Engine Mechanical: Overhaul — Nissan Note E12 (2012-2016)

Disassembly

Remove intake manifold. Refer to " «EXPLODED VIEW»(ref-675577-S01019305002014120500000) ".
Remove exhaust manifold. Refer to " «EXPLODED VIEW»(ref-675577-S28226386642014120500000) ".
Remove oil pan (lower). Refer to " «EXPLODED VIEW»(ref-675577-S27892382432014120500000) ".
Remove ignition coil, spark plug, and rocker cover. Refer to " «EXPLODED VIEW»(ref-675577-S35355703582014120500000) ".
Remove fuel injector and fuel tube. Refer to " «EXPLODED VIEW»(ref-675577-S06336226562014120500000) ".
Remove front cover and timing chain. Refer to " «EXPLODED VIEW»(ref-675577-S42829733612014120500000) ".
Remove camshaft. Refer to " «EXPLODED VIEW»(ref-675577-S06901738552014120500000) ".
Remove cylinder head. Refer to " «EXPLODED VIEW»(ref-675577-S18302718572014120500000) ".

Assembly

Assembly is in the reverse order of disassembly.

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Scheme 149: Exploded View

Note. The following procedures explain how to disassemble the engine with the engine stand fastened to the bell housing. Some steps may be different if using a different type of engine stand.

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Scheme 150: DISASSEMBLY

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Scheme 157

Remove cylinder head. Refer to " «EXPLODED VIEW»(ref-675577-S18302718572014120500000) ".
Remove knock sensor. CAUTION: Carefully handle knock sensor avoiding shocks.
Remove the crankshaft position sensor cover (3), and then crankshaft position sensor (POS) (2). CAUTION: Avoid impacts such as a dropping. Do not disassemble. Keep sensor away from metal particles. Do not place the sensor in a location where it is exposed to magnetism. Do not reuse O-ring.
Remove oil pan (upper and lower). Refer to «OIL PAN AND OIL STRAINER»(ref-675577-S04208161342014120500000) .
Remove piston and connecting rod assembly: Before removing piston and connecting rod assembly, check the connecting rod side clearance. Refer to " «INSPECTION»(ref-675577-S15444315122014120500000) ". Position crankshaft pin corresponding to connecting rod to be removed onto the bottom dead center. Remove connecting rod cap. Using a hammer handle or similar tool, push piston and connecting rod assembly out through the cylinder head side. CAUTION: Do not damage mating surface with connecting rod cap. Do not damage the cylinder wall or crankshaft pin.
Remove connecting rod bearings. CAUTION: Identify original positions for installation, and store the bearings without mixing them up.
Remove piston rings from piston. Before removing piston rings, check the piston ring side clearance. Refer to " «INSPECTION»(ref-675577-S15444315122014120500000) ". Use a suitable tool (A) as shown in the figure. CAUTION: When removing piston rings, be careful not to damage the piston. Do not damage piston rings by expanding them excessively.
Remove piston from connecting rod using the following procedure: Remove snap rings using snap ring pliers (A). Heat piston to 60 to 70°C (140 to 158°F) with a heat gun (A). Push out piston pin using a punch of outer diameter approximately 18 mm (0.71 in).
Remove the main bearing cap. Measure crankshaft end play before loosening main bearing cap bolts. Refer to " «INSPECTION»(ref-675577-S15444315122014120500000) ". Loosen and remove bolts in several steps in reverse of the numerical order as shown in the figure. NOTE: When removing or installing signal plate, use socket (size T40). Remove the main bearing cap from the cylinder block while tapping lightly with a plastic hammer.
Remove crankshaft (2). CAUTION: Do not damage or deform signal plate (1) mounted on crankshaft. When setting crankshaft on a flat floor surface, use a block of wood to avoid interference between signal plate and the floor surface. Do not remove signal plate unless it is necessary to do so. NOTE: When removing or installing signal plate, use socket (size T40).
Pull rear oil seal out from rear end of crankshaft.
Remove main bearing (upper/lower) and thrust bearings from cylinder block and main bearing caps. CAUTION: Identify original installation positions, and store the bearings without mixing them up.
Remove oil jets. CAUTION: Insert the dowel pin of oil jet into the cylinder block dowel pin hole to loosen the bolt.

CAUTION

Do not reuse O-rings.

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Scheme 176

Fully air-blow engine coolant and engine oil passages in cylinder block, cylinder bore and crankcase to remove any foreign material. WARNING: Use goggles to protect your eyes.
Install cylinder block plugs. Apply liquid gasket to the thread of water drain plug (3). Use Genuine Silicone RTV Sealant, or equivalent. Refer to " «RECOMMENDED CHEMICAL PRODUCTS AND SEALANTS»(ref-675571-S19021012742014120500000) ". CAUTION: Do not reuse O-ring. Tighten each plug as specified below. Part Washer Tightening torque (1) Yes 54.0 N.m (5.5 kg-m, 40 ft-lb) (3) No 9.8 N.m (1.0 kg-m, 87 in-lb)
Install oil jets.
Install main bearings and thrust bearings: Remove dust, dirt, and engine oil on the bearing mating surfaces of cylinder block. Install thrust bearings to the both sides of the No. 3 journal housing (B) on cylinder block. Install thrust bearings with the oil groove (A) facing crankshaft arm (outside). Install the main bearings paying attention to the direction. Before installing main bearings, apply new engine oil to the bearing surface (inside). Do not apply engine oil to the back surface, but thoroughly clean it. When installing, align main bearing to the center position of cylinder block and main bearing cap. Ensure the oil holes on cylinder block and oil holes (A) on the main bearings (1) are aligned. NOTE: For assembly, the center position can be visually identified. To install the main bearing, obtain a proper fit. Do not allow the main bearing to lie off the cylinder block chamfer. To install the main bearing, obtain a proper fit. Do not allow the main bearing to lie off bearing cap chamfer.
Install signal plate to crankshaft if removed. Set the signal plate (1) with the flange facing toward the counterweight side (engine front side) to the crankshaft rear surface. After positioning crankshaft and signal plate with positioning dowel pin, tighten bolt. NOTE: Dowel pin of crankshaft and signal plate is provided as a set for each. Remove dowel pin. CAUTION: Be sure to remove dowel pin.
Install crankshaft to cylinder block. While turning crankshaft by hand, check that it turns smoothly. CAUTION: Do not install rear oil seal at this time.
Install main bearing caps. Install the main bearing cap while referring to the front mark (B) and the journal number stamp (A). NOTE: Main bearing cap cannot be replaced as a single part, because it is machined together with cylinder block.
Tighten main bearing cap bolts in numerical order as shown with the following steps: Apply new engine oil to threads and seat surfaces of the bolts. Tighten main bearing cap bolts in numerical order. Step 1: 32.4 N.m (3.3 kg-m, 24 ft-lb) Step 2: 60° clockwise Turn main bearing cap bolts 60 degrees clockwise (angle tightening) in numerical order as shown in the figure. CAUTION: Check and confirm the tightening angle by using the Tool (A) or protractor. Do not judge by visual inspection without the tool. Tool number: KV10112100 (BT-8653-A) After installing the main bearing cap bolts, check that crankshaft can be rotated smoothly by hand. Check crankshaft end play. Refer to " «INSPECTION»(ref-675577-S15444315122014120500000) ".
Install piston to connecting rod with the following procedure: Using a heat gun, heat the piston until the piston pin can be pushed in by hand without excess force [approximately 60 to 70°C (140 to 158°F)]. From the front to the rear, insert piston pin into piston and connecting rod. Set so that the front mark (A) on the piston head and the cylinder number (C) are in the position as shown in the figure. NOTE: The symbols without notes are for manufacturing. CAUTION: Press-fit the piston so as not to damage it. NOTE: The joint between the connecting rod and the piston pin is a press fit. Press-fit the piston pin (2) from piston surface (A) to the depth of 2.35 mm (0.092 in) (b). After finishing work, check that the piston (3) moves freely.
Using suitable tool (A), install piston rings. CAUTION: Do not damage piston. Do not damage piston rings by expanding them excessively. Position each ring with the gap as shown referring to the piston front mark (B). Install second ring with the stamped mark (E) facing upward. Stamped mark: Top ring: 1R Second ring: 2R
Install connecting rod bearings to connecting rod and connecting rod cap. When installing connecting rod bearings, apply new engine oil to the bearing surface (inside). Do not apply engine oil to the back surface, but thoroughly clean it. Install the bearing in the center position. NOTE: There is no stopper tab. Check that the oil holes on connecting rod and connecting rod bearing are aligned. Install the connecting rod in the dimension (A) as shown in the figure. NOTE: Install the connecting rod bearing in the center position with the dimension as shown. For service operation, the center position can be checked visually.
Install piston and connecting rod assembly to crankshaft. Position crankshaft pin corresponding to connecting rod to be installed onto the bottom dead center. Apply new engine oil sufficiently to the cylinder bore, piston and crankshaft pin. Match the cylinder position with the cylinder number on connecting rod to install. Using Tool (A) or suitable tool, install piston with the front mark on the piston head facing the front of the engine. CAUTION: Do not damage mating surface with connecting rod cap. Do not damage the cylinder wall or crankshaft pin. Tool number: EM03470000 (J-8037)
Install connecting rod cap. Match the stamped cylinder number marks (C) on connecting rod with those on connecting rod cap to install.
Inspect outer diameter of connecting rod bolts. Refer to " «INSPECTION»(ref-675577-S15444315122014120500000) ".
Tighten connecting rod bolt: Apply new engine oil to the threads and seats of connecting rod bolts. Install connecting rod bolts in several steps. Step 1 Tighten to: 27.4 N.m (2.8 kg-m, 20 ft-lb) Step 2 Completely loosen: 0 N.m (0 kg-m, 0 ft-lb) Step 3 Tighten to: 19.6 N.m (2.0 kg-m, 14 ft-lb) Then turn all connecting rod bolts 60 degrees clockwise (angle tightening). CAUTION: Check and confirm the tightening angle by using the Tool (A) or protractor. Avoid judgement by visual inspection without the Tool. Tool number: KV10112100 (BT-8653-A) After tightening connecting rod bolt, check that crankshaft rotates smoothly. Check the connecting rod side clearance. Refer to " «INSPECTION»(ref-675577-S15444315122014120500000) ".
Install oil pan (upper). Refer to " «REMOVAL AND INSTALLATION (UPPER OIL PAN)»(ref-675577-S21406744032014120500000) ". NOTE: Install the rear oil seal after installing the oil pan (upper).
Install rear oil seal. Refer to " «REAR OIL SEAL: REMOVAL AND INSTALLATION»(ref-675577-S33701663672014120500000) ".
Install flywheel (M/T models) or drive plate (CVT models). M/T models Secure crankshaft with a stopper plate (A) and tighten bolts crosswise over several times. Tool number: KV11105210 (J-44716) CVT models Secure crankshaft with a stopper plate (A) and tighten bolts crosswise over several times. Tool number: KV11105210 (J-44716) CAUTION: Do not damage or scratch and contact surface for clutch disc of flywheel.
Install knock sensor (1). Install connectors so that they are positioned toward the rear of the engine. CAUTION: Do not tighten bolt while holding the connector. If any impact by dropping is applied to knock sensor, replace it with a new one. NOTE: Check that there is no foreign material on the cylinder block mating surface and the back surface of knock sensor. Check that knock sensor does not interfere with other parts.
Install crankshaft position sensor (POS) (2) and O-ring (1) and then install the crankshaft position sensor cover (3) on the cylinder block (4). Tighten bolts with sensor inserted completely. CAUTION: Avoid impacts such as a dropping. Do not disassemble. Keep sensor away from metal particles. Do not place the sensor in a location where it is exposed to magnetism. Do not reuse O-ring.
For the oil level gauge guide (1), secure in position (B) shown to the water inlet clip (A) after inserting to the cylinder block side.
Assembly of the remaining components is in the reverse order of disassembly.

Engine Mechanical: Overhaul Nissan Note E12