100127 Removing engine from transmission and mounting engine on transmission
WM 100127 Removing engine from transmission and mounting engine on transmission
Tools
Technical values
Preliminary work
1. Engine removed. Engine/transmission unit is on the lifting platform.
2. Transport eyebolt 9700/2 must be fitted. Prepare workshop crane and lifting tackle. -> 1001IN Lifting V6 3.6-litre DFI engine with a workshop crane 1001IN Lifting V6 3.6 l DFI engine with a workshop crane
Removing engine from transmission
1. Loosen ATF line on the engine. -arrow-
ATF line on engine
2. Loosen coolant pipes on the transmission (two screws). -arrows-
Coolant pipes on converter bell housing
3. Unclip vent line on the transmission -arrow-. Unclip vent line on the front-axle final drive on the engine. -arrows-
Transmission vent line
Vent line on front-axle final drive
4. Open up heat protection and expose cable. -1 and 2-
Heat protection on cable
5. Remove heat protection panel on the exhaust manifold. To do this, remove sheetmetal holder on heat protection panel and on intake manifold -arrows-. Pull heat protection panel out of the upper clamps.
Heat protection panel on exhaust manifold
6. Spray the six nuts securing the exhaust manifold to the catalytic converter with anti-rust agent and leave it to take effect. Loosen catalytic converters on the exhaust manifolds (six nuts) -arrows- and lay catalytic converters aside towards the spring strut.
Flange between pre-catalytic converters and exhaust manifolds
7. Remove starter. -> 276019 Removing and installing starter - section on "Removing" Service and Repair
8. Loosen three screws on the converter threaded joint through the installation opening on the starter. Turn and counter at the vibration balancer.
9. Remove screws between the engine and transmission until there is one screw left at the side. => Side locking screw between engine and transmission
Side locking screw between engine and transmission
10. Mark engine mountings (hydraulic mounts) according to installation position using a felt-tip pen. Remove both nuts and all four screws on the engine mountings (hydraulic mounts). => Engine mountings
Engine mountings
11. Secure engine to the lifting tackle and to the workshop crane => Securing engine to workshop crane. For exact position, see -> 1001IN Lifting V6 3.6-litre DFI engine with a workshop crane 1001IN Lifting V6 3.6 l DFI engine with a workshop crane
Securing engine to workshop crane
CAUTION
Unequal weight distribution of the engine/transmission unit can cause the unit to fall out of the lifting platform supports while it is being raised or lowered.
-> Raise and lower the unit very carefully.
-> Get a second person to perform a visual inspection.
-> Ensure that the axle points are seated correctly with respect to the supports.
-> Make sure the rear supports are seated correctly on the transmission cross member, particularly when lowering the transmission onto the wooden base (the engine has a strong levering effect).
12. Carefully lift the engine/transmission unit and remove the two engine mountings (second worker presses suspended engine up slightly). Support the transmission by placing a wooden plank on the axle-body cross member underneath it and slowly lower the engine/transmission unit.
13. Remove the last screw between the engine and transmission.
14. Press the torque converter off the drive plate through the installation opening on the starter. => Pressing off torque converter
Pressing off torque converter
15. Remove the engine with the workshop crane.
Transmission on front axle without engine
Mounting engine on transmission
CAUTION
Unequal weight distribution of the engine/transmission unit can cause the unit to fall out of the lifting platform supports while it is being raised or lowered.
-> Raise and lower the unit very carefully.
-> Get a second person to perform a visual inspection.
-> Ensure that the axle points are seated correctly with respect to the supports.
-> Make sure the rear supports are seated correctly on the transmission cross member, particularly when lowering the transmission onto the wooden base (the engine has a strong levering effect).
1. Insert special tool centering pin 9689 into the torque converter. Roughly position the torque converter and drive plate so that the centering pin passes through a bore on the drive plate.
Torque converter centering pin
2. Lift the engine with the workshop crane and move it into installation position with respect to the transmission. Put engine and transmission together. The dowel sleeves on the engine must slip perfectly into the bores on the transmission bell housing.
3. Fit and screw in fastening screws for securing transmission to engine. This involves screwing in four screws on the engine side and six on the transmission side. For details of tightening torques, see -> 373527 Removing and mounting transmission - section on "Mounting"
Fastening screws securing transmission to engine
4. Remove special tool centering pin 9689 and fit torque converter screws. For details of tightening torques, see -> 373527 Removing and mounting transmission - section on "Mounting"
5. Fit engine mountings.
5.1. Carefully lift on engine/transmission unit.
5.2. Remove wooden block under transmission.
5.3. Fit engine mountings according to markings applied during removal. Lug on engine mountings fits into the hole on the engine support arm. Fit screws and new nuts.
Engine mountings
5.4. Carefully lower engine/transmission unit.
5.5. Screw on engine mountings. => Tightening torque: 75 Nm (56 ftlb.) => Tightening torque: 60 Nm (44 ftlb.)
6. Fit starter. -> 276019 Removing and installing starter - section on "Installing" Service and Repair
7. Fit new seals and nuts on catalytic converters and move into installation position. Tighten the six nuts securing the exhaust manifolds to the catalytic converters -arrows-.=> Tightening torque: 40 Nm (30 ftlb.)
Flange between pre-catalytic converters and exhaust manifolds
8. Fit heat protection panel on exhaust manifold. Press heat protection panel into the upper sheetmetal clamps. Then fit sheetmetal holder on heat protection panel and on intake manifold -arrows-. => Tightening torque: 20 Nm (15 ftlb.)
Heat protection panel on exhaust manifold
9. Route lambda sensor cable through the heat protection and close heat protection. => Heat protection on cable
Heat protection on cable
10. Clip in vent line on the transmission -arrow-. Clip in vent line on front-axle final drive at the engine. -arrows-
Transmission vent line
Vent line on front-axle final drive
11. Secure coolant pipes on the transmission (two screws). -arrows- => Tightening torque: 9 Nm (6.5 ftlb.)
Coolant pipes on converter bell housing
12. Fit ATF line on the engine. -arrow- => Tightening torque: 10 Nm (7.5 ftlb.)
ATF line on engine
Subsequent work
1. Transport eyebolt 9700/2 must now be removed. For details, see -> 1001IN Lifting V6 3.6-litre DFI engine with a workshop crane 1001IN Lifting V6 3.6 l DFI engine with a workshop crane
2. Install engine. -> 100119 Removing and installing 3.6-litre DFI engine - section on "Installing" 100119 Removing and Installing 3.6-Litre DFI Engine