Remove Land Rover Freelander L314

1. Remove cylinder head gaskets. See «CYLINDER HEAD GASKET - RIGHT»(ref-158807-S09152359062005011200000) «CYLINDER HEAD GASKET - LEFT»(ref-158807-S19641760122005011200000) .

Disassembly

1. Left Cylinder head: Remove 3 bolts securing left rear timing belt cover and remove cover. see scheme 153
2. Right Cylinder head: Remove 2 bolts securing right rear timing belt cover heat shield to cylinder head. see scheme 154
3. Right Cylinder head: Remove 3 bolts securing right rear timing belt cover; remove cover.
4. Position LRT-12-175 to rear camshaft gears as illustrated, remove and discard bolts securing gears to camshafts. (Scheme 219)
5. Remove rear camshaft gears, timing belt and LRT-12-175 as an assembly.
6. Remove LRT-12-175 from camshaft gears and remove timing belt from gears. Discard timing belt.
7. Remove spark plugs.
8. Remove and discard exhaust camshaft cap seal from cylinder head. see scheme 162 NOTE: Right cylinder head illustrated.
9. Progressively loosen then remove 7 bolts securing inlet manifold to cylinder head, remove inlet manifold and discard gasket. (Scheme 220)
10. Remove 4 bolts securing camshaft front timing belt cover backplate to cylinder head and remove backplate. (Scheme 221) NOTE: Left backplate illustrated.
11. Remove 2 bolts securing camshaft rear timing belt cover backplate to cylinder head and remove backplate. (Scheme 222) NOTE: left backplate illustrated.
12. Check end-float of camshafts using a Dial Test Indicator (DTI). (Scheme 223) CAUTION: If camshaft end-float exceeds limits given, repeat check with new camshaft(s). If end-float is still excessive, replace cylinder head and camshaft carrier as an assembly.
13. Using sequence shown, progressively loosen 22 bolts securing camshaft carrier to cylinder head until valve spring pressure is released and remove bolts. (Scheme 224)
14. Remove camshaft carrier.
15. Remove camshafts and discard oil seals. Note: Inlet camshafts are color coded orange, exhaust camshafts. see scheme 5
16. Using a stick magnet, remove 12 hydraulic tappets from cylinder head. CAUTION: Store hydraulic tappets in their fitted order and store upright. Maintain absolute cleanliness when handling hydraulic tappets. Failure to observe these precautions can result in engine failure.
17. Measure the outside diameter of hydraulic tappets. NOTE: Measurement must be taken half-way along tappet body.
18. Using LRT-12-034, and adapter LRT-12-034/1, compress valve spring, remove 2 collets, release valve spring and remove LRT-12-034. (Scheme 225)
19. Remove valve spring cap and valve spring.
20. Remove valve from cylinder head.
21. Remove valve stem oil seal using LRT-12-071. Discard stem seal. (Scheme 226)
22. Repeat procedure for remaining valves, keeping components in their fitted order.

Scheme 219

Scheme 220

Scheme 221

Scheme 222

Scheme 223

Scheme 224

Scheme 225

Scheme 226

Inspection

1. Clean camshafts, bearing running surfaces in carrier and cylinder head, carrier and cylinder head mating faces.
2. Inspect camshafts and replace camshafts if scored, pitted or excessively worn.
3. Position camshafts in cylinder head and place Plastigage across each journal. CAUTION: Ensure camshafts are in their correct fitted locations. Camshafts are color coded - Inlet - Orange; Exhaust - Blue.
4. Refit camshaft carrier, fit bolts and using sequence shown, tighten to 10 Nm (7 ft. lbs.). Do not rotate camshafts. see scheme 256
5. Using the sequence shown, progressively loosen and remove camshaft carrier bolts. Release and remove camshaft carrier from cylinder head. (Scheme 224)
6. Measure widest part of Plastigage on each journal. (Scheme 227)
7. If clearance is excessive, fit new camshafts and repeat check. If clearance is still excessive renew cylinder head.
8. Remove all traces of Plastigage using an oily rag.
9. Clean sealing surfaces of cylinder heads. Clean inlet and exhaust manifold mating faces. CAUTION: Do not use a metal scraper.
10. Decarbonize combustion areas of cylinder heads.
11. Blow out all oilways and coolant passages.
12. Check cylinder head for damage, pay particular attention to sealing faces.
13. Check cylinder head face for warping, across center and from corner to corner. (Scheme 228)
14. Check cylinder head height. (Scheme 229)
15. Check condition of valve springs and measure free length of springs.
16. Remove carbon deposits from exhaust valve guides using a 6 mm diameter reamer inserted from combustion side of cylinder head. (Scheme 230)
17. Remove carbon from inlet valve guides, inlet and exhaust valves and valve seat inserts. Remove all loose carbon on completion.
18. Check and record existing valve stem diameters "A", replace any valve with stem diameter less than specified. (Scheme 231)
19. Check inlet and exhaust valve to guide clearances "B" using the following procedures.
20. Insert each valve into its respective guide. (Scheme 232)
21. Extend valve head 15 mm (0.6 in) out of guide and position Dial Test Indicator (DTI) gauge to rear of valve head.
22. Move valve towards front of cylinder head and zero gauge ensuring that stylus of gauge remains in contact with valve head.
23. Move valve towards rear of cylinder head, record gauge reading obtained to give valve stem to guide clearance "B".
24. Remove valves ensuring they are retained in their fitted order.
25. Renew valves and/or guides as necessary.
26. To replace valve guides support cylinder head face down on wooden blocks.
27. Position LRT-12-519-3 in tappet bore and drift out valve guide using LRT-12-519-1. (Scheme 233) CAUTION: Retain guides in their fitted order.
28. Identify type of valve guide fitted. (Scheme 234): "A" - Standard production "B" - Service replacement CAUTION: Standard production valve guides A must be replaced with service replacement guides "B".
29. Locate valve guide in valve guide bore with identification groove towards valve seat and position depth gauge LRT-12-519-2 onto valve guide. (Scheme 235) CAUTION: Cylinder head and valve guides must be at room temperature when fitting guides.
30. Position nylon guide LRT-12-519-3 in cylinder head, press guide into bore using driver LRT-12-519-1 until depth gauge contacts cylinder head.
31. Check that fitted height of valve guide, "A", is 6.00 mm (0.24 in). (Scheme 236)
32. Check condition of valve seats and existing valves that are to be re-used.
33. Renew valve seat inserts as necessary. CAUTION: Do not damage counterbore when removing insert.
34. Cool replacement valve seat inserts using liquid nitrogen and press into cylinder head in one continuous operation. CAUTION: Do not heat cylinder head. Inserts must not stand proud of combustion face on completion of cutting operation.
35. Cut valve seats using a suitable pilot and the following cutters: 15° - To cut first angle 45° - Make final cut and remove any burrs 60° - To narrow seat and obtain correct valve seat width
36. Check valve seat width and face angle. (Scheme 237): Seat width - "A" - Inlet = 1.2 mm (0.05 in) Exhaust = 1.6 mm (0.06 in) Valve face angle - "B" - Inlet and exhaust = 45°
37. Lap each valve to its seat using grinding paste.
38. Apply Prussian Blue to valve seat, insert valve and press it into position several times without rotating. Remove and check valve for even and central seating: seating position shown by Prussian Blue should be in the center of valve face: High towards stem, increase 60° cut and restore seat width. Low towards edge, increase 45° cut and restore seat width. Lap and recheck valve seating.
39. Check valve stem fitted height - "A". (Scheme 238) CAUTION: If valve stem fitted height is above service limit, fit new valve and re-check. If still over limit, renew valve seat insert.
40. Clean valve springs and lubricate valves.

Scheme 227

Scheme 228

Scheme 229

Scheme 230

Scheme 231

Scheme 232

Scheme 233

Scheme 234

Scheme 235

Scheme 236

Scheme 237

Scheme 238