Reassembly Procedure; Preparation For Reassembly; Reassembly - Yanmar 3TNV Series Service Manual

8. Turbochager

8.6 Reassembly Procedure

8.6.1 Preparation for reassembly

1) Prepare general tools, special tools, liquid gasket
(Three Bond No.1207) and Locktite No.242
before reassembling the turbocharger.
2) Always replace the following parts with new ones:
Turbine side seal ring 1pc.
Compressor side seal ring(large) 1pc.
Compressor side seal ring(small) 1pc.
M3 machine screws 3pcs.
M3 machine screws 4pcs.

8.6.2 Reassembly

(1) Floating bearing installation
1) Use the snap ring pliers and install inner circlip
16 on bearing housing 15.
2) Install floating bearing 5 in bearing housing 15.
3) Use the snap ring pliers and install outer circlip
16 on bearing housing 15.
Note:
1) The circlip joint shall be positioned as shown in
the figure at right above.
The rounded side of the circlip shall face the
bearing.
2) Apply lubricating oil on the floating bearing
before reassembly.
(2) Turbine shaft installation
1) Fit the seal ring onto turbine shaft 1.
2) Install heat insulating plate 20 on the turbine side
of bearing housing 15.
3) Apply lubricating oil on the journal portion of the
turbine shaft and insert the shaft from the turbine
side of bearing housing 15.
Note: Carefully operate so as not to damage the
floating bearing by the turbine shaft.
The seal ring joint shall be positioned on the
lubricating oil inlet side after centering with
the turbine shaft.
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