WEICHAI WD10 Service Manual - page 99
Service Manual for WD10 Diesel Engine
89
463 Disassembly, Inspection, Maintenance and Assembly of Exhaust Pipe
4631 Exploded View of Intake Pipe
Heat shield bolt
Front exhaust pipe
Exhaust pipe bolt
Rear
exhaust pipe
Exhaust pipe gasket
Exhaust pipe seal ring
Heat shield bolt
Exhaust pipe
heat shield bolt
Exhaust pipe heat shield bolt
Fig. 4-52 Exploded view of exhaust pipe
4632 Steps to Disassemble Exhaust Pipe
(1) Screw off exhaust pipe heat shield bolts orderly and take down the shield;
(2) Remove exhaust pipe fastening bolts, take down front and rear exhaust pipes and gaskets.
(3) Separate front and rear exhaust pipes, remove front exhaust pipe adapter and seal rings.
4633 Inspection and Maintenance of Exhaust Pipe
(1) Check whether there is crack on exhaust pipe, whether the flange is deformed, replace the pipe
if necessary.
(2) Check whether there is air leakage on exhaust pipe flange, replace the gasket if necessary.
(3) Check exhaust pipe gasket for deformation and dilaceration, replace it if necessary.
(4) Check exhaust pipe seal rings for sintering, rust and carbon deposit, replace it if necessary.
4634 Steps to Assemble Exhaust Pipe
Assembling steps are contrary to disassembling ones. Note the following points during assembly:
(1) Pay attention not to scratch exhaust pipe adapter when assembling the seal rings, the openings
of four seal rings should staggered for 90°.