Standard Procedure - Measuring Piston Protrusion
WARNING: This page is about a different car, the 2005 Jeep Liberty. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
DO NOT Rotate the engine with the cylinder head off without first installing the cylinder liner retainers VM.1076. Failure to do so may result in the cylinder liner moving and a false piston protrusion reading. A false piston protrusion reading may result in a wrong cylinder head gasket selection.
| 1 - VM.1010 DIAL INDICATOR |
| 2 - VM.1076 CYLINDER LINER RETAINERS |
| 3 - VM.1013 STRAIGHT EDGE |
| 4 - CYLINDER BLOCK SURFACE |
- Use special tool VM.1010 with dial indicator special tool VM.1013. See Fig 1.
- Bring the piston of cylinder number 1 exactly to top dead center.
- Lye the straight edge special tool VM.1010 across the cylinder sleeve and zero the dial indicator on the cylinder block mating surface. See Fig 1.
- Lye the straight edge special tool VM.1010 across the cylinder sleeve, setup the dial indicator on the piston crown (above the center of the piston pin) 5 mm (1/8 in.) from the edge of the piston and note the measurement. See Fig 2.NOTE: Install the cylinder liner retainers VM.1076 before rotating the engine.
- Repeat the procedure with the rest of the cylinders.
- Establish the thickness of the steel gasket by averaging the four piston protrusion readings.
| Measure Dimension (mm) | 0.460-0.609 |
| Cylinder Head Gasket Thickness (mm) | 1.32 No Holes or Notches |
| Piston Clearance (mm) | 0.71-0.86 |
| - | |
| Measure Dimension (mm) | 0.610-0.709 |
| Cylinder Head Gasket Thickness (mm) | 1.42 1 Hole or Notch |
| Piston Clearance (mm) | 0.711-0.81 |
| - | |
| Measure Dimension (mm) | 0.710-0.810 |
| Cylinder Head Gasket Thickness (mm) | 1.52 2 Holes or Notches |
| Piston Clearance (mm) | 0.71-0.81 |