Engine overhaul: 1.9 JTD (AR32302) Checking the camshaft
Use a torque meter to check that the specifications of the valve springs are within the specified limits; if not, replace the strained parts.
Spring length (mm)
Check load N (kg)
With valve closed
36
With valve open
26.5
CHECKING THE CAMSHAFT
Check that the diameter of the camshaft pins is within the specified limits; if not, replace the worn camshaft.
Diameter of camshaft pins
26.000 ÷ 26.015 mm
Check that the nominal lift of the camshaft cams is within the specified limits; if not, replace the worn camshaft.
Assemble the camshaft caps on the cylinder head and tighten the screws to the specified torque.
Check that the diameter of the camshaft supports is within the specified limits; if not, replace the cylinder head.
Diameter of camshaft supports
26.045 ÷ 26.070 mm
13 ÷ 16 Nm
CHECKING AND INSPECTING THE CRANKCASE
CHECKING THE CYLINDER HEAD RESTING SURFACE
Check the cylinder head resting surface for cracks or surface scores. Check that the flatness of the cylinder head resting surface is within the specified limits; if not, grind the resting surface of the cylinder head.
Flatness of cylinder head resting surface
< 0.1 mm
CHECKING THE CYLINDER LINERS
Measure the diameter of the cylinder liners as illustrated.
Cylinder liner inside diameter
Class A
82.000 ÷ 82.010 mm
Class B
82.010 ÷ 82.020 mm
Class C
82.020 ÷ 82.030 mm
Check that the cylinder liner taper is within the specified limits.
Cylinder liner taper
< 0.005 mm
10 Engine
