Disassembly
1. Unscrew the 12 exhaust manifold mounting nuts, remove the manifold and discard the gasket.
2. Install the LRT-12-034 valve spring compressor onto the valve plate and compress the valve spring.
3. Remove 2 crackers and remove the valve spring compressor.
4. Remove the valve spring with the plate.
5. Remove the valve from the cylinder head.
6. Install the LRT-12-206 valve stem seal remover onto the valve stem seal, twist to grip the seal and remove the seal.
7. Do the same on the remaining valves, laying out the removed parts in the order in which they were on the cylinder head.
Examination
1. Using a straightedge and feeler gauge, check the deformation of the lower plane of the head in the directions shown in the figure.
2. Clean and inspect the valve seats.
3. Insert the new valve into the guide so that the top of the valve stem is on the cut of the guide sleeve.
4. Install a dial indicator on the cylinder head and set the indicator to "zero" by resting its foot on the valve plate. By rocking the valve from side to side, determine the degree of wear of the valve guide.
TECHNICAL SPECIFICATIONS, Engine - Td6.
Assembly
1. Remove carbon deposits from the guide bushings and inlet channels, blow with compressed air.
2. Wipe the valve, spring plate and crackers.
3. Lubricate the valve with clean engine oil and insert it into the guide.
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4. Install the LRT-12-104 tool onto the valve stem, install a new valve stem seal and remove the LRT-12-104 tool. Fully seat the valve stem seal onto the valve guide by pressing it with the LRT-12-207 tool.
5. Install the valve spring with the plate.
6. Use the LRT-12-034 valve spring compressor to compress the valve spring. Put on the valve spring crackers and carefully release the spring.
7. Do the same with the remaining valves.
8. Wipe the exhaust manifold and the mating surface on the cylinder head.
9. Install the exhaust manifold onto the cylinder head using a new gasket.
10. Install the exhaust manifold mounting bolts and tighten them. Tightening torque 24 N·m.
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