Honda Civic manuals

Honda Civic Service Manual: Crankshaft and CKP Pulse Plate Removal, Installation, and Inspection (R18A9)

Honda Civic Service Manual / Powertrain / Internal Combustion Powertrain Control / Engine Control / Engine Control Sensors / Crankshaft and CKP Pulse Plate Removal, Installation, and Inspection (R18A9)

Removal

1. Intake Manifold and Throttle Body Assembly (Natural Gas Model)

1.

Remove the intake air duct.


2.

Remove the heater hose clamp bracket.



3.

Disconnect the water bypass hoses (A).


4.

Disconnect the PCV hose (B).


5.

Disconnect the connectors (C).


6.

Remove the harness clamps (D).


7.

Remove the intake manifold bracket.


8.

Remove the intake manifold and throttle body assembly from the cylinder head.


2. Engine Wire Harness

1.

Remove the engine wire harness.


3. Automatic Transmission Assembly (A/T)

1.

Remove the automatic transmission.


4. Drive Plate Assembly

1.

Remove the drive plate (A) and the washer (B).


5. A/F Sensor (Sensor 1)


1.

Disconnect the connector.


2.

Remove the A/F sensor (A).


6. Exhaust Chamber Cover (Natural Gas Model)

1.

Remove the exhaust chamber cover (A).


7. Catalytic Converter (Natural Gas Model)


1.

Remove the catalytic converter (A).


2.

Remove the catalytic conveter cover (B).


8. Thermostat Housing (Natural Gas Model)

1.

Remove the thermostat housing.


9. Alternator

1.

Remove the alternator.


10. Lower Torque Rod Bracket (A/T)

1.

Remove the lower torque rod bracket.


11. Intermediate Shaft Assembly

1.

Remove the crankshaft position (CKP) sensor cover (A).


2.

Remove the intermediate shaft (A) from the differential.


NOTE: Hold the intermediate shaft horizontal until it is clear of the differential to prevent damaging the oil seal (B).


12. A/C Compressor Bracket

1.

Remove the A/C compressor bracket.


13. Water Pump Pulley

1.

Remove the water pump pulley.


14. Auto Tensioner Assembly


1.

Remove the drive belt auto-tensioner (A).


2.

Check for oil leaks from the drive belt auto-tensioner damper (B) and check for damage to the damper rubber.


15. Cylinder Head Cover and/or Packing


1.

Remove the dipstick (A).


2.

Disconnect the breather hose (B).


3.

Remove the cylinder head cover.


16. Check The No.1 Piston at Top Dead Center (With Cam Chain Case/Oil Pump)

1.

Set the No. 1 piston at top dead center (TDC). The ‘‘UP’’ mark (A) on the camshaft sprocket should be at the top, and the TDC grooves (B) on the camshaft sprocket should line up with the top edge of the head.


17. Crankshaft Pulley

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1.

Hold the pulley with the holder handle (A) and the crankshaft pulley holder (B).


2.

Remove the bolt with a socket, 19 mm (C) and a breaker bar.


3.

Remove the crankshaft pulley.


18. Engine Oil Pump Assembly

1.

Disconnect the PCV hose.


2.

Remove the oil pump.


19. Cam Chain Auto-Tensioner

1.

Measure the tensioner rod length between the tensioner body and bottom of the flat surface section on the tensioner rod. If the length is more than the service limit, replace the cam chain.


Tensioner Rod Length

Service Limit:

14.5 mm (0.571 in)



2.

Loosely install the crankshaft pulley.


3.

Turn the crankshaft counterclockwise to compress the auto-tensioner.



4.

Rotate the crankshaft counterclockwise to align the holes on the lock (A) and the auto-tensioner (B).


5.

Insert a 1.0 mm (1/32 in) diameter pin (C) into the holes.


6.

Turn the crankshaft clockwise to secure the pin.


NOTE: If the holes in the lock and the auto-tensioner do not align, continue to rotating the crankshaft counterclockwise until the holes align, then install the pin.



7.

Remove the cam chain auto-tensioner.


8.

Remove the crankshaft pulley.


20. Cam Chain


1.

Remove the cam chain guide (A) and the cam chain tensioner arm (B).


2.

Remove the cam chain.


21. Cylinder Head Assembly


1.

Remove the cylinder head bolts. To prevent warpage, loosen the bolts in sequence, 1/3 turn at a time, repeat the sequence until all bolts are loosened.


2.

Remove the cylinder head.


22. Oil Pan Assembly

1.

Using a flat blade screwdriver, separate the oil pan from the lower block in the places shown.


2.

Remove the oil pan.


23. Engine Oil Strainer

1.

Remove the oil strainer.


24. Engine Baffle Plate

1.

Remove the baffle plate.


25. Connecting Rod Cap and The Bearing Half

1.

Remove the connecting rod caps/bearing. Keep all connecting rod caps/bearing halves in order.


26. Cylinder Lower Block Assembly

1.

Remove the 8 mm bolts in the sequence shown.


2.

Remove the bearing cap bolts. To prevent warpage, loosen the bolts in sequence 1/3 turn at a time; repeat the sequence until all bolts are loosened.


3.

Using a flat blade screwdriver, separate the lower block from the engine block in the places shown.


4.

Remove the lower block and the bearings. Keep all the bearings in order.


27. Crankshaft


1.

Lift the crankshaft (A) out of the engine block.


2.

Remove the thrust washers (B).


28. Crankshaft Oil Seal, Transmission Side

1.

Remove the transmission end crankshaft oil seal.


29. CKP Pulse Plate

1.

Remove the CKP pulse plate.


Inspection

1. Crankshaft - Inspection

Out-of-Round and Taper


1.

Clean the crankshaft oil passages with pipe cleaners or a suitable brush.



2.

Check the keyway slot and the threaded holes.


3.

Measure the out-of-round at the middle of each rod and main journal in two places. The difference between measurements on each journal must not be more than the service limit.


Journal Out-of-Round

Standard (New):

0.005 mm (0.00020 in) max.

Service Limit:

0.010 mm (0.00039 in)


4.

Measure the taper at the edges of each rod and the main journal. The difference between measurements on each journal must not be more than the service limit.


Journal Taper

Standard (New):

0.005 mm (0.00020 in) max.

Service Limit:

0.010 mm (0.00039 in)


Straightness


5.

Place the V-blocks on a flat surface.



6.

Check the total runout with the crankshaft supported on V-blocks.


7.

Measure the runout on all of the main journals. Rotate the crankshaft two complete revolutions. The difference between measurements on each journal must not be more than the service limit.


Crankshaft Total Runout

Standard (New):

0.03 mm (0.0012 in) max.

Service Limit:

0.04 mm (0.0016 in)


Installation

1. CKP Pulse Plate

1.

Install the CKP pulse plate.


2. Crankshaft

1.

Hold the crankshaft so rod journal No. 2 and rod journal No. 3 are straight up, then lower the crankshaft into the engine block.


NOTE: Be careful not to damage the journals and the CKP pulse plate.


2.

Apply new engine oil to the thrust washer surfaces. Install the thrust washers in the No. 4 journal of the engine block.


3. Main Bearing Clearance Inspection


1.

Clean each main journal and the bearing half with a clean shop towel.


2.

Place one strip of plastigage across each main journal.


3.

Reinstall the main bearings and the lower block, then torque the bolts to 25 N·m (2.5 kgf·m, 18 lbf·ft).


NOTE:

Apply new engine oil to the bolt threads and flanges.

Do not rotate the crankshaft during inspection.


4.

Tighten the bearing cap bolts an additional 57 °.



5.

Remove the lower block and the bearings again, and measure the widest part of the plastigage.


Main Bearing-to-Journal Oil Clearance

Standard (New):

0.018 - 0.034 mm (0.00071 -0.00134 in)

Service Limit:

0.045 mm (0.00177 in)


6.

If the plastigage measures too wide or too narrow, remove the crankshaft, and remove the upper half of the bearing. Install a new, complete bearing with the appropriate color code(s), and recheck the clearance. Do not file, shim, or scrape the bearings or the caps to adjust clearance.


7.

If the plastigage shows the clearance is still incorrect, try the next larger or smaller bearing (the color listed above or below the current one), and check again. If the proper clearance cannot be obtained by using the appropriate larger or smaller bearings, replace the crankshaft and start over.


4. Crankshaft Main Bearing - Selection

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1.

Numbers, letters, or bars have been stamped on either side of the lower block end as a code for the size of each of the five main journal bores. Write down the block bore codes. If you cannot read the codes because of accumulated dirt and dust, do not scrub them with a wire brush or scraper. Clean them only with solvent or detergent.


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2.

The main journal codes are stamped on the crankshaft.


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3.

Use the block bore codes and the main journal codes to select the appropriate replacement bearings from the following table.


NOTE:

Color code is on the edge of the bearing.

When using bearing halves of different colors, it does not matter which color is used in the top or bottom.


5. Cylinder Lower Block Assembly


1.

Remove all of the old liquid gasket from the lower block mating surfaces, the bolts, and the bolt holes.


2.

Clean and dry the lower block mating surfaces.


3.

Apply liquid gasket, (P/N 08718-0004 or 08718-0009) to the engine block mating surface of the lower block, and to the inside edge of the threaded bolt holes. Install the component within 5 minutes of applying the liquid gasket.


NOTE:

Apply a 2.5 mm (0.098 in) diameter bead of liquid gasket along the broken line (A).

If too much time has passed after applying the liquid gasket, remove the old liquid gasket and residue, then reapply new liquid gasket.



4.

Put the lower block on the engine block.


5.

Apply new engine oil to the threads and flange of the bearing cap bolts.


6.

Torque the bearing cap bolts, in sequence, to 25 N·m (2.5 kgf·m, 18 lbf·ft).


7.

Tighten the bearing cap bolts an additional 57 °.


8.

Torque the 8 mm bolts, in sequence, to 24 N·m (2.4 kgf·m, 17 lbf·ft).


NOTE:

Wait at least 30 minutes before filling the engine with oil.

Do not run the engine for at least 3 hours after installing the lower block.


6. Connecting Rod Bearing Clearance Inspection


1.

Clean the connecting rod journal and the bearing half with a clean shop towel.


2.

Place plastigage across the rod journal.


3.

Reinstall the bearing half and the cap, then torque the bolts to 20 N·m (2.0 kgf·m, 15 lbf·ft) +90 °.


NOTE:

Apply new engine oil to the bolt threads and flanges.

Do not rotate the crankshaft during inspection.


4.

Remove the connecting rod cap and the bearing half, and measure the widest part of the plastigage.


Connecting Rod Bearing-to-Journal Oil Clearance

Standard (New):

0.024 - 0.042 mm (0.00094 -0.00165 in)

Service Limit:

0.055 mm (0.00217 in)


5.

If the plastigage measures too wide or too narrow, remove the cap, and the upper half of the bearing. Install a new, complete bearing with the appropriate color code(s), and recheck the clearance. Do not file, shim, or scrape the bearings or the caps to adjust clearance.


6.

If the plastigage shows the clearance is still incorrect, try the next larger or smaller bearing (the color listed above or below the current one), and check the clearance again. If the proper clearance cannot be obtained by using the appropriate larger or smaller bearings, replace the crankshaft and start over.


7. Connecting Rod Bearing Selection

1.

Inspect each connecting rod for cracks and heat damage.


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2.

Each connecting rod has a tolerance range from 0 to 0.024 mm (0.00094 in), in 0.006 mm (0.00024 in) increments, depending on the size of its big end bore. It's then stamped with a number or bar (1, 2, 3, or 4/l, ll, lll, or llll) indicating the range. You may find any combination of numbers and bars in any engine. (Half the number or bar is stamped on the rod cap, the other half is on the connecting rod.) If you cannot read the code because of an accumulation of oil and varnish, do not scrub it with a wire brush or scraper. Clean it only with solvent or detergent.


Big End Bore Size:

48.0 mm (1.890 in)


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3.

The connecting rod journal codes are stamped on the crankshaft in either location.


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4.

Use the big end bore codes and the rod journal codes to select appropriate replacement bearings from the following table.


NOTE:

Color code is on the edge of the bearing.

When using bearing halves of different colors, it does not matter which color is used in the top or bottom.


8. Connecting Rod Cap and The Bearing Half


1.

Apply new engine oil to the threads of the connecting rod bolts.


2.

Seat the rod journals into connecting rod No. 1 and connecting rod No. 4. Line up the mark (A) on the connecting rod and the bearing cap.


3.

Install the bearing caps and the bolts finger-tight.


4.

Rotate the crankshaft clockwise, and seat the journals into connecting rod No. 2 and connecting rod No. 3. Line up the mark on the connecting rod and the bearing cap.


5.

Install the bearing caps and the bolts finger-tight.



6.

Torque the connecting rod bolts to 20 N·m (2.0 kgf·m, 14 lbf·ft).


7.

Tighten the connecting rod bolts an additional 90 °.


NOTE: Remove the connecting rod bolt if you tightened it beyond the specified angle, inspect the connecting rod bolts. Do not loosen it back to the specified angle.


9. Engine Baffle Plate

1.

Install the baffle plate.


10. Engine Oil Strainer

1.

Install the oil strainer (A) with new O-ring (B).


11. Oil Pan Assembly

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1.

Remove all of the old liquid gasket from the oil pan mating surfaces, the bolts, and the bolt holes.


2.

Clean and dry the oil pan mating surfaces.


3.

Apply liquid gasket, (P/N 08718-0004 or 08718-0009) to the engine block mating surface of the oil pan, and to the inside edge of the threaded bolt holes. Install the component within 5 minutes of applying the liquid gasket.


NOTE:

Apply a 2.5 mm (0.098 in) diameter bead of liquid gasket along the broken line (A).

If too much time has passed after applying the liquid gasket, remove the old liquid gasket and residue, then reapply new liquid gasket.



4.

Install the dowel pins (A).


5.

Install the oil pan (B) with new O-rings (C).


6.

Tighten the bolts in three steps. In the final step, torque all bolts, in sequence, to 18 N·m (1.8 kgf·m, 13 lbf·ft). Wipe off the excess liquid gasket on the each side of crankshaft pulley and flywheel/drive plate.


NOTE:

Wait at least 30 minutes before filling the engine with oil.

Do not run the engine within 3 hours after installing the oil pan.


12. Cylinder Head Assembly


1.

Clean the cylinder head and the engine block surface.


2.

Install a new coolant separator (A) in the engine block whenever the engine block is replaced.


3.

Install the new cylinder head gasket (B) and the dowel pins (C) on the engine block. Always use a new cylinder head gasket.


4.

Install the cylinder head on the engine block.


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5.

Measure the diameter of each cylinder head bolt at point A and point B.


6.

If either diameter is less than 10.6 mm (0.417 in), replace the cylinder head bolt.



7.

Apply new engine oil to the threads and under the bolt heads of all cylinder head bolts.


8.

Torque the cylinder head bolts in sequence to 40 N·m (4.1 kgf·m, 30 lbf·ft). Use a beam-type torque wrench. When using a preset click-type torque wrench, be sure to tighten slowly and do not overtighten. If a bolt makes any noise while you are torquing it, loosen the bolt and retighten it from the first step.


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9.

After torquing, tighten all cylinder head bolts in two steps (90 ° per step using the sequence shown in step 8). If you are using a new cylinder head bolt, tighten the bolt an extra 60 °.


NOTE: Remove the cylinder head bolt if you tightened it beyond the specified angle, and go back to step 5 of the procedure. Do not loosen it back to the specified angle.


13. Set The No.1 Piston at Top Dead Center (Without Cam Chain Case/Oil Pump)

1.

Set the camshaft to TDC. The ‘‘UP’’ mark (A) on the camshaft sprocket should be at the top, and the TDC grooves (B) on the camshaft sprocket should line up with the top edge of the head.


14. Cam Chain

1.

Install the cam chain on the crankshaft sprocket with the colored piece (A) aligned with the mark (B) on the crankshaft sprocket.


2.

Install the cam chain on the camshaft sprocket with the colored link plate (A) aligned with the mark (B) on the camshaft sprocket.


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3.

Install the cam chain guide (A) and the cam chain tensioner arm (B).


15. Cam Chain Auto-Tensioner

1.

Compress the cam chain auto-tensioner when replacing the cam chain. Remove the pin (A) from the auto-tensioner that was installed during removal. Turn the plate (B) counterclockwise, to release the lock, then press the rod (C), and set the first cam (D) to the first edge of the rack (E). Insert the 1.0 mm (1/32 in) diameter pin back into the holes (F).


NOTE: If the chain tensioner is not set up as described, the tensioner will be damaged.


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2.

Install the cam chain auto-tensioner.


3.

Remove the pin from the cam chain auto-tensioner.


16. Engine Oil Pump Assembly


1.

Check the oil pump oil seal for damage. If the oil seal is damaged, replace the oil seal.


2.

Remove all of the old liquid gasket from the oil pump mating surfaces, the bolts, and the bolt holes.


3.

Clean and dry the oil pump mating surfaces.


4.

Apply liquid gasket (P/N 08718-0004 or 08718-0009) to the engine block mating surface of the oil pump, and to the inside edge of the threaded bolt holes. Install the component within 5 minutes of applying the liquid gasket.


NOTE:

Apply a 2.5 mm (0.098 in) diameter bead of liquid gasket along the broken line (A), (B), and (C).

If too much time has passed after applying the liquid gasket, remove the old liquid gasket and residue, then reapply new liquid gasket.


5.

Apply liquid gasket (P/N 08718-0004 or 08718-0009) to the oil pan mating surface of the oil pump, and to the inside edge of the threaded bolt holes. Install the component within 5 minutes of applying the liquid gasket.


Apply a 2.5 mm (0.098 in) diameter bead of liquid gasket along the broken line (A).

If too much time has passed after applying the liquid gasket, remove the old liquid gasket and residue, then reapply new liquid gasket.


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6.

Set the edge of the oil pump (A) on the edge of the oil pan (B) with new O-rings (C).


7.

Install the oil pump on the engine block (D).


8.

Loosely install the dowel bolts (E), then tighten the 8mmbolts (F), the 6 mm bolts (G) and the dowel bolts.


9.

Wipe off the excess liquid gasket on the oil pan and oil pump mating surface.


NOTE:

When installing the oil pump, do not slide the bottom surface onto the oil pan mounting surface.

Wait at least 30 minutes before filling the engine with oil.

Do not run the engine within 3 hours after installing the oil pump.


17. Crankshaft Oil Seal, Transmission side


1.

Apply a light coat of new engine oil to the crankshaft and the lip of the crankshaft oil seal.


2.

Use the driver handle and the oil seal driver attachment, 96 mm to drive a new crankshaft oil seal (A) squarely into the engine block to the specified installed height.


3.

Measure the distance between the engine block (A) and the crankshaft oil seal (B).


Oil Seal Installed Height:

0.2-1.2 mm (0.008-0.047 in)


18. Crankshaft Pulley


1.

Clean the crankshaft pulley (A), the crankshaft (B), the bolt (C), and the washer (D).


2.

Lubricate with new engine oil as shown.


3.

Install the crankshaft pulley (A) onto the crankshaft (B) by aligning the flat sides (C) of the pulley with the flat sides (D) of the inner oil pump gear.


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When a new crankshaft or a new pulley bolt is installed


4.

Hold the pulley with the holder handle (A) and crankshaft pulley holder (B), torque the bolt to 180 N·m (18.4 kgf·m, 133 lbf·ft) with a torque wrench and a socket (C), then remove the bolt.


5.

Torque the bolt to 50 N·m (5.1 kgf·m, 37 lbf·ft) with a torque wrench and a socket.


NOTE: Tighten the crankshaft pulley bolt. Do not use an impact wrench.


6.

Tighten the bolt an additional 82 °.


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When the crankshaft or the pulley bolt is reused


7.

Hold the pulley with the holder handle (A) and crankshaft pulley holder (B), then torque the bolt to 70 N·m (7.1 kgf·m, 52 lbf·ft) with a torque wrench and a socket (C).


NOTE: Tighten the crankshaft pulley bolt. Do not use an impact wrench.


8.

Tighten the bolt an additional 90 °.


19. Valve Clearance Adjustment

1.

Set the No. 1 piston at top dead center (TDC). The ‘‘UP’’ mark (A) on the camshaft sprocket should be at the top, and the TDC grooves (B) on the camshaft sprocket should line up with the top edge of the head.


2.

Select the correct feeler gauge for the valve clearance you are going to check.


Valve Clearance

Intake:

0.18-0.22 mm (0.008-0.008 in)

Exhaust:

0.23-0.27 mm (0.010-0.010 in)

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3.

Insert the feeler gauge (A) between the adjusting screw (B) and the end of the valve stem on the No. 1 cylinder, and slide it back and forth; you should feel a slight amount of drag.



4.

If you feel too much or too little drag, loosen the locknut, and turn the adjusting screw (A) until the drag on the feeler gauge is correct.


5.

Tighten the locknut to the specified torque, and recheck the clearance. Repeat the adjustment if necessary.


Specified Torque

7 x 0.75 mm

14 N·m (1.4 kgf·m, 10 lbf·ft)

Apply new engine oil to the nut threads.



6.

Rotate the crankshaft clockwise. Align the No. 3 piston TDC groove (A) on the camshaft sprocket with the top edge of the head.


7.

Check and, if necessary, adjust the valve clearance on the No. 3 cylinder.



8.

Rotate the crankshaft clockwise. Align the No. 4 piston TDC groove (A) on the camshaft sprocket with the top edge of the head.


9.

Check and, if necessary, adjust the valve clearance on the No. 4 cylinder.



10.

Rotate the crankshaft clockwise. Align the No. 2 piston TDC groove (A) on the camshaft sprocket with the top edge of the head.


11.

Check and, if necessary, adjust the valve clearance on the No. 2 cylinder.


20. Cylinder Head Cover and/or Packing


1.

Thoroughly clean the head cover gasket and the groove.


NOTE: Check and, if necessary, replace the head cover gasket.


2.

Install the head cover gasket (A) in the groove of the cylinder head cover (B).


3.

Make sure the head cover gasket is seated securely.


4.

Clean the head cover contacting surfaces with a shop towel.



5.

Remove the old liquid gasket from the top edge matting surfaces of the oil pump (A) and cylinder head (B).


6.

Apply liquid gasket (P/N 08718-0004 or 08718-0009) to the chain case contact areas. Install the component within 5 minutes of applying the liquid gasket.


NOTE:

Apply a 5 mm (0.20 in) diameter bead of liquid gasket to the mating surfaces (C).

If too much time has passed after applying the liquid gasket, remove the old liquid gasket and residue, then reapply new liquid gasket.



7.

Install the cylinder head cover.


8.

Tighten the bolts in two steps. In the final step, torque all bolts in sequence to 10 N·m (1.0 kgf·m, 7 lbf·ft).


NOTE:

Wait at least 30 minutes before filling the engine with oil.

Do not run the engine for at least 3 hours after installing the head cover.



9.

Connect the breather hose (A).


10.

Install the dipstick (B).


21. Auto Tensioner Assembly

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1.

Install the drive belt auto-tensioner.


22. Water Pump Pulley

1.

Install the water pump pulley.


23. A/C Compressor Bracket

1.

Install the A/C compressor bracket.


24. Intermediate Shaft Assembly

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1.

Insert the intermediate shaft (A) into the differential correctly.


NOTE: Insert the intermediate shaft carefully to prevent damaging the oil seal (B).


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2.

Install the crankshaft position (CKP) sensor cover (A).


25. Lower Torque Rod Bracket (A/T)

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1.

Install the lower torque rod bracket.


26. Alternator

1.

Install the alternator.


27. Thermostat Housing (Natural Gas Model)

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1.

Install the thermostat housing (A), using a new gasket (B) and new O-ring (C).


28. Catalytic Converter (Natural Gas Model)

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1.

Install the catalytic conveter cover (A).


2.

Install the catalytic converter (B) with new gaskets (C).


29. Exhaust Chamber Cover (Natural Gas Model)

1.

Install the exhaust chamber cover (A).


30. A/F Sensor (Sensor 1)


1.

Install the A/F sensor (A).


2.

Connect the connector.


31. Drive Plate Assembly

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1.

Install the drive plate (A) and the washer (B), and tighten the eight bolts in a crisscross pattern in at least two steps.


32. Automatic Transmission Assembly (A/T)

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1.

Install the automatic transmission.


33. Engine Wire Harness

1.

Install the engine wire harness.


34. Intake Manifold and Throttle Body Assembly (Natural Gas Model)


1.

Install the intake manifold and throttle body assembly (A) with new gaskets (B).


2.

Tighten the bolts and nuts in a crisscross pattern in three steps, beginning with the inner bolt.


3.

Install the intake manifold bracket.



4.

Connect the PCV hose (A).


5.

Connect the connectors (B).


6.

Install the harness clamps (C).


7.

Connect the water bypass hoses (D).


8.

Install the heater hose clamp bracket.


9.

Install the intake air duct.


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