Disassembly And Assembly
CYLINDER BLOCK
Disassembly and Assembly
CAUTION:
- Apply new engine oil to parts as marked in illustrations before installation.
- Place removed parts such as bearings and bearing caps in their proper order and direction.
- When installing the connecting rod nuts, and main bearing cap bolts, apply new engine oil to the threads and mating surfaces
- Do not allow any magnetic materials to contact the signal plate teeth on the drive plate.
DISASSEMBLY
1.Remove the engine assembly. Refer to "Removal and Installation" Removal And Installation.
2.Remove drive plate.
- Loosen bolts in diagonal order.
CAUTION:
- Do not disassemble drive plate.
- Place the drive plate with signal plate surface facing upward.
- Be careful not to damage or scratch drive plate. Especially avoiding deforming and damaging of signal plate teeth.
- Keep magnetic materials away from signal plate.
3.Remove pilot converter using Tool.
Tool number: ST16610001 (J-23907)
4.Install the engine on the engine stand.
CAUTION:
- Use an engine stand that has a load capacity [approximately 240kg (529) or more] large enough for supporting the engine weight.
- Before removing the hanging chains, make sure the engine stand is stable and there is no risk of overturning.
5.Remove the knock sensors.
CAUTION:
Carefully handle sensors avoiding shocking it.
6.Drain the engine of all coolant and oil.
7.Remove the oil pan. Refer to "Removal and Installation (Upper Oil Pan)" Upper Oil Pan.
8.Remove the timing chain primary and secondary. Refer to "Removal and Installation" Removal And Installation.
9.Remove the cylinder head. Refer to "Removal and Installation" Removal and Replacement.
10.Cut away liquid gasket and remove rear oil seal retainer using
Tool. Refer to "Precaution for Liquid Gasket" Precaution For Liquid Gasket.
Tool number: KV10111100 (J-37228)
CAUTION:
- Be careful not to damage mounting surface.
- If rear oil seal retainer is removed, replace it with a new one.
NOTE:
Rear oil seal and retainer form a single part and are handled as an assembly.
11.Remove the piston and connecting rod assemblies.
a.Position the crankshaft pin corresponding to the connecting rod to be removed onto the bottom dead center.
b.Remove the connecting rod cap.
c.Using a hammer handle or similar tool, push the piston and connecting rod assembly out to the cylinder head side.
- Before removing the piston and connecting rod assembly, check the connecting rod side clearance. Refer to "Inspection" Inspection.
12.Remove the connecting rod bearings.
CAUTION:
- When removing the connecting rod side bearings, note the installation position. Keep them in the correct order.
13.Remove the piston rings from the piston.
- Use a piston ring expander.
CAUTION:
- When removing the piston rings, be careful not to damage the piston. Do not expand the rings excessively.
- Be careful to mark the rings if they are to be reused so they are installed in their original position.
- Before removing the piston rings, check the piston ring side clearance. Refer to "Inspection" Inspection.
14.Remove the piston from the connecting rod as follows.
a.Using a snap ring pliers, remove the snap ring.
CAUTION:
Do not reuse snap rings.
b.Heat the pistons to 60� - 70�C (140� - 158�F).
WARNING:
Pistons contain heat. when working, wear protective equipment to avoid getting burned.
c.Push out the piston pin with a suitable tool, with an outer diameter approximately 20 mm (0.8 in).
15.Remove the baffle plate from the main bearing beam.
16.Loosen the bolts in the numerical order as shown and remove the main bearing beam, bearing caps and crankshaft.
- Before loosening the main bearing cap bolts, measure the crankshaft side clearance.
Refer to "Inspection" Inspection.
17.Remove the oil jets and dowel pins.
18.Remove the main bearings and thrust bearings from the cylinder block and main bearing caps.
- When removing them, note the direction and position. Keep them in the correct order for installation.
ASSEMBLY
1.Blow out the coolant and oil passages and cylinder bore to remove any foreign materials.
WARNING:
Use goggles to protect your eyes.
2.Install each plug to cylinder block as shown.
CAUTION:
Do not reuse washer.
(B) : Water drain plug
- Apply sealant to the thread of water drain plug (A).
Use Anaerobic Liquid Gasket or equivalent. Refer to EM124, "Precaution for Liquid Gasket".
NOTE:
For Canada, water drain plug (A) shown is not water drain plug but block heater. Refer to "Cylinder Block" [1][2]Specifications.
- Apply sealant to the thread of connector bolt (D).
Use Genuine RTV Silicone Sealant or equivalent. Refer to "Precaution for Liquid Gasket" Precaution For Liquid Gasket.
- Apply sealant to the thread of plug (C).
Use genuine high strength thread locking sealant or equivalent. Refer to "Precaution for Liquid Gasket" Precaution For Liquid Gasket.
- Tighten each plug and connector bolt as specified below.
3.Install the oil jets.
- Insert the oil jet dowel pin into the cylinder block dowel pin hole, and tighten the bolts.
4.Install the main bearings and the thrust bearings.
a.Remove dust, dirt, and oil on the bearing mating surfaces of the cylinder block and the main bearing cap.
b.Install the thrust bearings to both sides of the No. 3 journal housing on the cylinder block and the main bearing cap.
- Install the thrust bearings with the oil groove facing the crankshaft arm (outside).
- Install bearing with a projection on one end on cylinder block and bearing with a projection at center on cap. Align each projection with mating notch.
5.Set the upper main bearings in their proper positions on the cylinder block.
- Confirm the correct main bearings are used. Refer to "Inspection" Inspection.
6.Instructions for the re-use of the main bearing cap bolts.
- A plastic zone tightening method is used for tightening the main bearing cap bolts. Measure d1 and d2 as shown.
- For d2, select the minimum diameter in the measuring area.
- If the difference between d1 and d2 exceeds the limit, replace the bolts for assembly.
Limit (d1 - d2): 0.11 mm (0.0043 in)
7.After installing the crankshaft, lower main bearings, main bearing caps, main bearing beam, and bearing cap bolts. Tighten the bearing cap bolts in the numerical order as shown.
a.Make sure that the front marks on the main bearing beam faces the front of the engine.
b.Prior to tightening all the bearing cap bolts, place the bearing beam in its proper position by shifting the crankshaft in the axial position.
c.After tightening the bearing cap bolts, make sure the crankshaft turns smoothly.
d.Lubricate the threads and seat surfaces of the bolts with new engine oil.
e.Tighten the bolts in two stages:
CAUTION:
Measure the tightening angle in stage 2 using Tool. Do not measure visually.
Stage 1: 35.3 Nm (3.6kg-m, 26ft-lb)
Stage 2: 90� degrees clockwise
Tool number: KV10112100 (BT-8653-A)
8.Measure crankshaft end play.
- If beyond the limit, replace the bearing with a new one.
Standard : 0.10 - 0.25 mm (0.0039 - 0.0098 in)
Limit : 0.30 mm (0.0118 in)
9.Install the rear oil seal retainer using Tool (A).
Tool number: - (J-47128)
a.Loosen the wing nut (B) on the end of the Tool (A).
b.Insert the arbor (D) into the crankshaft pilot hole until the outer lip (C) of the Tool (A) covers the edge of the crankshaft sealing surface.
c.Tighten the wing nut (B) to secure the Tool (A) to the crankshaft.
d.Apply sealant to rear oil seal retainer as shown.
Use Genuine Silicone RTV Sealant, or equivalent. Refer to
"Precaution for Liquid Gasket" Precaution For Liquid Gasket.
- Assembly should be completed within 5 minutes after coating.
CAUTION:
The components must be installed within 5 minutes of the liquid gasket application. Then allow 30 minutes for the liquid gasket to set before operating the engine.
e.Lubricate the sealing surface of the new rear main seal with new engine oil.
f.Slide the new rear main seal (1) over the Tool (A) and onto the crankshaft.
g.Loosen the wing nut and push the threaded rod into the handle to remove the Tool (A).
h.Tighten the rear oil seal retainer bolts to specification.
10.Install the piston to the connecting rod.
a.Using suitable snap ring pliers, install the snap ring fully into the pin-groove of the piston rear side.
- Piston front mark (A)
- Oil hole (B)
- Connecting rod front mark (C)
- Cylinder No. (D)
CAUTION:
Do not reuse snap rings.
b.Install the piston to the connecting rod.
- Heat the piston until the piston pin can be pushed in by hand without excess force [approx. 60�
- 70�C (140� to 158�F)].
From the front to the rear, insert the piston pin into the piston and through the connecting rod.
WARNING:
Pistons contain heat. When working, wear protective equipment to avoid getting burned.
- Assemble so that the piston front mark (B) on the crown and the oil hole (C), connecting rod front mark (D) and Cylinder No.
(E) on the are positioned as shown.
-White arrow indicates : Engine front
- Piston grade number (A)
- Pin grade number (F)
c.Install the snap ring into the front of the piston pin-groove.
- After installing, check that the connecting rod pivots smoothly on the pin.
CAUTION:
Do not reuse snap rings.
11.Using a piston ring expander, install the piston rings.
CAUTION:
- Be careful not to damage the piston.
- When the piston rings are not replaced, remount the rings in their original positions.
- When replacing the piston rings, those without stamped surface (A) can be mounted either side up.
- Install the second ring with the stamped surface (B) facing upward. If the ring is not stamped it can face in either direction.
Top ring (A) :-
Second ring (B) : 2A
- Position each ring with the gap as shown, referring to the piston front mark.
12.Install the connecting rod bearings to the connecting rod and the connecting rod cap.
- When installing the connecting rod bearings, apply engine oil to the bearing surface (crankshaft side). Do not apply oil to the back surface (connecting rod and cap side), but thoroughly clean it.
- When installing, align the connecting rod bearing protrusion with the notch of the connecting rod to install.
- Check that the oil holes on the connecting rod and on the corresponding bearing are aligned.
13.Install the piston and connecting rod assembly into the corresponding cylinder.
- Position the crankshaft pin corresponding to the connecting rod to be installed onto the bottom dead center.
- Apply engine oil sufficiently to the cylinder bore, piston, and crankshaft pin.
- Match the cylinder position with the cylinder No. (B) on the connecting rod to install.
- Install the piston with the piston front mark (A) on the crown facing the front of the engine (white arrow), using a suitable tool.
- Oil hole (C)
CAUTION:
Be careful not to damage the crankshaft pin and cylinder wall, resulting from an interference of the connecting rod big end.
14.Install the connecting rod cap.
- Match the stamped cylinder number marks on the connecting rod with those on the cylinder cap for installation.
- Install the piston connecting rod assembly and cap so that the front mark on the cap and piston are facing the front of the engine.
-Lubricate the threads and seat surfaces with new engine oil.
15.Check the connecting rod cap bolts before reusing, then install in their original position in the connecting rod. The bolts should screw in smoothly by hand.
- Measure the outer diameter of the connecting rod cap bolts as shown.
Outer diameter (d) of the connecting rod cap bolt
Standard : 7.90 - 8.00 mm (0.3110 - 0.3150 in)
Limit : 7.75 mm (0.3051 in)
16.Tighten the connecting rod cap bolts in two stages using Tool:
Stage 1 : 19.6 Nm (2.0 kg-m, 14 ft-lb)
Stage 2 : 90� - 95� degrees clockwise
CAUTION:
Always use either an angle wrench or protractor. Avoid tightening based on visual check alone.
Tool number: KV10112100 (BT-8653-A)
- Apply engine oil to the threads and seats of the connecting rod cap bolts.
- After tightening the connecting rod cap bolts, make sure that the crankshaft rotates smoothly.
- Check the connecting rod side clearance. If beyond the limit, replace the connecting rod and/or crankshaft.
Connecting rod side clearance:
Standard : 0.20 - 0.35 mm (0.0079 - 0.0138 in)
Limit : 0.40 mm (0.0157 in)
17.Install the baffle plate to the main bearing beam.
18.Install the knock sensor.
- Make sure that there is no foreign material on the cylinder block mating surface and the back surface of the knock sensor.
- Install the knock sensor with the connector facing the rear of the engine.
- Do not tighten the bolts while holding the connector.
- Make sure that the knock sensor does not interfere with other parts.
CAUTION:
If any impact by dropping occurs to the knock sensor, replace it with new one.
19.Install the cylinder head. Refer to "Removal and Installation" Removal and Replacement.
20.Install the timing chain. Refer to "Removal and Installation" Removal And Installation.
21.Install the oil pan. Refer to "Removal and Installation (Upper Oil Pan)" Upper Oil Pan.
22.Remove the engine from the stand and install the engine assembly into the vehicle. Refer to "Removal and Installation" Removal And Installation.
23.Install the pilot converter with its chamfer facing crankshaft as shown.
White arrow indicates : Crankshaft side
24.Install the drive plate.
- Install the drive plate and reinforce plate in the direction as shown.
- Align dowel pins of crankshaft rear and drive plate with pin holes of each part.
- Secure the crankshaft using a suitable tool.
- Tighten the drive plate bolts in one or two steps.
25.Assembly of the remaining parts is in the reverse order of disassembly.
26.Fill the engine with the specified oil and coolant.
CAUTION:
Wait at least 30 minutes for the sealant to set-up before filling the engine with fluids and running it.