Mounting Engine On Transmission

Insert special tool centring pin 9689 into the torque converter. Roughly position the torque converter and drive plate so that the centring pin passes through a bore on the drive plate.

Fig 1: Identifying Torque Converter Centring Pin
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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.
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 → WM 373527 REMOVING AND MOUNTING TRANSMISSION (CAYENNE TIP, CAYENNE S TIP, CAYENNE TURBO, CAYENNE GTS TIP, CAYENNE TURBO S)

Fig 2: Fastening Screws Securing Transmission To Engine
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Remove special tool centring pin 9689 and fit torque converter screws. For details of tightening torques, see → WM 373527 REMOVING AND MOUNTING TRANSMISSION (CAYENNE TIP, CAYENNE S TIP, CAYENNE TURBO, CAYENNE GTS TIP, CAYENNE TURBO S)
Fit engine mountings.
1. 5.1. Carefully lift on engine/transmission unit.
2. 5.2. Remove wooden block under transmission.
3. 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.
  
  Fig 3: Locating Engine Mountings
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4. 5.4. Carefully lower engine/transmission unit.
5. 5.5. Screw on engine mountings. → Tightening torque: 75 Nm (56 ft lbs.) → Tightening torque: 60 Nm (44 ft lbs.)
Fit starter. → Installing The Starter
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 ft lbs.)

Fig 4: Locating Flange Between Pre-Catalytic Converters And Exhaust Manifolds
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Fit heat shield on exhaust manifold. Press heat shield into the upper sheetmetal clamps. Then fit sheetmetal holder on heat shield and on intake manifold -arrows- . → Tightening torque: 20 Nm (15 ft lbs.)

Fig 5: Locating Upper Sheetmetal Clamps
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Route oxygen sensor cable through the heat protection and close heat protection. →

Fig 6: Identifying Heat Protection On Cable
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Clip in vent line on the transmission -arrow- . Clip in vent line on front-axle final drive at the engine. -arrows-

Fig 7: Locating Transmission Vent Line
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Fig 8: Locating Vent Line On Front-Axle Final Drive
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Secure coolant pipes on the transmission (two screws). -arrows- → Tightening torque: 9 Nm (6.5 ft lbs.)

Fig 9: Locating Coolant Pipes On Converter Bell Housing
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Fit ATF line on the engine. -arrow- → Tightening torque: 10 Nm (7.5 ft lbs.)

Fig 10: Fitting ATF Line On Engine
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