B1DB2JK1 - 206 TU ENGINE

IDENTIFICATION - DATA - TIGHTENING TORQUES CYLINDER HEAD

1 - IDENTIFICATION

1 - 1 - CYLINDER HEAD

1st generation .

distance (mm) | nominal | repair
--- | --- | ---
A ± 0.08 | 111.2 | 111

Ground cylinder heads are marked with a letter (R) engraved at (B) .

The cylinder heads specific to the TU1M+ engines are marked at (C) with a mark (M+) when they are cast (on each side) .

The cylinder heads machined to the new dimensions are marked by countersinking (E) of þ 10 mm and depth 1.5 mm around the sling bracket mounting hole .

2nd generation .

The cylinder heads of the 2nd generation engines are specific; they can be identified by the boss (1) for the mounting of the compact coil unit .

1 - 2 - CYLINDER HEAD GASKET

(1B) Nominal dimension .

(1C) Repair size .

engine code | HFY HFZ | KFX K6C | NFZ
--- | --- | --- | ---
engine type | TU1JP | TU3JP | TU1JP
special features | without | without | without
engine identification (group 1A) | without | without | without
nominal dimension (group 1B) | E | E | E - H
repair size (group 1C) | E - M | E - M | E - H - M

1 - 3 - CYLINDER HEAD BOLT

Length under head of bolt (X) .

1 - 4 - VALVE SPRING GUIDE

| aluminium cylinder block | cast-iron cylinder block
--- | --- | ---
D (mm) | 21.3 | 19.65

| on engines with aluminium cylinder blocks, the diameter (D) has been standardised to 19.65 mm from the following engine numbers
--- | ---
TU9 | 2197277
TU1 | 2581370
TU3 | 2252655

2 - DATA

engine code | HFY HFZ | KFX K6C | NFZ
--- | --- | --- | ---
engine type | TU1JP | TU3JP | TU5JP
special features | without | without | without
type of cylinder head gasket | fibre | fibre | fibre
theoretical thickness (mm) | UNK. | UNK. | UNK.
repair dimensions (mm) | UNK. | UNK. | UNK.
bolt length (mm) (mm) (X) nominal | 175.5 ± 0.5 | 175.5 ± 0.5 | 175.5 ± 0.5
bolt length (mm) (mm) (X) max. | 176.5 | 176.5 | 176.5
maximum cylinder head bow (mm) | 0.05 | 0.05 | 0.05

3 - TIGHTENING TORQUE(S)

engine code | HFY HFZ | KFX K6C | NFZ
--- | --- | --- | ---
engine type | TU1JP | TU3JP | TU5JP
special features | without | without | without
pre-tightening (da.Nm) (a) | N/A | N/A | N/A
repair dimensions (a) | N/A | N/A | N/A
tightening (da.Nm) (a) | 2 | 2 | 2
1st angular tightening (a) | 240° | 240° | 120°
2nd angular tightening (a) | N/A | N/A | 120°
3rd angular tightening (a) | N/A | N/A | N/A