be0320b100002a

Test specifications for crankshaft

Type be · topic 03.20 · version 0101 · 2020-01-31

Applies to: Engine 372.9 Engine 374.9 Engine 376.9 Engine 377.9 Engine 386.9

Where it sits

Function group 1 Engine › 03 Crank assembly › 03.20 Crankshaft — Series 372 (models 9**) · Series 374 (models 9**) · Series 376 (models 9**) · Series 386 (models 9**)

EinPAS 15 Engine › 15.15 Combustion engine, complete/engine housing/crank assembly › 15.15.41 Crankshaft/flywheel/drive plate — Series 372 (models 9**) · Series 374 (models 9**) · Series 376 (models 9**) · Series 386 (models 9**)

Also applies to engines/gearboxes: 377 9**

BE03.20-B-1000-02A

Test specifications for crankshaft

Engine

372.9

Engine

374.9

Engine

376.9

Engine

377.9

Engine

386.9

Crankshaft test values

Number

Designation

Engine 374.9

Engine 372.9 , 376.9, 377.9, 386.9

BE03.20-B-1001-02A

Maximum roundness and tapper in the crankshaft neck

Reuse limit

mm

0,02

0,02

new or machined crankshaft

mm

0,005

0,005

BE03.20-B-1002-02A

Maximum crankshaft runout

mm

0,11

0,15

BE03.20-B-1003-02A

Coupling flange maximum eccentricity

mm

0,02

0,03

BE03.20-B-1004-02A

Maximum lateral runout of the coupling flange

mm

0,02

0,03

BE03.20-B-1005-02A

Gear maximum lateral runout

mm

0,06

0,06

BE03.20-B-1006-02A

Crackshaft axial clearance

mm

0,190...0,290

0,190...0,290

BE03.20-B-1007-02A

Radial play for the crankshaft necks

Primary necks

mm

0,050...0,108

0,050...0,108

Connecting rod necks

mm

0,041...0,100

0,041...0,100

BE03.20-B-1008-02A

Correlation radius of the crankshaft necks

Main and connecting rods necks

mm

3,65...4,00

3,65...4,00

Adjustment necks

mm

4,0...4,5

4,0...4,5

BE03.20-B-1009-02A

Primary necks

Diameter of the main neck

mm

87,99...88,01

87,99...88,01

Normal I

mm

87,89...87,91

87,89...87,91

Repair I

mm

87,74...87,76

87,74...87,76

Repair II

mm

87,49...87,51

87,49...87,51

Repair III

mm

87,24...87,26

87,24...87,26

Repair IV

mm

86,99...87,01

86,99...87,01

Width of the primary necks

Adjustment neck

mm

32,000...32,062

32,000...32,062

mm

32,300...32,362

32,300...32,362

mm

32,500...32,562

32,500...32,562

Other journals

mm

32,00...32,20

32,00...32,20

Connecting rods necks diameter

Normal

mm

59,995...60,015

59,995...60,015

Normal I

mm

59,895...59,915

59,895...59,915

Repair I

mm

59,745...59,765

59,745...59,765

Repair II

mm

59,495...59,515

59,495...59,515

Repair III

mm

59,245...59,265

59,245...59,265

Repair IV

mm

58,995...59,015

58,995...59,015

Connecting rods necks widths

Normal

mm

37,93...38,13

37,93...38,13

Maximum after grinding

mm

38,33

38,33

BE03.20-B-1010-02A

Main necks bushing

Adjustment bushing internal diameter

Normal

mm

88,060...88,098

88,060...88,098

Normal I

mm

87,960...87,998

87,960...87,998

Repair I

mm

87,810...87,848

87,810...87,848

Repair II

mm

87,560...87,598

87,560...87,598

Repair III

mm

87,310...87,348

87,310 - 87,348

Repair IV

mm

87,060 - 87,098

87,060...87,098

Internal diameter of the other main busings

Normal

mm

88,052...88,098

88,052...88,098

Normal I

mm

87,952...87,998

87,952...87,998

Repair I

mm

87,802...87,848

87,802...87,848

Repair II

mm

87,552...87,598

87,552...87,598

Repair III

mm

87,302...87,348

87,302...87,348

Repair IV

mm

87,052...87,098

87,052...87,098

Adjustment bushings thickness

Normal

mm

2,465...2,473

2,465...2,473

Normal I

mm

2,515...2,523

2,515...2,523

Repair I

mm

2,590...2,598

2,590...2,598

Repair II

mm

2,715...2,723

2,715...2,723

Repair III

mm

2,840...2,848

2,840...2,848

Repair IV

mm

2,965...2,973

2,965...2,973

Thickness of the other main bushings

Normal

mm

2,465...2,477

2,465...2,477

Normal I

mm

2,515...2,527

2,515...2,527

Repair I

mm

2,590...2,602

2,590...2,602

Repair II

mm

2,715...2,727

2,715...2,727

Repair III

mm

2,840...2,852

2,840...2,852

Repair IV

mm

2,965...2,977

2,965...2,977

Main busings width

adjustment bushings

mm

31,74...31,81

31,74...31,81

mm

32,04...32,11

32,04...32,11

mm

32,24...32,31

32,24...32,31

Other bushings

mm

23,800...24,100

23,800...24,100

BE03.20-B-1011-02A

Connecting rods necks bushings

Busings internal diameter of the connecting rod necks

Normal

mm

60.056...60,095

60.056...60,095

Normal I

mm

59,956...59,995

59,956...59,995

Repair I

mm

59,806...59,845

59,806...59,845

Repair II

mm

59,556...59,595

59,556...59,595

Repair III

mm

59,306...59,345

59,306...59,345

Repair IV

mm

59,056...59,095

59,056...59,095

Connecting rods necks bushings thickness

Normal

mm

2,462...2,472

2,462...2,472

Normal I

mm

2,512...2,522

2,512...2,522

Repair I

mm

2,587...2,597

2,587...2,597

Repair II

mm

2,712...2,722

2,712...2,722

Repair III

mm

2,837...2,847

2,837...2,847

Repair IV

mm

2,962...2,972

2,962...2,972

Bushings width

mm

29,10...29,40

29,10...29,40

BE03.20-B-1012-02A

Maximum length to reuse the crankshaft counterweights bolts

mm

45,3

45,3

BE03.20-B-1013-02A

Maximum dynamic unbalancing of the camshaft (at 600/Min)

Ncm

0,3

0,3

BE03.20-B-1014-02A

Roughness of the camshaft polished necks

Rt

0,0015

0,0015

BE03.20-B-1015-02A

Camshaft necks surface hardness

Rc

53...59

53...59