Mazda MX-5 Miata (1997+). Manual - part 56

 

  Index      Mazda     Mazda MX-5 Miata - service repair manual 1997 year

 

Search            

 

 

 

 

 

 

 

 

 

Content   ..  54  55  56  57   ..

 

 

Mazda MX-5 Miata (1997+). Manual - part 56

 

 

Fig. 9: Measuring Timing Belt Deflection 
Courtesy of MAZDA MOTORS CORP. 

HYDRAULIC LASH ADJUSTER (HLA) 

Removal 

Disconnect negative battery cable. Remove camshaft. See CAMSHAFT . Mark location of each HLA for 
reassembly reference. Remove HLA from cylinder head. 

Inspection 

Place HLA in palm of hand. Attempt to compress HLA plunger with thumb. If plunger compresses, replace 
HLA. 

NOTE:

If hydraulic lash adjusters are persistently noisy, check with manufacturer for 
availability of modified adjusters.

 

1997 Mazda MX-5 Miata 

1997-98 ENGINES 1.8L 4-Cylinder

  

Installation 

Insert HLA in original location. To complete installation, reverse removal procedure. Tighten camshaft bearing 
caps evenly in sequence to specification. See Fig. 10 or Fig. 11 . See TORQUE SPECIFICATIONS . 

CAMSHAFT 

Removal 

Remove cylinder head cover. Remove timing belt. See TIMING BELT . Remove distributor/camshaft position 
sensor. Reference mark camshafts, caps and sprockets, and remove sprockets. Loosen camshaft bearing cap 
bolts evenly in 5-6 steps, in sequence. See Fig. 10 or Fig. 11 . Remove camshafts. 

Inspection 

Check camshaft end play. Check camshaft journal diameters and bearing clearances. Check camshaft lobes for 
wear. See CAMSHAFT under ENGINE SPECIFICATIONS. If any measurement is not within specification, 
replace camshaft and/or cylinder head. 

Installation 

To install, reverse removal procedure. On both camshafts, apply small amount of silicone sealant to contact area 
of cylinder head/camshaft seal cover cap. Tighten camshaft bearing cap bolts evenly in sequence to 
specification. See Fig. 10 or Fig. 11 . See TORQUE SPECIFICATIONS .

NOTE:

On Miata, exhaust camshaft has a slot for camshaft position sensor drive. On 
Protege, exhaust camshaft has a slot for distributor drive. On all models, match 
mark camshafts and sprockets for installation reference.

 

1997 Mazda MX-5 Miata 

1997-98 ENGINES 1.8L 4-Cylinder

  

Fig. 10: Camshaft Bearing Cap Bolt Removal & Installation Sequence (Miata) Removal 
Courtesy of MAZDA MOTORS CORP. 

 

1997 Mazda MX-5 Miata 

1997-98 ENGINES 1.8L 4-Cylinder

  

Fig. 11: Camshaft Bearing Cap Bolt Removal & Installation Sequence (Miata) Installation 
Courtesy of MAZDA MOTORS CORP. 

 

1997 Mazda MX-5 Miata 

1997-98 ENGINES 1.8L 4-Cylinder

  

 

 

 

 

 

 

 

Content   ..  54  55  56  57   ..