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Timing Chain Removal/Installation: Notes

Special Service Tool (SST) 

1.: Mazda SST number
2.: Global SST number
1: 49 B011 105
2: -
Adapter
G11429924Courtesy of MAZDA MOTORS CORP.
 1: 49 UN20 5072
2: 205-072
Holder
G11429925Courtesy of MAZDA MOTORS CORP.
 1: 49 UN30 3050
2: 303-050
Engine lifting bracket
G11429926Courtesy of MAZDA MOTORS CORP.
1: 49 C017 5A0
2: -
Engine support set
G11429927Courtesy of MAZDA MOTORS CORP.
 - -

Replacement Part 

Washer
Quantity: 1
Location of use: Engine front cover		 O-ring
Quantity: 1
Location of use: Electric variable valve timing motor/driver		 Cylinder head cover gasket
Quantity: 1
Location of use: Cylinder head cover
Front oil seal
Quantity: 1
Location of use: Engine front cover		 - -

Oil and Chemical Type 

Silicone sealant

Type: TB1217D or equivalent

WARNING:
  • A hot engine can cause severe burns. Turn off the engine and wait until it is cool before servicing.
CAUTION:
  • If the camshaft is rotated with the timing chain removed and the piston at the top dead center position, the valve may contact the piston and the engine could be damaged. When rotating the camshaft with the timing chain removed, rotate it after lowering the piston from the top dead center position.
  • When rotating the camshaft using a wrench on the cast hexagon, the wrench may contact the rocker arm and damage the rocker arm. To prevent damage to the rocker arm when holding the camshaft on the cast hexagon, use a wrench on the rear side of the engine as shown in the figure to secure a clearance between the cam.
Fig 1: Checking Clearance Between Cam Measurement
G09785080Courtesy of MAZDA MOTORS CORP.
NOTE:
  • Width at the cast hexagon of the camshaft is 22-24 mm {0.87-0.94 in}.
Fig 2: Checking Width At Cast Hexagon Of Camshaft Measurement
G11275727Courtesy of MAZDA MOTORS CORP.
  1. Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
  2. Remove the plug hole plate. (See PLUG HOLE PLATE REMOVAL/INSTALLATION .)
  3. Remove the ignition coil/ion sensors. (See IGNITION COIL/ION SENSOR REMOVAL/INSTALLATION .)
  4. Remove the front under cover No. 2. (See FRONT UNDER COVER No. 2 REMOVAL/INSTALLATION .)
  5. Remove the front splash shield (RH). (See SPLASH SHIELD REMOVAL/INSTALLATION .)
  6. Remove the drive belt. (See DRIVE BELT REMOVAL/INSTALLATION .)
  7. Drain the engine oil. (See ENGINE OIL REPLACEMENT .)
  8. Remove the oil pan. (See OIL PAN REMOVAL/INSTALLATION .)
  9. Remove in the order indicated in the table.
  10. Install in the reverse order of removal.
  11. Refill with the specified type and amount of the engine oil. (See ENGINE OIL REPLACEMENT .)
  12. Start the engine and inspect the following:
    • Leakage of engine oil.
    • Runout and contact of pulley and belt.
    • Ignition timing, idle speed and idle mixture. (See ENGINE TUNE-UP .)

SKYACTIV-G 2.0 

Fig 3: Exploded View Of Engine Components (SKYACTIV-G 2.0) With Torque Specifications
G11429930Courtesy of MAZDA MOTORS CORP.
COMPONENT DESCRIPTION

1 Dipstick
2 Cylinder head cover
(See Cylinder Head Cover Removal Note .)
(See Cylinder Head Cover Installation Note .)
3 Oil shower pipe
(See Oil Shower Pipe Installation Note .)
4 Drive belt auto tensioner
(See Drive Belt Auto Tensioner Installation Note .)
5 Water pump pulley
(See Water Pump Pulley Removal Note .)
(See Water Pump Pulley Installation Note .)
6 Crankshaft pulley lock bolt
(See Crankshaft Pulley Lock Bolt Removal Note .)
(See Crankshaft Pulley Lock Bolt Installation Note .)
7 Crankshaft pulley
8 Front oil seal
(See FRONT OIL SEAL REPLACEMENT .)
9 No. 3 engine mount
(See No. 3 Engine Mount Removal Note .)
(See No. 3 Engine Mount Installation Note .)
10 Electric variable valve timing motor/driver
(See Electric Variable Valve Timing Motor/Driver Installation Note .)
11 Engine front cover
(See Engine Front Cover Removal Note .)
(See Engine Front Cover Installation Note .)
12 Chain tensioner
(See Timing Chain Removal Note .)
(See Timing Chain Installation Note .)
13 Tensioner arm
(See Timing Chain Removal Note .)
(See Timing Chain Installation Note .)
14 Chain guide (No. 1)
(See Timing Chain Removal Note .)
(See Timing Chain Installation Note .)
15 Timing chain
(See Timing Chain Removal Note .)
(See Timing Chain Installation Note .)
16 Chain guide (No. 2)
17 Crankshaft sprocket
18 Oil pump chain tensioner
19 Oil pump driven sprocket
(See Oil Pump Driven Sprocket Removal Note (SKYACTIV-G 2.0) .)
(See Oil Pump Driven Sprocket Installation Note (SKYACTIV-G 2.0) .)
20 Oil pump chain
21 Oil pump drive sprocket
22 Key

SKYACTIV-G 2.5 

Fig 4: Exploded View Of Engine (SKYACTIV-G 2.5) With Torque Specifications
G11429933Courtesy of MAZDA MOTORS CORP.
COMPONENT DESCRIPTION

1 Dipstick
2 Cylinder head cover
(See Cylinder Head Cover Removal Note .)
(See Cylinder Head Cover Installation Note .)
3 Oil shower pipe
(See Oil Shower Pipe Installation Note .)
4 Drive belt auto tensioner
(See Drive Belt Auto Tensioner Installation Note .)
5 Water pump pulley
(See Water Pump Pulley Removal Note .)
(See Water Pump Pulley Installation Note .)
6 Crankshaft pulley lock bolt
(See Crankshaft Pulley Lock Bolt Removal Note .)
(See Crankshaft Pulley Lock Bolt Installation Note .)
7 Crankshaft pulley
8 Front oil seal
(See FRONT OIL SEAL REPLACEMENT .)
9 No. 3 engine mount
(See No. 3 Engine Mount Removal Note .)
(See No. 3 Engine Mount Installation Note .)
10 Electric variable valve timing motor/driver
(See Electric Variable Valve Timing Motor/Driver Installation Note .)
11 Engine front cover
(See Engine Front Cover Removal Note .)
(See Engine Front Cover Installation Note .)
12 Chain tensioner
(See Timing Chain Removal Note .)
(See Timing Chain Installation Note .)
13 Tensioner arm
(See Timing Chain Removal Note .)
(See Timing Chain Installation Note .)
14 Chain guide(No. 1)
(See Timing Chain Removal Note .)
(See Timing Chain Installation Note .)
15 Timing chain
(See Timing Chain Removal Note .)
(See Timing Chain Installation Note .)
16 Chain guide (No. 2)
17 Crankshaft sprocket
18 Oil pump chain tensioner
(See Oil Pump Chain Removal Note (SKYACTIV-G 2.5) .)
(See Oil Pump Chain Installation Note (SKYACTIV-G 2.5) .)
19 Balancer shaft sprocket
(See Oil Pump Chain Removal Note (SKYACTIV-G 2.5) .)
(See Oil Pump Chain Installation Note (SKYACTIV-G 2.5) .)
20 Oil pump chain
(See Oil Pump Chain Removal Note (SKYACTIV-G 2.5) .)
(See Oil Pump Chain Installation Note (SKYACTIV-G 2.5) .)
21 Oil pump driven sprocket
(See Oil Pump Chain Removal Note (SKYACTIV-G 2.5) .)
(See Oil Pump Chain Installation Note (SKYACTIV-G 2.5) .)
22 Oil pump chain guide
23 Oil pump drive sprocket
24 Key
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