TL AWD V6-3.7L (2010)
Piston: Testing and Inspection
Block and Piston Inspection
1. Remove the pistons from the engine block See: Crankshaft/Service and Repair/Crankshaft and Piston Removal.
2. Check the pistons for distortion or cracks.
3. Measure the piston skirt diameter at a point 16.0 mm (0.63 in) from the bottom of the skirt.
J35Z6 engine
Oversize Piston Skirt Diameter
J37A4 engine
4. Measure the wear and taper in direction X and Y at three levels in each cylinder as shown.
5. J35Z6 engine: If the measurements in any cylinder are beyond the oversize bore service limit, replace the engine block. If the engine block has to
be rebored, refer to step 8 after reboring.
J37A4 engine: If the measurements in any cylinder are beyond the service limit, replace the engine block. The J37A4 engine block can not be rebored.
