Tightening torques and rotation angles for Porsche 944
| Engine - Crankshaft, Crankcase | Thread | Tightening torque Nm | Remark |
|---|---|---|---|
| Crankcase upper and lower part bolting (stud bolts) | M 12 x 1.5 | 1st stage 30 | - |
| 2nd stage 60° | - | ||
| M 10 | 1st stage 20 | - | |
| 2nd stage 50 | - | ||
| M 8 | 20 | - | |
| M 6 | 10 | - | |
| Rotating body on balance shaft | M 6 | 10 | with Loctite 270 secured |
| Model year '82 - '85 | |||
| Cover for balance shaft housing on crankcase upper part | Hex bolt M 8 | 1st stage 15 | - |
| 2nd stage 20 | - | ||
| Stud bolt
M 8 |
1st Stage 15 | - | |
| Stage 2 30 | - | ||
| from model year '86 (balance shafts with separate bearing bridges) | |||
| Balance shaft bearing bridges on upper crankcase | M 8 | Stage 1 15 | - |
| 2nd stage 33 | - | ||
| Cover for balance shaft housing on crankcase upper part | M 6 | 10 | - |
| M 8 x 55 | 1st stage 15 | - | |
| 2nd stage 20 | - | ||
| from model year '86 (balance shafts with separate bearing bridges) | |||
| Bearing bridge for balance shafts on upper crankcase | M 8 x 58 | 1st stage 15 | - |
| 2nd stage 33 | - | ||
| Bearing housing left and right on crankcase upper part | M8 | 20 | - |
| Cylinder head on crankcase upper part | Thread | Tightening torque Nm | Remark |
|
Tightening sequence |
|||
| Engine type M 44. 01 - 04 | 1st stage 20 | ||
| 2nd stage 50 | |||
| 3rd stage 90 | |||
| Engine type M 44. 05 - 08 | 1st stage 20 | ||
| 2nd stage 50 | |||
| 3rd stage 90 | |||
| Engine type M 44. 05 - 10 | 1st stage 20 | ||
| 2nd stage 90° | |||
| 3rd stage 90° | |||
| Engine type M 44. 11/12 (2.7l) | 1st stage 20 | ||
| 2nd stage 60° | |||
| 3rd stage 60° | |||
|
Tightening sequence for 16-valve (S and S2) |
|||
| Engine type M 44. 40 | 1st stage 20 | ||
| 2nd stage 90° | |||
| 3rd stage 90° | |||
| Engine type M 44. 41 | 1st Stage 20 | ||
| 2nd Stage 60° | |||
| 3rd Stage 90° | |||
| Cylinder Head General | Thread | Tightening Torque Nm | Remark |
| Intake manifold to cylinder head | M 8 | 20 | - |
| Connection plug for heater inlet to cylinder head | M 8 | 20 | - |
| Fitting for coolant pipe | M 8 | 20 | - |
| Camshaft housing to cylinder head | M 8 | 20 | - |
| Connecting bolts to camshaft housing | M 8 x 1.5 | 40 | - |
| Camshaft bearing to camshaft housing | M 6 | 8 | - |
| Camshaft sprocket to camshaft Hex socket screw | M 10 | 45 | - |
| Camshaft sprocket to camshaft Internal spline screw | M 10 | 65 - 70 | - |
| Bracket to camshaft bearing | M 6 | 8 | - |
| Connecting piece to drive | M 5 | 5 | secured with Loctite 221 |
| Distributor rotor on connecting piece | M 4 | 4 | self-locking |
| Transport bracket on cylinder head | M 6 | 8 | - |
| Spark plugs | M 14 x 1.25 | 25 - 30 | - |
| Fuel system | Thread | Tightening torque Nm | Remark |
| Diaphragm damper and pressure regulator on fuel manifold | M 16 x 1.5 | 30 | - |
| Cap nut on fuel manifold | M 12 x 1.5 | 12 | - |
| Exhaust system | Thread | Tightening torque Nm | Remark |
| Sealing nut on catalytic converter | M 14 x 1.5 | 30 | - |
| all other screws and nuts | M 6 | 8 + 2 | - |
| M 8 | 20 + 2 | - | |
| M 10 | 40 + 5 | - | |
| Engine general | Thread | Tightening torque Nm | Remark |
| Camshaft bearing on cylinder head 16V | M 8 | 20 | - |
| Hex socket screws for chain tensioner 16 V | M 6 | 10 | - |
| Hollow screw / chain tensioner 16 V | M 8 x 1 | 10 | - |
| Cover for cylinder head 16 V | M 6 | 10 | - |
| Connecting rod bolt Verbusrip nut | M 10 x 1.25 | 75+5 | - |
| Connecting rod bolt with smooth bearing surface | M 10 x 1.25 | 57+5 | - |
| Water drain plug in upper crankcase | M 8 | 20 | - |
| Oil pan to crankcase | M 6 | 1st stage hand-tight | - |
| 2nd stage 4 | - | ||
| 3rd stage 10 | - | ||
| Oil pan insert to oil pan | M 5 | 6 | secured with Loctite 270 |
| Oil drain plug | M 20 x 1.5 | 50 | - |
| Engine mount left and right on crankcase | M 10 | 48 | - |
| Flywheel on crankshaft | M 10 x 1.25 | 90 | - |
| Sensor bracket on crankcase | M 8 | 20 | - |
| Gear on crankshaft | M 16 x 1.5 | 210 | - |
| Sensor on holder | M 6 | 8 | - |
| Pulley on gear | M 6 x 25 | 13 | - |
| Connecting piece to drive | M 5 | 5 | - |
| Distributor finger to connecting piece | M 4 | 4 | - |
| Transport bracket to cylinder head | M 6 | 8 | - |
| Gear to balance shaft | M 10 | 45 | - |
| Tension pulley on bearing housing | M 10 | 45 | - |
| Water pump on crankcase | M 6 | 8 | secured with Loctite 270 |
| Running roller on water pump housing | M 10 | 45 | - |
| Timing belt cover on cylinder head | M 6 | 8 | - |
| Knock sensor 16 V | M 8 | 20 | Original screw without washer |
| Hall sensor 16V | M 6 | 8 | - |
| Tensioner pulley on oil pump housing | M 10 | 45 | - |
| Oil pump on crankcase | M 6 | 8 | - |
| M 10 | 45 | - | |
| Timing belt tensioner on crankcase | M 8 | 20 | - |
| Tensioner pulley on timing belt tensioner | M 10 | 45 | - |
| Belt cover | M 6 | 8 | - |
| Spark plugs | M 14 x 1.25 | 25-30 | - |
| Console for generator on crankcase | M 10 | 45 | - |
| Remote thermometer sensor | M 10 x 1 | 35 | - |
| Temperature sensor (NTC II) | M 12 x 1.5 | 15 | - |
| Oil pressure sender | M 18 x 1.5 | 35 | - |
| Diaphragm damper and pressure regulator on fuel manifold | M 16 x 1.5 | 30 | - |
| Cap nut on fuel manifold | M 12 x 1.5 | 22 | - |
| Locking nut on catalytic converter | M 14 x 1.5 | 30 | - |
| Housing insert in oil pump housing | M 6 | 8 | Separating surface sealed with Loctite 574 |
| Radiator housing/thermostat housing on crankcase | M 8 | 20 | - |
| Plug screw on oil-water cooler housing | M 18 x 1.5 | 35 | - |
| Coolant bleed screw | M 8 x 1 | 12+3 | - |
| Pressure relief valve | M 20 x 1.5 | 45 | - |
| Oil filter | - | 20 | - |
| Oil separator on crankcase | M 8 | 20 | - |
| All other screws and nuts M 6 | - | 8+2 | - |
| All other screws and nuts M 8 | - | 20+2 | - |
| All other screws and nuts M 10 | - | 40+5 | - |
| Manual transmission | Thread | Tightening torque Nm | Remark |
| Oil filler screw on transmission housing | M 24 | 24 | - |
| Oil drain plug on gearbox housing | M 24 | 24 | - |
| Cover for shift shaft on gearbox housing | M 6 | 8 | - |
| Bearing plate on gearbox housing | M 8 | 24 | - |
| Ball bearing on drive shaft | M 10 | 70 | renew |
| Ball bearing on drive shaft (turbo) | M 17 | 150 | - |
| Cover on bearing shield | M 8 | 24 | - |
| 5th gear on drive shaft | M 10 | 70 | renew |
| Shift detent on bearing plate and gearbox housing | M 18 | 30 | Threaded bushing |
| Shift travel limiter on bearing plate | M 14 | 30 | - |
| Deflection lever on bearing plate | M 10 | 35 | - |
| Reverse gear bolt on bearing plate | M 8 | 24 | - |
| Flange shaft on differential | M 8 | 24 | - |
| Side gearbox cover on gearbox housing | M 8 | 24 | - |
| Ring gear on differential housing | M 10 | 90 | - |
| Reversing light switch on gearbox housing | M 18 | 42 | - |
| Speedometer socket on gearbox housing | M 18 | 42 | - |
| Driveshaft on joint flange | M 8 | 42 | - |
| Transmission carrier to body | M 10 | 46 | - |
| Transmission bearing to transmission carrier | M 8 | 23 | - |
| Bracket to transmission bearing | M 8 | 23 | - |
| Mount on gearbox | M 8 | 23 | - |
| Gearbox mount on body | M 10 | 46 | - |
| Mount on suspension bracket | M 8 | 25 | - |
| Mounting bracket on gearbox | M 8 | 25 | - |
| Automatic gearbox | Thread | Tightening torque Nm | Remark |
| Torque converter bearing on rear Bell | M 8 x 25 | 21 | - |
| Central shaft with flanged shaft | M 10 x 46 | 80 | - |
| Central tube flange on coupling bell | M 10 x 35 | 42 | - |
| Central tube housing to gearbox housing | M 12 x 80 | 85 | - |
| M 10 x 50 | 42 | - | |
| Converter to drive plate | M 8 x 11 | 40 | - |
| Central shaft with damper | M 10 x 46 | 80 | - |
| Damper on flywheel | M 8 x 40 | 21 | - |
| Protective plate on clutch bell | M 10 x 25 | 42 | - |
| Coupling | Thread | Tightening torque Nm | Remark |
| Guide sleeve on coupling housing | M 7 | 15 | - |
| Clutch to ring gear mounting | M 8 | 25 | - |
| Flywheel to crankshaft | M 10 | 90 | - |
| Clutch housing to engine | M 12 | 75 | with Optimoly TA Grease |
| Protective and support plate on clutch and crankcase | M 10 | 42 | - |
| Release lever shaft with clutch housing | M 6 x 35 | 9.5 | - |
| M 6 | 7.5 | Nut | |
| Bracket for reference mark, speed and TDC sensor on crankcase | M 8 | 20 | - |
| Reference mark and speed sensor on bracket | M 6 | 8 | - |
| Slave cylinder on clutch housing | M 8 x 28 | 21 | - |
| Master cylinder on front wall | M 8 | 21 | Nut |
| Pipe on clutch hose or on master/slave cylinder | M 12 | 16 | - |
| Central shaft on transmission input shaft | M 10 x 46 | 80 | Clamping screw |
| Central tube flange to clutch housing | M 10 x 35 | 42 | - |
| Central tube housing to gearbox housing | M 12 x 75 | 85 | - |
| M 12 x 80 | 85 | - | |
| M 10 x 60 | 42 | - | |
| Starter on clutch housing | M 12 | 65 | - |
| Gear linkage | Thread | Tightening torque Nm | Remark |
| Linkage rod to gearbox housing | M 8 | 14 | Ball stud |
| Linkage rod to intermediate shift lever | M 8 | 21 | Nut |
| Shift rod mounting | M 8 | 21 | - |
| Shift lever plate on central tube | M 8 x 12 | 21 | - |
| Intermediate shift lever on shift shaft | M 8 | 22.5 | - |
| Front axle | Thread | Tightening torque Nm | Remark |
| Control arm to cross member | M 12 x 1.5 | 65 | Self-locking nut |
| Control arm to body | M 10 | 46 | - |
| Control arm bearing to aluminum control arm (caster eccentric) | M 12 x 1.5 | 85 | Self-locking nut |
| Control arm to steering knuckle | M 10 | 50 | Self-locking nut |
| Crossmember on body | M 12 | 85 | - |
| Heat shield for hydraulic mount on crossmember | M 6 | 10 | - |
| Tie rod on Steering knuckle | M 12 x 1.5 | 30+20 | Crown nut |
| M 12 x 1.5 | 50 | Self-locking nut | |
| Stabilizer link to body | M 8 | 23 | - |
