Mazda MX-6 1998, Workshop Manual

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MECHANICAL [KL]
CYLINDER HEAD GASKET REPLACEMENT [KL]
W 6 U 1 1 0 W 1 8
Warning
• Fuel vapor is hazardous. It can very easily ignite, causing serious injury and damage. Always
keep sparks and flames away from fuel.
• Fuel line spills and leaks are dangerous. Fuel can ignite and cause serious injuries or death and
damage. Fuel can also irritate skin and eyes. To prevent this, always complete the “Fuel Line
Safety Procedures”. (Refer to 01-14 BEFORE REPAIR PROCEDURE.)
1. Remove the timing belt. (Refer to 01-1 OB TIMING BELT REMOVAL/INSTALLATION [KL].)
2. Remove the front pipe. (Refer to 01-15 EXHAUST SYSTEM REMOVAL/INSTALLATION.)
3. Remove the air cleaner, high-tension lead, and ignition coil.
4. Remove the intake manifold. (Refer to 01-13B INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [KL].)
5. Disconnect the fuel hose. (Refer to 01-14 BEFORE REPAIR PROCEDURE.) (Refer to 01-14 AFTER
REPAIR PROCEDURE)
6. Drain the engine coolant. (Refer to 01-12 ENGINE COOLANT REPLACEMENT.)
7. Remove in the order indicated in the table.
8. Install in the reverse order of removal.
9. Verify the engine oil level. (Refer to 01-11 ENGINE OIL INSPECTION.)
10. Inspect for the engine oil, engine coolant, and fuel leakage.
11. Verify the compression. (Refer to 01-10B COMPRESSION INSPECTION [KL].)
12. Start the engine and
(1) Inspect the pulleys and the drive belt for runout and contact.
(2) Verify the ignition timing. (Refer to 0 1 -1 0B ENGINE TUNE-UP [KL], Ignition Timing Adjustment.)
(3) Verify the idle speed. (Refer to 01-10B ENGINE TUNE-UP [KL], Idle Speed Adjustment.)
N - m { k g f m , f t - l b f }
W6U110WCS
11.3— 1 4 .2 N m
{115— 1 4 5 k g f c m ,
100— 1 2 5 i n lb f }
6 .9 — 9 .8 N m
{70— 1 0 0 K g fc m ,
6 0 .8 — 8 6 .8 i n lb f }
2 3 .1 — 2 5 .9
{2 .3 5 — 2 .6 5 ,1 7 .0 — 19 .1 }
+ 8 5 " - 9 5 * + 8 5 * - 9 5 *
19— 2 5 { 1 .9 — 2 . 6 ,1 4 — 18}
7 .9 — 1 0 .7 N m
{8 0 — 110 k g f cm ,
6 9 .5 — 9 5 .4 i n lb f }
7 .9 — 1 0 .7 N -m
{8 0 — 110 k g f-c m ,
6 9 .5 — 9 5 .4 in -lb f}
{4.4—6.2,32—44}
{ 1 .9 — 2 . 6 ,1 4 — 18}
0 1 -1 0 B -1 0