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 |