Teab keegi plokikaane pingutus tugevust ja valemit. 2,5td 87kw

1st Phase: Tightening Head Bolts (Fig. 34).
Central bolts (A-L): Tighten all bolts, starting with
bolt A then B-C-D-E-F-G-H-I-L, to 30 N·m. Repeat
the operation with the same torque. Following the
same sequence rotate each bolt through an angle of
70° using angle torque tool. Then rotate the bolts an
additional 70° following tightening sequence.

(10) Then, tighten the 14mm bolts with special
tool VM-1018 in the following manner:
(11)Side bolts (M1-M2): Tighten M1 bolts to 30
N·m, then rotate them 85° (65). Tighten M2 bolts to
30 N·m, then rotate them 85° (65).
(12) 2nd Phase: After 20 minutes of engine operation
at operating temperature, allow engine to cool
down completely. Then retorque the head bolts as follows:
(13) Central bolts A-L: Starting from bolt A,
slacken and retorque it immediately to 30 N·m + 65°.
Rotate the bolt an additional 65°. Then proceed in
the same way, bolt by bolt, following alphabetical
order, as indicated.
(14) Side bolts M1-M2: Without slackening ,
torque bolts M1 then bolts M2 to 90 N·m (66 ft. lbs.).
(15) Tighten intake nuts to 30 N·m (22 ft. lbs.) and
exhaust manifolds nuts to 30 N·m (22 ft. lbs.) specified
torque after completing Phase 2.

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