ar0130p580001mrt

Tightening procedure for cylinder head bolts

Type ar · emne 01.30 · version 0400 · 2020-08-25

Gælder for: Engine 254.9, 256.9

Ikke tilgængelig på “da”; vises på Engelsk.

Placering

Funktionsgruppe 1 Motor › 01 Motor komplet, motorudluftning, topstykke, motorblok › 01.30 Topstykke

EinPAS 15 Motor › 15.16 Topstykke › 15.16.31 Topstykke/toppakning

Gælder også for motorer/gearkasser: 254 9**, 256 9**

AR01.30-P-5800-01MRT

Tightening procedure for cylinder head bolts

Topical note

Notes on threaded connections fastened using a tightening angle-based tightening process

AH00.00-P-0020-01A

Engine

254.9, 256.9

Modification notes

27.02.2020

Screw, cylinder head to crankcase/timing case

BA01.30-P-1004-01MRT

15.05.2020

Operation steps added.

Operation steps 7–13

16.07.2020

Screw, cylinder head to crankcase/timing case

BA01.30-P-1003-01EA

Cylinder head

Number

Designation

Engine 254

BA01.30-P-1003-01EA

Screw, cylinder head to crankcase/timing case

M8

Nm

20

M11

Stage 1

Nm

10

Stage 2

Nm

50

Stage 3

°

90

Stage 4

°

90

Stage 5

°

90

Stage 6

°

90

Cylinder head

Number

Designation

Engine 256.9

BA01.30-P-1004-01MRT

Screw, cylinder head to crankcase/timing case

M8

Nm

20

M11

Stage 1

Nm

10

Stage 2

Nm

40

Stage 3

°

90

Stage 4

°

90

Stage 5

°

90

Tightening procedure for cylinder head bolts

P01.30-2514-09

Engine 256.9

1

Tighten screws (1–14) in ascending numerical order to stage 1 Engine 256.9 .

2

Tighten screws (1–14) in ascending numerical order to stage 2 Engine 256.9 .

3

Tighten screws (1–14) in ascending numerical order to stage 3 Engine 256.9 .

4

Tighten screws (1–14) in ascending numerical order to stage 4 Engine 256.9 .

5

Tighten screws (1–14) in ascending numerical order to stage 5 Engine 256.9 .

6

Tighten screws (15–19) in ascending numerical order Engine 256.9  .

Screws (1–14) = M11
Screws (15–19) = M8

Tightening procedure for cylinder head bolts

7

Tighten screws (1–10) in ascending numerical order to stage 1 Engine 254.9 .



8

Tighten screws (1–10) in ascending numerical order to stage 2 Engine 254.9 .



9

Tighten screws (1–10) in ascending numerical order to stage 3 Engine 254.9 .



10

Tighten screws (1–10) in ascending numerical order to stage 4 Engine 254.9 .



11

Tighten screws (1–10) in ascending numerical order to stage 5 Engine 254.9 .



12

Tighten screws (1–10) in ascending numerical order to stage 6 Engine 254.9 .



13

Tighten screws (11–15) in ascending numerical order Engine 254.9  .


Engine 254.9

P01.30-A036-06

Screws (1–10) = M11
Screws (11–15) = M8

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