling to 56 Nm (41.3 ft-lb).
12
Check the setting of the injection pump. See ”Fuel System, setting the injection angle”.
13
Fit the protection plate for the pump coupling.
14
Connect the batteries.
Pull out the old seal by unscrewing the extractor. Hold the outside of the extractor in place with the drift.
3
Clean the shaft and the seal seat. Lubricate the new seal and shaft.
Note: Make sure no contaminants enter the housing.
51
Service procedures - engine
4
Locate seal ring on shaft and tap it in until the seal is level with the bearing housing. Use drift 999 8012.
5
Install flange, pump coupling and injection pump. Check the injection angle, se ”Fitting and adjusting the injection pump”.
Group 21
52
