Vauxhall Workshop Service and Repair Manuals

OHC Petrol Engines

 

Machining of Valve Seat

 

 

 

 

A = Inlet valve

B = Exhaust valve

 

Camshaft                     12 ST     13 N/13 NB    13 S                 14 NV, C 14 NZ    16 SH      C 16 LZ/16 SV

                                                                                                                                                   C 16 NZ, E 16 NZ

Letter code                   C            A                     B                     F                             A              D

 

Colour      Norm. size    blue       without            white               grey                        none         brown

Code        0.1mm          -             -                      -                       -                              violet        -

                 undersize

 

Radial run-out               0.03       0.03                 0.03                 0.03                        0.03          0.03

 

End play                        0.09 to 0.21 mm on all engines            0.09 to 0.21

 

Lift of

cam          Inlet              5.1 mm                                                                                                 5.61

                                                    5.54 mm          6.0 mm            6.12 mm                 6.12 mm

Inlet and

exhaust

valve        Exhaust         5.5 mm                                                                                                 6.12

 

OHC Petrol Engines

 

Machining of Valve Seat

 

 

 

 

A = Inlet valve

B = Exhaust valve

 

Camshaft                                   18 E            18 SE/E 18 NV        C 20 NE/20 NE       20 SEH

 

Letter code                                  B                E                               J                                K

 

Colour             Normal size         -                  none                         -                                -

Code               0.1mm                 violet          violet                        violet                        violet

                        undersize

 

Radial run-out                              0.03            0.03                          0.03                          0.03

 

End play                                      0.09 to 0.21 mm on all engines

 

Lift of cam                Inlet                               6.01 mm

                                                    6.95 mm                                      6.67 mm                   6.67 mm

Inlet/exhaust valve   Exhaust                         6.39 mm

 

 

OHC Petrol Engines   Machining of Valve Seat   A = Inlet valve B = Exhaust valve

 

 

Camshaft                                                   C 20 XE, 20 XE, 20 XEJ

                                                                  Inlet and exhaust camshaft

Letter code                                                                     -

Colour code.                                                                  -

Radial run-out                                                          0.04 mm

 

End play                                                            0.04 - 0.144 mm

 

Lift of cam                                                                9.5 mm

 

Bearing journal                                                         27.960

(Æ in mm)                                                                 27.939

 

Diameter in                                                               28.021

housing                                                                      28.000

(in mm)

 

OHC Petrol Engines

 

Camshaft

 

Grinding Dimensions for Camshaft Bearing

 

 

Bearing	12 ST, 13 N, 13 S, 13 NB, C 13 N, 14 NV, C 14 NZ, 16 SV, C 16 LZ, E 16 NZ, C 16 NZ	16 SH, 18 E, 18 SE, E 18 NV, C 18 NT, C 18 NE, 20 NE, 20 SEH, C 20 NE
1   2   3   4   5	Bearing Journal        Housing Diam. in mm            Diameter   39.450                      39.525 39.435                      39.500   39.700                      39.775 39.685                      39.750   39.950                      40.025 39.935                      40.000   40.200                      40.275 40.125                      40.250   40.450                      40.525 40.435                      40.550	Bearing Journal Diam. in mm   Housing Diameter Normal           -0.1                    Normal     -0.1 mm   42.470            42.370                42.525      42.425 42.455            42.355                42.500      42.400   42.720            42.620                42.775      42.675 42.705            42.605                42.750      42.650   42.970            42.870                43.025      42.925 42.955            42.855                43.000      42.900   43.220            43.120                43.275      43.175 43.205            43.105                43.250      43.150   43.470            43.370                43.525      43.425 43.455            43.355                43.500      43.400