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ENGINE
SPECIAL FEATURES - CYLINDER HEAD TIGHTENING
Engines all types
B1DP05BC
Cleaning to be carried out just prior to refitting the cylinder head.
WARNING: Clean the contact faces with the approved CITROËN cleaning product.
Do not use abrasives or cutting tools on the contact faces.
The contact faces must not bear any traces of impact or scratching.
Insert a tap in the threads of the holes in the cylinder block receiving the cylinder head bolts.
Brush the threads of the cylinder head bolts..
Oil the threads and under the heads of the bolts, using MOLYKOTE G RAPID PLUS.
Engines
Tightening Cylinder head bolts
(m.daN) (Max. reusable length in mm)
NFU
Tightening 2 ± 0,2
Angular tightening 260° ± 5°
122 ± 0,3
Pre-tightening 1,5 ± 0,2
KFU Tightening 2,5 ± 0,2 119
Angular tightening 200° ± 5°
6FZ - RFN
Pre-tightening 1,5 ± 0,1
147
Tightening 5 ± 0,1
RFJ Angular slackening 360° ± 2° 127,5 ± 0,5
Tightening 2 ± 0,75
RFK Angular tightening 285° ± 5° 144,5 ± 0,5
NOTE: Tightening of the cylinder head after a repair is prohibited.
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