Yanmar — 3.8.7.2.8 Installation of boost hose

A Yanmar service procedure — check it applies to your exact model before use.

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Procedure

1. 8.7.2.9 Measurement of turbine shaft play See the inspection procedure in section 3.8.4.2.2 for the measurement method. If the turbine shaft play does not satisfy the standard, reassembly is necessary since poor assembly or use of a wrong part is conceivable. (1) Turbine shaft play in axial direction
2. Engine Overhaul
3. 8.8 Handling after Disassembly and Reassembly When installing the turbocharger on the engine or handling the turbocharger after installation, strictly observe the instructions given below. Especially pay full attention for preventing foreign matter entrance into the turbocharger.
4. 8.8.1 Instructions for turbocharger installation
5. 8.8.1.1 Lubrication path (1) Add new engine oil through the oil inlet port before installation on the engine, and manually turn the turbine shaft to lubricate the floating and thrust bearings. (2) Flush the oil intet pipe from the engine and outlet pipe, and check for crushed pipe and dirt or foreign matter remaining in the pipes. (3) Connect the pipes securely so as to ensure no oil leak from joints.
6. 8.8.1.2 Intake path (1) Check the intake fine for foreign matter or dirt. (2) Connect securely to prevent any air leak from joints with the intake duct and air cleaner.
7. 8.8.1.3 Exhaust path (1) Check the exhaust system for dirt and foreign matter. (2) Since heat resistant steel nuts and boits are used for the installation, do not use ordinary nuts and bolts for other use. Always apply anti-seizure agent on set nuts and bolts at tightening. (Use heat resistant bolts for the turbine housing.) (3) Connect exhaust pipes securely to prevent gas leak from each pipe joint. 3-94
8. Engine Overhaul
9. 8.9
10. 8.9.1
11. Clogged air cleaner element
12. Blocked air intake port

Source: manual:Yanmar-6LP-DTE-Service.pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.