Tightening Torques

1 -General InstructionsTypeScrewDimensionUnit00 00 Extract from company standard BMW N 600 maximum Tightening Torques are:Only applicable to shaft screws with metric standard and fine threads acc. toDIN 13, sheet 13 and nuts with height of 0,8 x d acc. to DIN 934 and only for a total = (screws phosphatized, screws untreated or galvanized. Lubricationcondition: unlubricated and also oiled).For cadmium-plated screws or nuts ( total = to ) the Tightening torquewith screw material at the same level of utilization ca. must be 30% less thanshown in the values specified in this table apply to all screw connections conforming to theaforementioned applicable when using a different surface or lubricant condition on the thread,or if the height of the nut applicable to necked-down bolts, self-tapping screw connections or toconnections between parts made of different !

2 Maintaining specified Tightening Torques is vital for performing repair work to aprofessional standard. This presupposes that the torque wrenches required for thisare subjected to a regular inspection. Approved torque testing equipment is listedin the catalogue of workshop equipment planning -General InstructionsTypeScrewDimensionUnit00 00 M4 and M5 - maximum Tightening Torques in accordance withBMW N 600 range for Tightening Torques ,refer to extract from company standard threadM4 (ft. lbs.)M4 (ft. lbs.)M4 (ft. lbs.)M5 threadM5 (ft. lbs.)M5 (ft.)

3 Lbs.)M5 (ft. lbs.) -General InstructionsTypeScrewMeasureUnit00 00 M6 and M7 - maximum Tightening Torques accord. to BMW N 600 range for Tightening Torques ,refer to extract from company standard threadM6 threadM7 -General InstructionsTypeScrewDimensionUnit00 00 M8 and M8x1 - maximum Tightening Torques in acc. with BMW N 600 range for Tightening Torques ,refer to extract from company standard threadM8 (ft. lbs.)M8 (ft. lbs.)M8 (ft. lbs.)M8x1 threadM8x1 (ft. lbs.)M8x1 (ft. lbs.)M8x1 (ft. lbs.) -General InstructionsTypeScrewDimensionUnit00 00 M10 and M10x1 - maximum Tightening Torques acc.

4 To BMW N 600 range for Tightening Torques ,refer to extract from company standard threadM10 (ft. lbs.)M10 (ft. lbs.)M10 (ft. lbs.)M10x1 threadM10x1 (ft. lbs.)M10x1 (ft. lbs.)M10x1 (ft. lbs.) -General InstructionsTypeScrewDimensionUnit00 00 M12 and - maximum Tightening Torques acc. to BMW N 600 range for Tightening Torques ,refer to extract from company standard threadM12 (ft. lbs.)M12 (ft. lbs.)M12 (ft. lbs.) (ft. lbs.) (ft. lbs.) (ft. lbs.) -General InstructionsTypeScrewDimensionUnit00 00 M14 and - maximum Tightening Torques acc.

5 To BMW N 600 range for Tightening Torques ,refer to extract from company standard threadM14 (ft. lbs.)M14 (ft. lbs.)M14 (ft. lbs.) (ft. lbs.) (ft. lbs.) (ft. lbs.) -General InstructionsTypeScrewDimensionUnit00 00 M16 and - maximum Tightening Torques acc. to BMW N 600 range for Tightening Torques ,refer to extract from company standard threadM16 (ft. lbs.)M16 (ft. lbs.)M16 (ft. lbs.) (ft. lbs.) (ft. lbs.) (ft. lbs.) -General InstructionsTypeScrewDimensionUnit00 00 M18 and - maximum Tightening Torques acc. to BMW N 600 range for Tightening Torques ,refer to extract from company standard threadM18 (ft.)

6 Lbs.)M18 (ft. lbs.)M18 (ft. lbs.) (ft. lbs.) (ft. lbs.) (ft. lbs.) -EngineTypeScrewMeasureUnit11 11 Crankcase1 AZMain bearing screwsReplace, wash and oil main bearing screwsM10/M20/M30M1060 NmM21M1065 NmS38/S14/M40/M42/M43/M44/M50/M41/M51/S5 0/S50 USM10 Torque20 NmTorque angle50 2 AZMain bearing screwsReplace main bearing screwsDo not wash off coating on main bearing screwM70/S70/M73/M52 With castaluminium engine blockTorque20 NmTorque angleM1070 M60/1/M60/2/M62 Torque20 NmTorque angle on engines with M10 main bearing screwsM1070 torque angle on engines with M11 main bearing screwsM11100 Main bearing screwsReplace.

7 Wash and oil main bearing screwsS52/M52 With cast iron engineblockTorque20 NmTorque angleM1050 -EngineTypeScrewMeasureUnit11 11 Crankcase1 AZMain bearing screwsReplace, wash and oil main bearing screwsM10/M20/M30M1060 NmM21M1065 NmS38/S14/M40/M42/M43/M44/M50/M41/M51/S5 0/S50 USM10 Torque20 NmTorque angle50 2 AZMain bearing screwsReplace main bearing screwsDo not wash off coating on main bearing screwM70/S70/M73/M52 With castaluminium engine blockTorque20 NmTorque angleM1070 M60/1/M60/2/M62 Torque20 NmTorque angle on engines with M10 main bearing screwsM1070 torque angle on engines with M11 main bearing screwsM11100 Main bearing screwsReplace.

8 Wash and oil main bearing screwsS52/M52 With cast iron engineblockTorque20 NmTorque angleM1050 -EngineTypeScrewMeasureUnit11 11 Crankcase3 AZMain bearing cap inclined boltsScrews (replace hex and collar screws) and spacer pinM60/1/M60/2/M62/M70/S70/M73M8 Torque20 NmTorque angle45 Threaded support sleevesM70/M60/1/M60/2/M62/S70/M7310Nm4 AZStruts/bracing shellAllM1043 NmAllM822Nm5 AZDrain plug for coolant on engine blockAllM14 x oil duct screw plugsAllM16 x spray nozzle on engine -EngineTypeScrewMeasureUnit11 12 Cylinder Head and Cover2 AZCylinder head boltsReplace, wash and oil cylinder head repair work, only use screws with Torx headM20M10torque30 Nmtorque angle90 torque angleNo settling time.

9 No warm-running -EngineTypeScrewMeasureUnit11 12 Cylinder Head and Cover3 AZCylinder head boltsReplace, wash and oil cylinder head angle (screws no. 1 - 10)90 Torsion angle (screws no. 11 - 14)73 warm-running time15mintorque angle90 4 AZCylinder head boltsReplace, wash and oil cylinder head time20mintorque80 Nmwarm-running time25mintorque angle35 -EngineTypeScrewMeasureUnit11 12 Cylinder head with cover5 AZCylinder head boltsReplace, wash and oil cylinder head boltsM51/M41M11 Torque80 NmLoosen all bolts 1/2 turnTorque50 NmTorque angle90 torque angle90 warm-running time25minTorque angle90 6 AZCylinder head boltsReplace.

10 Wash and oil cylinder head boltsM40/M42/M43/M44/M50/S50 US/S52/M52 With cast iron engineblockM10 Torque30 NmTorque angle90 torque angle90 Cylinder head boltsFit new cylinder head boltsDo not wash away coating on cylinder head screwsM52 With cast aluminium engineblockM10 Torque40 NmTorque angle90 torque angle90 -EngineTypeScrewMeasureUnit11 12 Cylinder head with cover6 AZCylinder head boltsReplace, wash and oil cylinder head boltsS50M11 Torque30 NmTorque angle90 torque angle90 -EngineTypeScrewMeasureUnit11 12 Cylinder head with cover7 AZCylinder head boltsFit new cylinder head boltsDo not wash away coating on cylinder head screwsFor repair work.