Cylinder head is leaking coolant from the exhaust manifold bolt hole

Tiny
FIREFOX419
  • MEMBER
  • 2003 FORD EXPLORER
  • 4.6L
  • V8
  • 4WD
  • AUTOMATIC
  • 70,000 MILES
Hello, the leaking hole is located on the bottom left of the passenger side. The culprit of this leak is from drilling and tapping a broken stud. Anyways, my question is, how much would you charge just to time the sprocket? I'm capable of replacing the entire head, but I have never messed with timing. (I would have everything out of the way and provide easy access. )
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Tuesday, September 10th, 2019 AT 3:21 PM

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Tiny
JACOBANDNICKOLAS
  • EXPERT
Welcome to 2CarPros.

We are not a service facility. We help people complete repairs at home (DIY).

As far as the labor for removal and replacement of the timing chain, the total job calls for 8.9 hours. It isn't an easy one. See pic 1

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However, I can provide the directions for removal and replacement if you want to do it yourself. Here are the directions. The attached pictures correlate with the directions. It is extensive, but if you take your time, you should be okay. Even if you chose not to do it, the directions will help with removing the head. If you do decide to do it, I recommend replacing the chains, tensioners, and all related components at the same time.

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2003 Ford Truck Explorer 4WD V8-4.6L VIN W
Engine Front Cover, Timing Gears, Chain and Tensioners
Vehicle Engine, Cooling and Exhaust Engine Timing Components Timing Chain Service and Repair Removal and Replacement Engine Front Cover, Timing Gears, Chain and Tensioners
ENGINE FRONT COVER, TIMING GEARS, CHAIN AND TENSIONERS
Engine Front Cover, Timing Gears, Chain and Tensioners

Part 1 Of 2
pic 2

Part 2 Of 2
pic 3

Special Tool(s)

Removal and Installation

CAUTION: Since the engine is not free - wheeling, timing procedures must be followed exactly or piston and valve damage can occur.

1. Drain the cooling system.
2. Remove the front crankshaft seal.
3. Remove the roller followers.
4. Drain the engine oil.

Pic 4

5. To remove individual components, carry out only the listed steps.

Part 1 Of 3

pic 5

Part 2 Of 3

pic 6

Part 3 Of 3

pic 7

6. Illustration 1 of 3. Remove the components in the order indicated.

Pic 8

7. Illustration 2 of 3. Remove the components in the order indicated.

Pic 9

8. Illustration 3 of 3. Remove the components in the order indicated.
9. To install, reverse the removal procedure.
10. Fill the engine with clean engine oil.
11. Fill and bleed the engine cooling system.
12. Install the roller followers.
13. Fill and bleed the power steering system.

Item 1: Power Steering Pump Pulley Removal Note

pic 10

1. CAUTION: While servicing the power steering system, make sure to plug all open hoses, line fittings, and fluid ports to prevent the entry of contaminants, or premature failure of power steering components can result.

Remove the power steering reservoir bolts.

Pic 11

2. Loosen the clamps, disconnect the hoses and remove the reservoir.
Drain the fluid into a suitable container.

Pic 12

3. Using the special tool, remove the power steering pump pulley.

Pic 13

4. Remove the nuts and position the wiring bracket out of the way.

Item 2: Power Steering Pressure Hose Removal Note

pic 14

1. Remove the brackets.

Item 6: Camshaft Position (CMP) Sensor Bolt Removal Note

pic 15

1. Remove the upper radiator hose bracket.

Pic 16

2. Remove the radio capacitors.

Pic 17

3. Remove the power steering reservoir bracket.
2. Remove the engine front cover fasteners in the sequence shown.

Item 24; Engine Front Cover Removal Note

pic 18

1. Remove the transmission cooler line bracket from the stud.

Pic 19

pic 20

2. Remove the engine front cover fasteners in the sequence shown.

Items 39 - 26: Crankshaft Gear Installation Note

pic 21

1. CAUTION: Rotate the crankshaft counterclockwise only. Do not rotate past the position shown or severe piston and/or valve damage will occur.

Using the special tool position the crankshaft.
Remove the special tool after crankshaft positioning.

Pic 22

2. Install the crankshaft sprocket with the flange facing forward.

Pic 23

3. Rotate the LH camshaft timing sprocket until the timing mark is approximately at the 12 o'clock position. Rotate the RH camshaft timing sprocket until the timing mark is at approximately the 11 o'clock position.

Pic 24

4. Install the timing chain guides.
1 Position the LH timing chain guide.
2 Install and tighten the LH bolts.
3 Position the RH timing chain guide.
4 Install and tighten the RH bolts.

Pic 25

5. If the copper links are not visible, mark one link on one end and one link on the other end, and use as timing marks.

Pic 26

6. Position the LH (inner) timing chain on the crankshaft sprocket, aligning the copper (marked) link with the timing mark on the sprocket.

Pic 27

7. NOTE: If necessary, adjust the camshaft sprocket slightly to obtain timing mark alignment.

Position the LH timing chain on the camshaft sprocket. Make sure the copper - colored link aligns with the camshaft sprocket timing mark.

Pic 28

8. Compress the LH tensioner plunger, using a vise.

Pic 29

9. Install a retaining clip on the LH tensioner to hold the plunger in during installation.

Pic 30

10. NOTE: The LH timing chain tensioner arm has a bump near the dowel hole for identification.

Position the LH timing chain tensioner arm on the dowel pin and install the LH timing chain tensioner.

Pic 31

11. Remove the retaining clip from the LH timing chain tensioner.

Pic 32

12. Position the RH (outer) timing chain on the crankshaft sprocket, aligning the copper (marked) link with the timing mark on the sprocket.

Pic 33

13. NOTE: If necessary, adjust the camshaft sprocket slightly to obtain timing mark alignment.

Position the RH timing chain on the camshaft sprocket. Make sure the copper - colored link aligns with the camshaft sprocket timing mark.

Pic 34

14. Compress the RH tensioner plunger, using a vise.

Pic 35

15. Install a retaining clip on the RH tensioner to hold the plunger in during installation.

Pic 36

16. NOTE: The RH timing chain tensioner arm has a bump near the dowel hole for identification.

Position the RH timing chain tensioner arm on the dowel pin and install the RH timing chain tensioner.

Pic 37

17. Remove the retaining clip from the RH timing chain tensioner.

Pic 38

18. As a post - check, verify correct alignment of all timing marks.

Pic 39

19. Install the crankshaft sensor ring on the crankshaft.

Item 24: Engine Front Cover Installation Note

pic 40

1. NOTE: If the engine front cover is not secured within four minutes, the sealant must be removed and the sealing area cleaned with metal surface cleaner. Allow to dry until there is no sign of wetness, or four minutes, whichever is longer. Failure to follow this procedure can result in future oil leakage.

Apply silicone gasket and sealant in the locations shown.

Part 1 Of 2

pic 41

Part 2 Of 2

pic 42

2. Install the engine front cover.

Pic 43

3. Tighten the four oil pan bolts in the sequence shown:
Stage 1: Tighten to 2 Nm (18 inch lbs.).
Stage 2: Tighten to 20 Nm (15 ft. Lbs.).
Stage 3: Tighten an additional 60 degrees.

Item 2: Power Steering Pressure Hose Installation Note

pic 44

1. Using the appropriate special tool, install a new O - ring seal on the power steering pressure hose fitting.

Item 1: Power Steering Pump Pulley Installation Note

pic 45

1. Using the special tool, install the power steering pump pulley.

________________________________________

I hope this helps in some way. Let me know if you have other questions.

Take care,
Joe
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Tuesday, September 10th, 2019 AT 8:01 PM

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