ar0130b580001b

Tightening procedure for cylinder head bolts

Tipo ar · tema 01.30 · versione 0201 · 2019-10-16

Valido per: Engine 904, 906, 924, 926 in model 368, 382, 384, 634, 685.282/284/289/290 Engine 904, 906, 924, 926 in model 693

Non disponibile in “it”; mostrato in Inglese.

Collocazione

Gruppo funzionale 1 Motore › 01 Motore completo, sfiato del motore, testata, basamento › 01.30 Testata — Serie 368 · Serie 382 · Serie 384 · Serie 634 · Serie 685 (modelli 282, 284, 289, 290) · Serie 693 · Serie 904 · Serie 906

EinPAS 15 Motore › 15.16 Testata › 15.16.31 Testata/guarnizione della testata — Serie 368 · Serie 382 · Serie 384 · Serie 634 · Serie 685 (modelli 282, 284, 289, 290) · Serie 693 · Serie 904 · Serie 906

Valido anche per motori/cambi: 924 ***, 926 ***

AR01.30-B-5800-01B

Tightening procedure for cylinder head bolts

Engine 904.9, 906.9, 924.9, 926.9

Engine

904, 906, 924, 926 in model 368, 382, 384, 634, 685.282/284/289/290

Engine

904, 906, 924, 926 in model 693

Cylinder head

Number

Designation

Engine 904.9, 906.9

Engine 924.9, 926.9

BA01.30-B-1002-01C

Crankcase bolt

1st stage

Nm

20

20

2nd stage

Nm

70

70

3rd stage

Nm

170

170

4th stage

Nm

280

280

5th stage

Graus

90

90

6th stage

Graus

90

90

Tightening procedure for cylinder head bolts

422 589 01 09 00

Wrench socket

Tightening procedure for cylinder head bolts

Engine 906.9, 926.9

W01.30-0005-10

Tightening procedure for cylinder head bolts

1

Tighten the bolts of the head using the socket. 


Note the tightening sequence indicated in the figure.


If the bolt tightening torque is exceeded, remove it, check the maximum allowable length (replace if necessary), and tighten it from the 1st step.


Replacing the bolts whose length exceeds the maximum allowable value is mandatory.


Do not retighten the bolts on the cylinder head.


Engine 906.9, 926.9

W01.30-0020-04