WEICHAI WD10 Service Manual - page 50
Service Manual for WD10 Diesel Engine
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4233 Inspection and Maintenance of Water Pipe
(1) Check whether there is water leakage trace on the pipe before disassembling; check the pipe for
damage like crack and corrosion, a cracked pipe should be replaced, for corrosion that may
affect reliability of the pipe, the cause should be analyzed and corroded pipe should be
replaced.
(2) If there is water leakage in pipe joint, try to replace the joint with new one and tighten it, and
check whether the problem is still exist; if connecting thread is damaged, then the pipe should
be replaced.
4234 Steps to Assemble Water Outlet Pipe
(1) It is recommended to take intake pipe gasket as disposable part and replace it during
maintenance;
(2) Clean up water outlet pipe joint surface and install it on cylinder cover, fasten the pipe with
bolts;
(3) Tighten the fastening bolts;
(4) Tighten the fixing bolt of high pressure fuel pipe clamp;
(5) Install intake pipe, refer to 46 Intake and Exhaust System for details;
(6) Connect sensor wiring harness to water outlet pipe;