PRE-RELEASE
Engine Block Disassemble
| Engine Block Disassemble |
Special Tools
EN-8087 Cylinder GaugeFor equivalent regional tools, refer to Special Tools .
| 1. |
Clean the sealing material from the gasket mating surfaces (2).
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| 2. |
Clean the engine block (1) and lower crankcase in a cleaning tank with solvent appropriate for aluminum. Refer to
Adhesives, Fluids, Lubricants, and Sealers
for the recommended solvent.
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| 3. |
Flush the engine block with clean water or steam.
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| 4. |
Clean the oil passages.
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| 5. |
Clean the blind holes.
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| 6. |
Spray the cylinder bores and the machined surfaces with engine oil.
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| 7. |
Inspect the threaded holes. Clean the threaded holes with a rifle brush. If necessary, drill out the holes and install thread inserts. Refer to
Thread Inserts
.
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| 8. |
Inspect the engine block for sag in length and width on the sealing surfaces. 
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| 9. |
Inspect the engine block for distortion along the diagonals.
If the deck surface is out of specification, replace the block. Do not machine the block. 
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| 10. |
Clean the sealing material from the gasket mating surfaces (1) on the lower crankcase oil pan side.
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| 11. |
Inspect the crankshaft main bearing bores. Use the
EN-8087
gauge (1) to measure the bearing bore concentricity and alignment.
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| 12. |
Replace the engine block and bed plate if the crankshaft bearing bores are out of specification.
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| 13. |
Inspect the cylinder bores using the
EN-8087
gauge (1). Inspect for the following items:
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Wear
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Taper
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Runout
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Ridging
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| 14. |
Refer to
Engine Mechanical Specifications (1.6L LLU)
.
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| 15. |
If the cylinder bores are out of specification, replace the engine block.
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