GENERAL SPECIFICATIONS
| Item | Specification |
|---|---|
| Power Transfer Unit (PTU) Case Vent | |
| Installed height mm (in) | A |
GENERAL SPECIFICATIONS
a Refer to the procedures in this article.
TORQUE SPECIFICATIONS
| Description | Nm |
|---|---|
| Catalytic converter bracket bolts | 25 |
| Catalytic converter bracket nuts | 36 |
| Crossmember brace bolts | 40 |
| Drain plug (automatic transaxle) | 14 |
| Fill plug | 34 |
| Power Transfer Unit (PTU) cover bolts (automatic transaxle) | 32 |
| PTU heat shield bolts | 11 |
| PTU-to-engine bracket bolt | 48 |
| PTU-to-transaxle bolts | 70 |
| PTU-to-transaxle bolt (M10) | 47 |
| Transfer case vent tube bolt (automatic transaxle) | 14 |
TORQUE SPECIFICATIONS
The Power Transfer Unit (PTU) is a gearbox that attaches to the transaxle. On automatic transaxle vehicles, the RH intermediate shaft passes through the PTU and engages the differential side gear as in normal Front Wheel Drive (FWD) applications. The PTU directs power to the rear driveshaft through a helical gear spline coupled to the transaxle differential case, a helical gear drop (idler gear), and hypoid/helical ring gear assembly and pinion set.
Note. Repair of the PTU is limited to seals, gaskets and output flange. If any of the geared components, bearings, case cover or internal shafts fail, a new PTU must be installed.
The PTU is sealed from the transaxle and has its own oil sump. The PTU on an automatic transaxle vehicle uses 0.35L (12 oz) of Motorcraft SAE 75W-140 synthetic lubricant. The PTU on a manual transaxle vehicle uses 0.35L (12 oz) of Motorcraft 80W-90 synthetic lubricant.
Refer to FOUR WHEEL DRIVE (4WD) SYSTEMS article.
| Item | Specification |
|---|---|
| Motorcraft SAE 75W-140 Synthetic Rear Axle Lubricant XY-75W140-QL (US); CXY-75W140-1L (Canada) (vehicles with the trailer towing option or 4:10 ratio) | WSL-M2C192-A |
| Silicone Gasket and Sealant TA-30 | WSE-M4G323-A4 |
Material
| CAUTION | New power transfer unit (PTU) lubricant must be added any time the PTU has been submerged in water. |
Note. The power transfer unit (PTU) is lubricated for life and is not to be checked unless a leak is suspected or a repair is necessary.
- With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to «JACKING AND LIFTING»(/mercury/mariner/ii-2007-2010/remont/hoistjack/#jacking-and-lifting) article.
- Remove the drain plug and drain the fluid.
- Apply silicone sealant to the drain plug threads and install the drain plug. Tighten to 14 Nm (10 lb-ft).
- Remove the fill plug and fill the PTU with specified lubricant.
- Apply silicone sealant to the fill plug and install the plug. Tighten to 34 Nm (25 lb-ft).
| Item | Specification |
|---|---|
| Motorcraft SAE 80W-90 Premium Rear Axle Lubricant XY-80W90-QL (US); CXY-80W90-1L (Canada) | WSP-M2C197-A |
Material
| CAUTION | New power transfer unit (PTU) lubricant must be installed any time the PTU has been submerged in water. |
Note. The power transfer unit (PTU) is lubricated for life and is not to be checked unless a leak is suspected.
- With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to «JACKING AND LIFTING»(/mercury/mariner/ii-2007-2010/remont/hoistjack/#jacking-and-lifting) article.
- Remove the fill plug and fill the PTU with rear axle lubricant.
- Install the fill plug and gasket. Tighten to 48 Nm (35 lb-ft).