2022年11月2日星期三

How to Remove the Intake Manifold of Isuzu 4HJ1 N Series Engine

 

This article mainly introduces Isuzu of 4HJ1 N-Series Engine Inlet Manifold Removal

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Removal
1.Disconnect the battery cable negative terminal.
2.Drain the engine coolant.
3.Remove the intake throttle valve.
Refer to "Intake Throttle Valve"in this Section.
4.Remove the heater pipe.

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5. Remove the EGR valve.(Euro4 specification only)
Refer to"EGR Valve and EGR Cooler"in Section
6F, Engine Exhaust.

7.Remove the leak-off pipe.

8.Disconnect the leak-off hose clamp.

9. Remove the engine oil level gauge and guide tube.
10.Remove the injection pipe.
NOTE: Do not reuse the injection pipe.
11.Remove the oil cooler pipe.
Euro4 specification

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12. Remove the inlet manifold cover.(Euro2
specification only)
13. Remove the inlet manifold.
NOTE: Do not reuse the gasket.

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