be0310b100002a
Test specifications for pistons
Type be · topic 03.10 · version 0101 · 2020-01-29
Applies to: Engine 372.9 Engine 374.9 Engine 376.9 (except 376.922/926) Engine 377.9 Engine 386.9
Where it sits
Function group 1 Engine › 03 Crank assembly › 03.10 Connecting rods, pistons — Series 372 (models 9**) · Series 374 (models 9**) · Series 376 (models 905, 906, 907, 908, 909, 919, 923, 924, 927, 930, 941, 945, 946, 947, 950, 951, 952, 953, 954, 955, 956, 958, 961, 962, 963, 964, 967, 968, 969, 970, 972, 975, 976, 977, 984, 986, 993, 994, 995, 997) · Series 386 (models 9**)
EinPAS 15 Engine › 15.15 Combustion engine, complete/engine housing/crank assembly › 15.15.40 Connecting rod/piston — Series 372 (models 9**) · Series 374 (models 9**) · Series 376 (models 905, 906, 907, 908, 909, 919, 923, 924, 927, 930, 941, 945, 946, 947, 950, 951, 952, 953, 954, 955, 956, 958, 961, 962, 963, 964, 967, 968, 969, 970, 972, 975, 976, 977, 984, 986, 993, 994, 995, 997) · Series 386 (models 9**)
Also applies to engines/gearboxes: 377 9**
BE03.10-B-1000-02A
| Test specifications for pistons
|
|
|
Engine
| 372.9
|
Engine
| 374.9
|
Engine
| 376.9 (except 376.922/926)
|
Engine
| 377.9
|
Engine
| 386.9
|
Test values for the piston
|
Number
| Designation
|
|
|
| Engine 372.9, 374.9, 376.9 (except 376.922/926), 377.9, 386.9
|
BE03.10-B-1001-02A
| Diameter (D) of the piston pin housing
| New
|
| mm
| 36,002 ...36,007
|
|
|
| Limit for reuse
|
| mm
| 36,030
|
BE03.10-B-1002-02A
| Piston pin diameter
| New
|
| mm
| 35,995...36,000
|
|
|
| Limit for reuse
|
| mm
| 35,985
|
BE03.10-B-1003-02A
| Play between the piston and the pin
| New
|
| mm
| 0,002...0,012
|
|
|
| Limit for reuse
|
| mm
| 0,045
|
BE03.10-B-1004-02A
| Distance of the piston (PMS) below the block surface
| Conical or cylindrical type chamber
|
| mm
| 0,04...0,40
|
|
|
| Omega type chamber
|
| mm
| 0,40...0,70
|
BE03.10-B-1005-02A
| Maximum roundness and tapper of the cylinder
|
|
| mm
| 0,01
|
BE03.10-B-1006-02A
| Compression height (C) of the piston
| Normal
| Version I
| mm
| 62,80...62,86
|
|
|
|
| Version II
| mm
| 63,00...63,04
|
|
|
| Repair I
| Version I
| mm
| 62,50...62,56
|
|
|
|
| Version II
| mm
| 62,70...62,74
|
|
|
| Repair II
| Version I
| mm
| 62,20...62,26
|
|
|
|
| Version II
| mm
| 62,40...62,44
|
|
|
| Repair III
| Version I
| mm
| 61,90...61,96
|
|
|
|
| Version II
| mm
| 62,10...62,14
|