Get ENGINE -> Cylinder head: marking and tightening Guide for Citroen Xantia 4 Door Second Generation (1993-2002)

CYLINDER HEAD

XANTIA - XM

Engines : BFZ – BFX - LFX - LFY - RGX - RFV

IDENTIFICATION OF THE CYLINDER HEAD GASKET

Engine types

BFZ

BFX

LFX

LFY

RGX

RFV

Identification marks

(Notch on cylinder head gasket)

*

1

A

B

C

D

E

A

B

C

D

E

0

1

0

CURTY

Suppliers

0

1

0

1

0

1

0

MEILLOR

0 = Without notch

*

1 = One notch

B1BP004C

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XANTIA - XM

CYLINDER HEAD (continued)

Engines : BFZ – BFX - LFX - LFY - RGX - RFV

Cylinder head tightening (m.daN)

BFZ – BFX - LFX – LFY

Cylinder head bolts

- Pre-tightening

- Loosening

6

YES

2

- Tightening

Note : Oil the threads

- Angular tightening

300°

and under the heads of

the cylinder head bolts.

(Use engine oil or

Molykote G Rapid Plus).

RGX – RFV

- Pre-tightening

- Loosening

3.5

NO

7

B1DP13PC

- Tightening

X = MAXIMUM reusable length

- Angular tightening

160°

BFZ - BFX

LFX

LFY

RGX

RFV

171.5 mm

160.5 mm

122 mm

112 mm

B1DP05BC

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CYLINDER HEAD

SYNERGIE

Engine : RFN

Identification of the cylinder head gasket

Nominal dimension

4 - 5

Repair dimension

2 - 4 - 5

Marking zone

"d"

Marking zone

"e"

R1

R2

1.4

Gasket thickness

(mm)

0.8

1.1

Supplier

MEILLOR

Multilayer metallic gasket

B1DP183D

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CYLINDER HEAD (continued)

SYNERGIE

Engine : RFN

Cylinder head tightening (m.daN)

Cylinder head bolts

RFN

Pre-tightening

1.5 ± 0.1

5 ± 0.1

Tightening

Loosening

Tightening

360° ± 2°

2 ± 0.75

Angular tightening 285° ± 5°

B1DP16FC

A = Washer thickness : 4 ± 0.2 mm.

Note : Oil the threads and

under the heads of the cylinder

head bolts. (Use engine oil or

Molykote G Rapid Plus).

X = Length under heads of new bolts = 144.5 ± 0.5 mm.

X = MAXIMUM reusable length

RFN

B1DP05BC

X = 147 mm

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CYLINDER HEAD

XANTIA - XM

Engine : XFZ

IDENTIFICATION OF THE CYLINDER HEAD GASKET

Thickness

(mm)

Ident. marks

(1) and (2)

Supplier

ERLING

Front

1.45 ± 0.04

Centre tab

Rear

B1DP09TC

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XANTIA - XM

CYLINDER HEAD (continued)

Engine : XFZ

Cylinder head tightening (m.daN)

Cylinder head bolt

- Pre-tighten

- Loosen

2

Front

YES

1.5

- Tightening

- Angular tightening 225°

Note : Oil the threads and under the

heads of the cylinder head bolts.

(Use engine oil or Molykote G Rapid

Plus).

Rear

X = MAXIMUM reusable length

XFZ

149.5 mm

B1DP09UC B1DP09VC

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XANTIA

CYLINDER HEAD

Engine : DHX

IDENTIFICATION OF THE CYLINDER HEAD GASKET

DHX

Thickness

(mm)

± 0.06

Piston

stand-proud (mm)

Marking

(B)

Engine type

0.56 to 0.67

0.68 to 0.71

0.72 to 0.75

0.76 to 0.79

0.80 to 0.83

1.36

1.40

1.44

1.48

1.52

DHX

(A) = Engine identification.

(B) = Thickness identification.

Engine

DHX

Ident. (A)

Ident. (B)

1 to 5 notches

3 notches

B1BP10TC

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XM

CYLINDER HEAD (continued)

Engine : P8C

IDENTIFICATION OF THE CYLINDER HEAD GASKET

Piston stand-proud

(mm)

Thickness

(mm)

Position of

hole(s)

Engine type

Ident.

0.65 to 0.76

0.77 to 0.81

0.82 to 0.86

0.87 to 0.91

0.92 to 0.96

Reconditioning

1.52

1.57

1.62

1.67

1.72

B - A1

B - A2

B - A3

(A) and (B)

P8C

B - A4

B - A5

B - A1 - A5

B1BP1DTC

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XANTIA - SYNERGIE

CYLINDER HEAD

Engine : RHZ - RHY

IDENTIFICATION OF THE CYLINDER HEAD GASKET

Engine

type

Piston stand-

proud (mm)

Thickness

(mm)

No. of notches

at A

0.47 to 0.605

0.605 to 0.655

0.655 to 0.705

0.705 to 0.755

0.755 to 0.83

1.30 ± 0.06

1.35 ± 0.06

1.40 ± 0.06

1.45 ± 0.06

1.50 ± 0.06

1

2

3

4

5

RHZ

RHY

B1DP15AD

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XANTIA - XM - SYNERGIE

CYLINDER HEAD

Engines : DHX - RHZ - RHY - P8C

Cylinder head tightening (m.daN)

Cylinder head bolts

DHX - P8C

RHZ - RHY

P8C

- Pre-tightening

- Tightening

2

6

- Angular tightening

180°

DHX - RHZ - RHY

- Pre-tightening

- Tightening

2

6

- Angular tightening

220°

Note : Oil the threads and under the heads of the cylinder

head bolts. (Use engine oil or Molykote G Rapid Plus).

X = MAXIMUM reusable length

DHX

P8C

RHZ - RHY

133.3 mm

150.5 mm

151.5 mm

B1DP05BC

B1DP13PC B1DP15EC

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XM

CYLINDER HEAD

Engine : THY

Cylinder head tightening ( m.daN)

Cylinder head bolts

Identification of the cylinder head gasket

Thickness

Engine type

Ident.

Pre-tightening the bolts :

(mm)

- 1 à 14

(Bolt Ø 12)

(Bolt Ø 10)

5

THY

1.6

None

- 15 à 22

3.5

Angular tightening :

- 1 à 22

(Bolt Ø 12 and 10) 120° ± 5°

Note : Oil the threads and under

the heads of the cylinder head

bolts. (Use engine oil or

Molykote G Rapid Plus).

B1DP15EC

X = MAXIMUM reusable length

Bolt Ø 12

153.5 mm

Bolt Ø 10

162.5 mm

B1DP03XC

61

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ENGINE -> Cylinder head: marking and tightening for Your Citroen Xantia 4 Door Second Generation (1993-2002)

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