Aluminium in Modern Automotive Engines
TECHNICAL BULLETIN
MODEL/DERIVATIVE: Freelander Bulletin No: CDS. ref: Issue: Date: 0026 L8665bu 1 22.08.01
AFFECTED RANGE: All K1.8 Freelander in VIN ranges: WA 600000 to YA 699999 YA 500000 to 1A 599999 1A 300000 to 1A 324161
PROBLEM: COOLANT LEAKAGE - CYLINDER HEAD GASKET FAILURE The customer may complain of: • Difficulty in maintaining coolant level. • Engine oil in coolant or coolant in engine oil. • Visible coolant leakage at cylinder head joint face. • Engine overheating. CAUSE: Failure of the cylinder head gasket, due to insufficient coolant flow during engine warm up. NOTE: A new design of cylinder head gasket and remotely mounted thermostat has been introduced into production at VIN 1A 324162. ACTION: Preliminary Checks: • • Carry out cooling system pressure test. Should there be any evidence of coolant leakage from the inlet manifold gasket, refer to Technical Bulletin 0002 - INLET MANIFOLD GASKET - COOLANT LEAK. • In the event that coolant leakage from the cylinder head gasket is confirmed, refer to the following procedure to replace the cylinder head gasket and modify the thermostat installation. Rectification Procedure: 1. Replace cylinder head gasket and dowels as detailed in Workshop Manual repair number 12.29.02, noting the following: Take special care not to damage the cylinder block sealing face when removing the plastic dowels. Replace the existing dowels with new dowels from gasket kit LVB000320L. Ensure that the fitted height of the new dowels is between 10 and 11mm.
TECHNICAL BULLETIN NO: 0026 ISSUE: 1 PAGE: 1 OF 3
2. Remove engine thermostat and rubber seal. Refer to Workshop Manual repair number 26.45.09, (pre 2001 MY) or 26.45.01, (2001 MY onwards). 3. Replace thermostat with thermostat blanking plate PEL000040 and reassemble using new rubber seal PEF10010. 4. Remove top and bottom coolant hoses. 5. Replace hoses with new hose assembly PCH001190 which incorporates the new thermostat, ‘A’ in illustration. Hose connections ‘B’ in
MODEL/DERIVATIVE: Freelander Bulletin No: CDS. ref: Issue: Date: 0026 L8665bu 1 22.08.01
AFFECTED RANGE: All K1.8 Freelander in VIN ranges: WA 600000 to YA 699999 YA 500000 to 1A 599999 1A 300000 to 1A 324161
PROBLEM: COOLANT LEAKAGE - CYLINDER HEAD GASKET FAILURE The customer may complain of: • Difficulty in maintaining coolant level. • Engine oil in coolant or coolant in engine oil. • Visible coolant leakage at cylinder head joint face. • Engine overheating. CAUSE: Failure of the cylinder head gasket, due to insufficient coolant flow during engine warm up. NOTE: A new design of cylinder head gasket and remotely mounted thermostat has been introduced into production at VIN 1A 324162. ACTION: Preliminary Checks: • • Carry out cooling system pressure test. Should there be any evidence of coolant leakage from the inlet manifold gasket, refer to Technical Bulletin 0002 - INLET MANIFOLD GASKET - COOLANT LEAK. • In the event that coolant leakage from the cylinder head gasket is confirmed, refer to the following procedure to replace the cylinder head gasket and modify the thermostat installation. Rectification Procedure: 1. Replace cylinder head gasket and dowels as detailed in Workshop Manual repair number 12.29.02, noting the following: Take special care not to damage the cylinder block sealing face when removing the plastic dowels. Replace the existing dowels with new dowels from gasket kit LVB000320L. Ensure that the fitted height of the new dowels is between 10 and 11mm.
TECHNICAL BULLETIN NO: 0026 ISSUE: 1 PAGE: 1 OF 3
2. Remove engine thermostat and rubber seal. Refer to Workshop Manual repair number 26.45.09, (pre 2001 MY) or 26.45.01, (2001 MY onwards). 3. Replace thermostat with thermostat blanking plate PEL000040 and reassemble using new rubber seal PEF10010. 4. Remove top and bottom coolant hoses. 5. Replace hoses with new hose assembly PCH001190 which incorporates the new thermostat, ‘A’ in illustration. Hose connections ‘B’ in