B1CB1UK1 - 206 TU ENGINE

DATA - IDENTIFICATION CAST CYLINDER BLOCK ( NOT TU5J4 )

(A) : Identification (R1) engraved on the cylinder block (Repair size) .

| ø A + 0,018 + 0 (mm) | B ± 0,1 (mm)
--- | --- | ---
engine type | nominal | repair 1 | nominal
TU3 | 75 | 75,4 | 265,23
TU5 | 78,5 | 78,9

1 - GRINDING THE BARRELS

IMPERATIVE : after reboring the barrels lap them, referring to the instructions .

(C) : Location of the lift rate measurement .

(D) : 10 mm .

(E) : 65 mm .

(F) : 125 mm .

(à) : 50° ± 5' Lapping detail, crossed lines .

2 - LIFT RATE

To take the following measurements, observe the correct locations (C) .

R maximum = 15 .

Measurement of lift rate :

- in accordance with standard E4072 110N - ISO 4288 without mechanical or electrical filtering
- sensing distance = 16 mm
- three measurements per barrel on the protrusion side (oil filter side) which is 12 measurements per cylinder block

Lift rate :

- two protrusions allowed, except where they are in the same barrel
- in this case, you can make 7 additional measurements in the faulty barrel with acceptance if there is no protrusion

3 - SHAPE AND POSITION TOLERANCE

(G) : Straightness .

(H) : Conformity of cylindrical shape .

(I) : Flatness .

4 - MEASUREMENT OF STIFFNESS

(J) : Ball location .

(K) : 50 mm .

(à) : 60° .

Measure the diameters V, X, Y, Z at each point D, E, F .

TU3 : 75 ≤ V, X, Y, Z ≤ 75,018 .

TU5 : 78,5 ≤ V, X, Y, Z ≤ 78,518 .

Maximum variation among 12 measurements = 0,018 mm .