4. DISASSEMBLY, INSPECTION AND REASSEMBLY OF ENGINES Point 9 [Disassemble] Carefully remove the fuel injection valve so as not to leave the top end protector from being left inside the cylinder. [Reassemble] Replace the fuel injection valve protector with a new one. Point 10 [Disassemble] When removing each intake/exhaust valve from the cylinder head, use a valve spring compres- sor (see 11.1-4 in Chapter 11) and compress the valve spring and remove the valve cotter.) Keep each removed intake/exhaust valve after attaching a tag showing the corresponding cylin- der No.
If cotter burr is seen at the shaft of each intake/ exhaust valve stem, remove it with an oilstone and extract the valve from the cylinder head. [Reassemble] Replace the stem seal with a new one when an intake/exhaust valve is disassembled. Carefully install each valve after oil application so as not to damage the stem seal. Different stem seals are provided for the intake and exhaust valves. Do not confuse them since those for exhaust valves are marked with yellow paint. After assembling the intake/exhaust valve, stem seal, valve spring, seat, and cotter, tap the head of the valve stem lightly for settling. Do not forget to install the valve cap. 4-18 82E-5 – 98E-5 SERIES