Piston, Ring, Pin And Connecting Rod Removal and Installation (2014 2015 2016 2017): Removal

Cylinder Head - Remove
Remove the cylinder head .
Oil Pan - Remove
Remove the oil pan .
Oil Filter Base/Oil Cooler/Oil Filter Assembly - Remove

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Remove the oil filter base/oil cooler/oil filter assembly.
Engine Oil Strainer and Baffle Plate - Remove

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Remove the oil strainer (A) and the baffle plate (B).
Metal or Hard Carbon - Remove

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If you can feel a ridge of metal or hard carbon around the top of any cylinder, remove it with a ridge reamer (A). Follow the reamer manufacturer's instructions. If the ridge is not removed, it may damage the piston as it's pushed out.

Piston/Connecting Rod Assembly - Remove

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1. Remove the connecting rod caps after setting the connecting rod journal at bottom dead center (BDC) for each cylinder. Remove the piston/connecting rod assembly by pushing on the connecting rod. Take care not to damage the oil jets, the connecting rod journal, or the cylinder with the connecting rod.

2. Remove the bearing from the rod cap. Keep all caps/bearings in order.

3. Remove the upper bearing halves from the connecting rods, and set them aside with their respective caps.

4. After removing a piston/connecting rod assembly, reinstall the rod cap on the rod.

Mark the cylinder number on the connecting rod and the connecting rod bearing cap to avoid mixing them up during reassembly.
The factory markings on the connecting rods do not indicate cylinder position.

Piston Ring - Remove

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1. Using a ring expander (A), remove the old piston rings (B).

2. Clean all the ring grooves thoroughly with a squared-off broken ring, or a ring groove cleaner with a blade to fit the piston grooves. File down the blade, if necessary. The top ring and second ring grooves are 1.2 mm (0.047 in) wide, and the oil ring groove is 2.0 mm (0.079 in) wide. Do not use a wire brush to clean the ring grooves, or cut the ring grooves deeper with the cleaning tool.

NOTE: If the piston is to be separated from the connecting rod, do not install new rings yet.

Piston Ring End Gap - Inspect

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1. Using a piston, push a new ring (A) into the cylinder bore 15-20 mm (0.59-0.79 in) from the bottom.

2. Measure the piston ring end-gap (B) with a feeler gauge:

If the gap is too small, check to see if you have the proper rings for your engine.
If the gap is too large, recheck the cylinder bore diameter against the wear limits . If the bore is over the service limit, the engine block must be rebored.

Top Ring:

Second Ring:

Oil Ring:

Standard (New):	0.20-0.70 mm (0.0079-0.0276 in)
Service Limit:	0.80 mm (0.0315 in)

Standard (New):	0.40-0.55 mm (0.0157-0.0217 in)
Service Limit:	0.70 mm (0.0276 in)

Standard (New):	0.20-0.35 mm (0.0079-0.0138 in)
Service Limit:	0.60 mm (0.0236 in)

Piston Ring End-Gap

Piston Pin - Remove

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1. Apply new engine oil to the piston pin snap rings (A) and turn them in the ring grooves until the end gaps are lined up with the cutouts in the piston pin bores (B).

NOTE: Take care not to damage the ring grooves.

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2. Remove the snap rings (A) from both sides of each piston. Start at the cutout in the piston pin bore. Remove the snap rings carefully so they do not go flying or get lost. Wear eye protection.

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3. Separately heat each piston and connecting rod assembly to about 158 deg.F (70 deg.C), then remove the piston pin.

Piston Pin - Inspect

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1. Measure the diameter of the piston pin.

Piston Pin Diameter

Service Limit:

21.954 mm (0.86433 in)

Standard (New):

21.962-21.965 mm (0.86464-0.86476 in)

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2. Zero the gauge (A) to the piston pin diameter.

3. Check the difference between the piston pin diameter and the piston pin hole diameter on the piston.

Piston Pin-to-Piston Clearance

Standard (New):	-0.0050-0.0010 mm (-0.000197-0.000039 in)
Service Limit:	0.004 mm (0.00016 in)

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4. Measure the piston pin-to-connecting rod clearance.

Piston Pin-to-Connecting Rod Clearance

Standard (New):	0.005-0.014 mm (0.00020-0.00055 in)
Service Limit:	0.019 mm (0.00075 in)