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6. Remove the exhaust partition and exhaust duct from the oil pan.
7. Remove the double-hole absorber, exhaust partition, round rubber ring for water pipe
and the water pipe.
8. Check the water unit casing and oil pan for cracks or damage. Replace it if necessary.
9. Check the exhaust partition for damage or cracks. Replace it if necessary.
10.Check the exhaust duct and manifold for cracks or damage. Replace it if necessary.
11.Check the exhaust duct sealing ring and the outlet manifold sealing ring for aging or
cracking. Replace it if necessary.