3 Seat ring for the inlet valve:
The seat angle of the inlet
valve seat ring is 20° with a tolerance of -0.30°- -0.10°. The seat
can be ground until the outer seat diameter is 113 mm; after
that, the ring must be replaced by a new one.
4 Seat ring for the exhaust valve:
The seat angle of the ex-
haust valve seat ring is 40° with a tolerance of +0.20°-0°. The
seat can be ground until the outer diameter is 110 mm; after
that, the ring must be replaced by a new one.
Note!
After grinding a light lapping is recommended to provide
contact between valve and seat with marking colour.
12.3.6 Change of seat ring
12.3.6.1 Removal of the old ring
The exhaust seat ring can most conveniently be removed hydrau-
lically by using tool 800110 which can be ordered from the engine
manufacturer. In case the special tool is not available a scrapped
valve can be used.
1 Fit a scrapped valve to the seat
and weld it to the seat by
means of electric beam welding. Preferably the valve disc should
be machined to a diameter 95-100 mm to get a better welding.
2 Press or knock out the ring
but be careful not to damage
the valve guide.
12.3.6.2 Fitting a new inlet valve seat ring
1 Clean the cylinder head bores carefully
by grinding
gently with a grit 400 or finer emery cloth. After grinding the
surface must be cleaned with Loctite 7063 Cleaning spray.
2 Check the bore diameter
in the cylinder head, see sec-
tion 06.2.
3 The ring can be assembled
by freezing in with liquid ni-
trogen of -190°C, the cylinder head temperature being min.
20°C, or by pressing in with a guided arbor. A special tool
800148 is also available.
4 Check the eccentricity
of the sealing face in relation to
the valve guide, and if it exceeds 0.1 mm, the seat surface must
be ground in with a seat grinding machine. A special tool
2V12T0747 is also available for checking the eccentricity. This
tool can be ordered from the engine manufacturer.
12
Cylinder Head with Valves
32-200646-01
12 - 10
WÄRTSILÄ 32
Содержание VASA 6L32
Страница 4: ......
Страница 18: ...Appendix B Welding Precautions 200640 00 6...
Страница 26: ...01 Main Data Operating Data and General Design 32 200634 01 01 8 W RTSIL 32...
Страница 60: ...Appendix A Environmental Hazards 200507 02A 10...
Страница 68: ...Page 7 7 Document No 4V92A0645 Rev j...
Страница 84: ...03 Start Stop and Operation 32 200402 04 03 12 W RTSIL 32...
Страница 98: ...04 Maintenance Schedule 32 200623 01 04 14 W RTSIL 32...
Страница 154: ...07 Tightening Torques and Use of Hydraulic Tools 32 200643 01 07 30 W RTSIL 32...
Страница 162: ...08 Operating Troubles Emergency Operation 32 200402 01 08 8 W RTSIL 32...
Страница 164: ...Specific Installation Data 2005 01 09 2...
Страница 178: ...10 Engine Block with Bearings Oil Sump and Cylinder Liner 32 200150 10 14 W RTSIL 32 34SG...
Страница 216: ...Appendix A Testing of cylinder tightness 32 200142 A 4 W rtsil 20 32 34...
Страница 226: ...13 Camshaft Driving Gear 32 200546 02 13 10 W RTSIL 32...
Страница 253: ...U tube manometer Fig 15 12 401508200050 32 200549 10 Turbocharging and Air Cooling 15 W RTSIL 32 15 19...
Страница 254: ...15 Turbocharging and Air Cooling 32 200549 10 15 20 W RTSIL 32...
Страница 274: ...16 Injection System 32 200627 01 16 20 W RTSIL 32...
Страница 280: ...Fuel System 32 200508 07 17 6 W RTSIL 32...
Страница 314: ...19 Cooling Water System 32 200050 19 14 W RTSIL 32...
Страница 394: ...23 Instrumentation and Automation 32 200115 II 23 60 W RTSIL 32...