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Engine Mechanical - Overhaul - 2.5L (L5): Other Mazda 3 BM

Mechanical 8 illustrations ~318 words

DISMOUNTING

  1. Dismount in the reverse order of mounting.

Scheme 434

Scheme 434: TIMING CHAIN DISASSEMBLY
Scheme 434: TIMING CHAIN DISASSEMBLY
  1. Disassemble in the order indicated in the table. (Scheme 434): Identifying Timing Chain Disassemble Order

Scheme 435

Scheme 435: Crankshaft Pulley Lock Bolt Disassembly Note
Scheme 435: Crankshaft Pulley Lock Bolt Disassembly Note
  1. Install the SST to the ring gear to lock the crankshaft against rotation. (Scheme 435): Identifying SST (Crankshaft Pulley Lock)

Scheme 436

Scheme 436: Front Oil Seal Disassembly Note
Scheme 436: Front Oil Seal Disassembly Note
  1. Remove the oil seal using a flat head screwdriver. (Scheme 436): Removing Oil Seal Using Flat Head Screwdriver

Scheme 437

Scheme 437: Chain Tensioner Disassembly Note
Scheme 437: Chain Tensioner Disassembly Note
  1. Hold the chain tensioner ratchet lock mechanism away from the ratchet stem with a thin screwdriver.
  2. Slowly press the tensioner piston.
  3. Hold the chain tensioner piston with a 1.5 mm {0.06 in} wire or paper clip. (Scheme 437): Holding Chain Tensioner Ratchet Lock Mechanism Away From Ratchet Stem With Thin Screwdriver

Scheme 438

Scheme 438: Oil Pump Sprocket Disassembly Note
Scheme 438: Oil Pump Sprocket Disassembly Note
  1. Temporarily install the crankshaft pulley and crankshaft pulley lock bolt to the crankshaft, and lock the oil pump against rotation as shown in figure.
  2. Remove the oil pump sprocket, and then remove the crankshaft pulley and crankshaft pulley lock bolt. (Scheme 438): Removing Crankshaft Pulley And Crankshaft Pulley Lock Bolt

Scheme 439

Scheme 439: CYLINDER HEAD DISASSEMBLY (I)
Scheme 439: CYLINDER HEAD DISASSEMBLY (I)
  1. Disassemble in the order indicated in the table. (Scheme 439): Identifying Cylinder Head Disassemble Order

Scheme 440

Scheme 440: Camshaft Sprocket Lock Bolt, Variable Valve Timing Actuator Lock Bolt Disassembly Note
Scheme 440: Camshaft Sprocket Lock Bolt, Variable Valve Timing Actuator Lock Bolt Disassembly Note
  1. Hold the camshaft by using a wrench on the cast hexagon as shown, and loosen the camshaft sprocket installation bolt or variable valve timing actuator installation bolt. (Scheme 440): Loosening Camshaft Sprocket Installation Bolt Or Variable Valve Timing Actuator Installation Bolt

Scheme 441

Scheme 441: Camshaft Cap Disassembly Note
Scheme 441: Camshaft Cap Disassembly Note
  1. Before removing the camshaft caps, inspect the following: Camshaft end play and camshaft journal oil clearance (See «CAMSHAFT INSPECTION»(ref-563089-S21380862502013062600000).) NOTE: The camshaft caps are numbered to make sure they are assembled in their original positions. When removed, keep the caps with the cylinder head they were removed from. Do not mix the caps.
  2. Loosen the camshaft caps bolts in 2-3 passes in the order shown in the figure. (Scheme 441): Identifying Camshaft Caps Bolts Loosening Order

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