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2008 - MX-5 - Engine

FRONT OIL SEAL REPLACEMENT [LF]

1. Remove the battery and battery tray. (See BATTERY REMOVAL/INSTALLATION [LF].)
2. Remove the air cleaner. (See AIR CLEANER ELEMENT INSPECTION [LF].)
3. Remove the drive belt. (See DRIVE BELT INSPECTION [LF].)
4. Remove the under cover. (See TRANSVERSE MEMBER REMOVAL/INSTALLATION.)
5. Remove the front suspension tower bar. (joint)
6. Remove the ignition coil. (See IGNITION COIL REMOVAL/INSTALLATION [LF].)
7. Remove the OCV connector.
8. Remove the cylinder head cover. (See TIMING CHAIN REMOVAL/INSTALLATION [LF].)
9. Remove the CKP sensor. (See CRANKSHAFT POSITION (CKP) SENSOR REMOVAL/INSTALLATION [LF].)
10. Remove in the order indicated in the table.
11. Install in the reverse order of removal.



1

Crankshaft pulley lock bolt

(See FRONT OIL SEAL REPLACEMENT [LF])

(See FRONT OIL SEAL REPLACEMENT [LF])

2

Crankshaft pulley

3

Front oil seal

(See FRONT OIL SEAL REPLACEMENT [LF])

(See FRONT OIL SEAL REPLACEMENT [LF])


Crankshaft Pulley Lock Bolt Removal Note

1. Remove the cylinder block lower blind plug.
2. Install the SST.

3. Turn the crankshaft clockwise until the crankshaft is in the No.1 cylinder TDC position (until the balance weight contacts the SST).
4. Hold the crankshaft pulley using the SSTs.

5. Remove the crankshaft pulley lock bolt.

Front Oil Seal Removal Note

1. Cut the oil seal lip using a razor knife.
2. Remove the oil seal using a screwdriver wrapped with a rag.

Front Oil Seal Installation Note

1. Apply clean engine oil to a new oil seal.
2. Push the front oil seal in the engine front cover by hand.
3. Tap the oil seal in evenly using the SST and a hammer.

Crankshaft Pulley Lock Bolt Installation Note

1. Install the SST on the camshaft as shown.

2. Verify that cylinder No.1 is at TDC of the compression stroke. (Crankshaft balance weight contacts SST.)
3. To position the crankshaft pulley, temporarily tighten it and, using a suitable bolt (M6 X 1.0 length 25 mm—35 mm {0.99 in—1.37 in}), fix the crankshaft pulley to the engine front cover.

4. Install the SSTs to the crankshaft pulley, lock the crankshaft against rotation.

5. Tighten the crankshaft pulley lock bolt in the order shown using the following two steps.
a. Tighten to 96—104 N·m {9.8—10.6 kgf·m, 70.9—76.7 ft·lbf}
b. Tighten 87°—93°
6. Remove the M6 x 1.0 bolt.
7. Remove the SST from the camshaft.
8. Remove the SST from the cylinder block lower blind plug.
9. Remove the SST from the crankshaft pulley.
10. Rotate the crankshaft clockwise two turns until the TDC position.
11. Install the cylinder block lower blind plug.



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