Nissan Micra Cylinder Head Removal & Disassembly - Bolt Sequence (EM-10)
Step-by-step cylinder head removal and disassembly procedure with bolt-loosening sequence and figures.
This is page EM-10 from a Nissan factory service manual covering cylinder head removal and disassembly procedures. The Removal section instructs: (1) remove the timing belt, cautioning that after removal the crankshaft and camshaft must not be rotated separately to prevent contact between pistons and valves; (2) remove the oil pump idler gear (illustrated in figure SEM292); and (3) remove the cylinder head, loosening the head bolts in two or three steps following a numbered 10-bolt sequence diagram (SEM980). If the head is difficult to separate, the manual advises prying with a screwdriver between the head salience and the block (SEM038A). The Disassembly section instructs: (1) remove the thermostat housing, with an illustration (SEM030B) labeling the distributor, water outlet, fuel pump, and cylinder head bolt locations; (2) remove the camshaft pulley using special tool KV10109900 (SEM034B); and (3) remove the bolt stopper (SEM993). The page provides the loosening sequence and component locations needed to safely remove and begin disassembling the cylinder head on this engine.
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Frequently asked questions
- What is the caution after removing the timing belt?
- After removing the timing belt, do not rotate the crankshaft and camshaft separately, to prevent contact between pistons and valves.
- How should the cylinder head bolts be loosened?
- Loosen the bolts in two or three steps, following the numbered sequence shown in the diagram (bolts numbered 1 through 10).
- What should I do if the cylinder head is difficult to separate from the block?
- Pry with a screwdriver between the head salience and the block.
- What special tool is used to remove the camshaft pulley?
- Tool KV10109900 is shown holding the camshaft pulley during removal.
- What are the first steps of cylinder head disassembly?
- 1. Remove the thermostat housing, 2. Remove the camshaft pulley, 3. Remove the bolt stopper.
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