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Installers may use the table below to select the correct repairfor the applicable engine/model.

Year/Model                        ProceedTo:

2002-’06 MPV 3.0L            RepairProcedure A

2003-’08 Mazda6 3.0L       RepairProcedure B

2001-’06 Tribute 3.0L         RepairProcedure A
(built before Jan. 17, 2006)

2006 Tribute 3.0L               RepairProcedure B
(built after Jan. 17, 2006)  

2008 Tribute 3.0L               RepairProcedure B
(engine build date
before May 16, 2007)*

2008 Tribute 3.0L              Servicebulletin procedure doesnot apply, refer to
(engine build date
             workshopmanual, section 01-01
after May 16, 2007)*
           

*Engine build date can be located on the left-hand cam coverengine label.

 

Repair Procedure A

Caution: Before attempting a repair on a 2001-’06 Tribute,confirm if the water pump pulley is driven by the intake or the exhaustcamshaft. Be sure to use the correct repair procedure. The water pump on2001-’06 Tribute vehicles built before Jan. 17, 2006 are driven by the “intake”camshaft pulley.

1. Verify that the water pump is driven by the intakecamshaft pulley. See Fig. A1.

2. Turn on the engine.

3. Verify the customer concern by using a stethoscope andconventional diagnostics to isolate the sound. If the noise is coming from theleft-hand valve cover area near cylinder #6, proceed to Step 4.

4. Turn off the engine.

5. Remove the left-hand valve cover.

6. Rotate the engine clockwise until cylinder #6 ­intake camlobes are pointing up (valves are fully closed). See Fig. A/B2.

7. Remove all intake camshaft caps (do not remove theexhaust camshaft caps).

Note: The camshaft caps must be completely lifted off, andthen set back into position. Loosening and retorquing the cap bolts is notsufficient.

8. Reinstall all camshaft caps and torque bolts (except camcap 8L) in the sequence shown in Fig. A3 to 8 Nm (72 lb.-in.).

9. Using a screwdriver positioned on each side of the top ofcam cap 8L, apply hand pressure and shift the cam cap toward the exhaust sideof the cylinder head. See Fig. A4.

10. While holding cam cap 8L in the shifted position, torquefastener #9 (inboard) first, to 8 Nm (72 lb.-in.), then torque fastener #10.

11. Reinstall the left-hand valve cover.

12. Verify the repair.

 

Repair Procedure B

Caution: Before attempting a repair on a 2006 Tribute,confirm if the water pump pulley is driven by the intake or exhaust camshaft. Besure to use the correct repair procedure. The water pump on 2006 Tributevehicles built after Jan. 17, 2006, are driven by the “exhaust” camshaftpulley.

1. Verify that the water pump is driven by the exhaustcamshaft pulley. See Fig. B1

2. Turn on the engine.

3. Verify the concern by using a stethoscope and­conventional diagnostics to isolate the sound. If the noise is coming from theleft-hand valve cover area near cylinder #6, proceed to Step 4.

4. Turn off the engine.

5. Remove the left-hand valve cover.

6. Rotate the engine clockwise until cylinder #6 exhaust camlobes are pointing up (valves are fully closed). See Fig. A/B2.

7. Remove all exhaust camshaft caps (do not remove theintake camshaft caps).

Note: The camshaft caps must be completely lifted off, thenset back into position. Loosening and retorquing cap bolts is not sufficient.

8. Reinstall all camshaft caps and torque bolts (except camcap 4L) in the sequence shown in Fig. B3 to 8 Nm (72 lb.-in.).

9. Using a screwdriver positioned on each side of the top ofcam cap 4L, apply hand pressure and shift the cam cap toward the exhaust sideof the cylinder head. See Fig. B4.

10. While holding cam cap 4L in the shifted position, torquefastener #9 (inboard) first, to 8 Nm (72 lb.-in.), then torque fastener #10.

11. Reinstall the left-hand valve cover.

12. Verify the repair.

Courtesy of ALLDATA. fig. a1fig. a/b2fig. a3fig. a4fig. b1fig. b3Fig. B4

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