Removal and Replacement

Crankshaft seal rear, replacing

Special tools:
999 5112 GEAR SECTOR 999 5112 Gear Sector
999 5651 Extractor 999 5651 Extractor
999 1801 STANDARD SHAFT 999 1801 Standard Shaft
999 5678 Special screw 999 5678 Special Screw
999 7174 Drift 999 7174 Drift

951 2050 BEVEL PROTRACTOR 951 2050 Bevel Protractor

Note! As the illustrations in this service information are used for different model years and / or models, some variation may occur. However, the essential information is always correct.

Removing the flywheel and carrier plate





Remove the gearbox:
- manual transmissions . See Transmission, removing Transmission, Removal
- automatic transmissions . See Gearbox, removing Transmission, Removal.
Remove the flywheel / carrier plate. Use gear sector 999 5112 GEAR SECTOR 999 5112 Gear Sector as a counterhold when slackening off the screws.

Removing the seal





Note! Do not damage the mating surfaces of the crankshaft and cylinder block

Remove the old seal using extractor 999 5651 Extractor 999 5651 Extractor.
Clean around the crankshaft flange at the front and rear. Remove any thread sealant residue from the screw holes.
If necessary wash off the oil on the rear cylinder block surface and the gearbox clutch housing. Blow clean using compressed air.





Caution! When cleaning work around the flange, not in and out. No grinding tools or similar may be used. It is extremely important that there is no thread sealant residue or other dirt. This could cause leakage.

Note! To clean the crankshaft, use cloth 9511024.

Installing the sealing ring

Caution! Only Volvo approved engine oil may be used. Grease must not be used at all. It attracts dirt and results in the build up of coke.

Lubricate the sealing ring mating surface against the cylinder block and the lips of the seal.








Thread the seal onto the beveled section of the inner section of tool 999 7174 Drift 999 7174 Drift with the felt side of the seal outwards. Install the drift on the crankshaft, 2 x screws, for the flywheel. Pull in the seal using the outer section of the drift: 999 7174 Drift 999 7174 Drift using the screw in the center of the tool. The seal is in position when the outer drift bottoms out against the inner drift. Remove the tool: 999 7174 Drift 999 7174 Drift. Discard the old screws for the flywheel.

Installing flywheel and carrier plate





Caution! Ensure that the surface of the crankshaft and the mating surfaces for the flywheel / carrier plate are clean. Ensure that there is no thread sealant residue in the screw holes.

Install:
- the flywheel and carrier plate
- the 3 studs 999 5678 Special screw 999 5678 Special Screw distributed as illustrated. Turn the short thread length towards the crankshaft.

Note! Check that the locating pin on the crankshaft is positioned opposite the hole in the flywheel / carrier plate. The position of the guide hole is marked.





Caution! It is important that the flywheel and carrier plate bear on the crankshaft flange before the other screws are installed. Always use new screws. Ensure that the thread sealant on the new screws is intact. If not apply a few drops of sealant 1161056 to the thread.

- Align gear sector: 999 5112 GEAR SECTOR 999 5112 Gear Sector.
- Pull the flywheel / carrier plate towards the crankshaft using the 3 nuts on special tool 999 5678 Special screw 999 5678 Special Screw. The turned section of the nut must be turned towards the flywheel / carrier plate.
- Install the other screws. Tighten. See Tightening torque, B5234T9 Tightening Torque.
- Replace the 3 special screws with new standard screws. Tighten. See Tightening torque, B5234T9 Tightening Torque.
- Then angle tighten all 10 screws crosswise. Use 951 2050 BEVEL PROTRACTOR 951 2050 Bevel Protractor. Tighten. See Tightening torque, B5234T9 Tightening Torque.
- Ensure that the flywheel sensor and bracket are installed. Install the clutch driven plate and clutch.

Installing the gearbox

Install the gearbox:
- manual transmissions . See Transmission, installing Transmission, Installation
- automatic transmissions . See Gearbox, installing Transmission, Installation.

Checking the engine:
Test drive the car to check the function of the engine and the gearbox.