Engine System - General Information: Diagnosis Land Rover Range Rover III facelift

INSPECTION AND VERIFICATION

1. Verify the customer concern.
2. Visually inspect for obvious signs of mechanical or electrical damage.
3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step

CAMSHAFT SURFACE INSPECTION

1. Inspect camshaft lobes for pitting or damage in the active area. Minor pitting is acceptable outside the active area.

EXHAUST MANIFOLD CLEANING AND INSPECTION

1. Inspect the cylinder head joining flanges of the exhaust manifold for evidence of exhaust gas leaks.
2. Inspect the exhaust manifold for cracks, damaged gasket surfaces, or other damage that would make it unfit for further use.

Scheme 36

1. Carry out a visual inspection. Clean the piston skirt, pin bush, ring grooves and crown and check for wear or cracks. If there are signs of wear on the piston skirt, check whether the connecting rod is twisted or bent.

LEAKAGE TEST USING SMOKE TEST EQUIPMENT

Note. The vehicle battery must be in good condition and fully charged before carrying out this procedure.

Note. On vehicles with 3.0L TDV6, it will be necessary to insert smoke at both air cleaner outlet pipes independently if the right hand turbocharger and associated hoses are to be tested.

Note. In some cases it may be necessary to remove undertrays, trim or engine covers to obtain access to all potential leak locations.

Note. Some variation in the illustrations may occur, but the essential information is always correct.

Note. For further information regarding operation of the test equipment refer to the manufacturers operators manual supplied with the kit.

Scheme 37

Scheme 38

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Scheme 40

Scheme 41

1. Install the smoke test equipment to a suitable location under the hood.
2. Connect a suitable compressed air line to the smoke test equipment.
3. Connect the smoke test equipment positive power cable to the battery positive terminal.
4. Connect the smoke test equipment negative cable to a suitable body ground point.
5. Observe the power indicator lamp on the smoke test equipment. Make sure that a continuous green light is displayed.
6. Disconnect the air cleaner outlet pipe(s).
7. Connect the smoke test equipment supply hose to the air cleaner outlet pipe. Install the appropriate adapter to the air cleaner outlet pipe. Connect the smoke test equipment supply hose to the adapter link hose.
8. Switch the smoke test equipment on.
9. Remove the oil filler cap, and observe until a constant flow of smoke is visible leaving the oil filler orifice. Install the oil filler cap.
10. Using the torch supplied in the kit set to white light, look for escaping smoke. Alternatively, use the ultraviolet light to look for fluorescent dye deposits at the source of a leak.