Timing Drive Components: Installation

Install the crankshaft sprockets.

Fig 1: Installing Crankshaft Sprockets
Courtesy of MAZDA MOTORS CORP.

NOTE: LH shown, RH similar.

Fig 2: Positioning Chain Tensioner In A Soft-Jawed Vise

Courtesy of MAZDA MOTORS CORP.

Position the chain tensioner in a soft-jawed vise.

NOTE: LH shown, RH similar.

Fig 3: Holding Chain Tensioner Ratchet Lock Mechanism Away From Ratchet Stem

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Hold the chain tensioner ratchet lock mechanism away from the ratchet stem with a small pick.

CAUTION: During tensioner compression, do not release the ratchet stem until the tensioner piston is fully bottomed in its bore or damage to the ratchet stem will result.

Slowly compress the timing chain tensioner.
Retain the tensioner piston with a 1.5 mm (0.06 in) wire or paper clip.

Fig 4: Retaining Tensioner Piston
Courtesy of MAZDA MOTORS CORP.
If timing marks on the timing chains are not evident, use a permanent-type marker to mark on the LH and RH timing chains.
1. Mark any link to use as the crankshaft timing mark.
2. Count 29 links counterclockwise from the crankshaft timing mark (including the starting link) and mark this link as the (LH chain Exhaust/RH chain Intake) cam sprocket timing mark.
3. Continue counting counterclockwise to 42 and mark this link as the (LH chain Exhaust/RH chain Intake) sprocket timing mark
  
  Fig 5: Identifying Timing Marks On Timing Chains
  Courtesy of MAZDA MOTORS CORP.
Position the guide and install the bolts.

Fig 6: Installing Timing Chain Guide
Courtesy of MAZDA MOTORS CORP.
Install the LH timing chain.
1. Position number one on the crankshaft.
2. Count twenty-nine links from the number one link, including the starting link. Position on the exhaust cam sprocket.
3. Continue counting to forty-two and position link on intake sprocket timing mark.
Fig 7: Installing LH Timing Chain
Courtesy of MAZDA MOTORS CORP.
Install the LH timing chain and tensioner arm.
1. Install the tensioner arm.
2. Position the tensioner.
3. Install the bolt.
Fig 8: Installing LH Timing Chain Tensioner Arm
Courtesy of MAZDA MOTORS CORP.
Install the crankshaft damper bolt and rotate the crankshaft keyway to the 3 o'clock position.

Fig 9: Crankshaft Keyway In 3 O'clock Position
Courtesy of MAZDA MOTORS CORP.
Verify that the RH camshafts are correctly positioned.

Fig 10: Aligning Camshafts
Courtesy of MAZDA MOTORS CORP.
Install the RH timing chain.
- Align the marks on the timing chain with the marks on the camshaft and crankshaft sprockets.
Fig 11: Installing RH Timing Chain
Courtesy of MAZDA MOTORS CORP.
Install the RH timing chain guide and install the bolts.

Fig 12: Installing RH Timing Chain Guide
Courtesy of MAZDA MOTORS CORP.
Install the RH timing chain tensioner and tensioner arm.
1. Install the tensioner arm.
2. Position the tensioner.
3. Install the bolts.
Fig 13: Installing RH Timing Chain Tensioner & Tensioner Arm
Courtesy of MAZDA MOTORS CORP.
Remove the LH and RH timing chain tensioner piston retaining wires.
Remove the crankshaft damper bolt.

Fig 14: Removing Crankshaft Damper Bolt
Courtesy of MAZDA MOTORS CORP.
Verify the timing with the following steps.
1. There should be 12 chain links between the front camshaft timing marks.
2. There should be 27 chain links between the camshaft and crankshaft timing marks.
3. There should be 30 chain links between the camshaft and crankshaft timing marks.
  
  Fig 15: Verifying Timing
  Courtesy of MAZDA MOTORS CORP.

CAUTION: This pulse wheel is used in several different engines. Install the pulse wheel with the key way in the slot stamped 20-25-34Y-30M (Color Blue).

Fig 16: Installing Ignition Pulse Wheel

Courtesy of MAZDA MOTORS CORP.

Install the ignition pulse wheel.
Install the LH and RH spark plugs. (RH shown, LH similar.)

Fig 17: Installing Spark Plugs
Courtesy of MAZDA MOTORS CORP.
Raise the vehicle.
Install the engine front cover. Refer to ENGINE FRONT COVER .