WEICHAI WD10 Service Manual - page 57
Service Manual for WD10 Diesel Engine
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2) Rub-up cylinder sleeve inner wall and apply clean engine oil on the wall; Clean up upper
surface of cylinder block, and place cylinder gaskets correctly by aligning the holes;
3) Check and make sure the holes on cylinder cover gasket are correctly aligned to holes on
cylinder block.
(3) Install valve rod seal cartridges
Spring
Fig. 4-12 Valve rod seal cartridge
1) Valve rod seal cartridges are disposable, and should be replaced once removed;
2) Check valve rod seal cartridge for flaws, check whether valve rod seal cartridge spring is in
good condition;
3) Install valve rod seal cartridge on valve guide pipe;
4) Apply lubricating oil on valve rod seal cartridge lip;
5) Use dedicated assembling tools and rubber hammer to assemble valve rod seal cartridge
assembly.
Dedicated assembling tool
Valve rod guide pipe
Valve rod seal cartridge
Cylinder cover
Fig. 4-13 Assembling of valve rod seal cartridge
(4) Assemble cylinder cover
1) Clean up the cylinder cover carefully, make sure there is no dust, debris and sand, and
rub-up undersurface of cylinder cover;