www.tanaka-usa.com
Service
Manual
Moby XL, SE-803
Engine Repair Cont.
CRANKCASE / ENGINE
When re-assembling the muffler components, be sure that the heat
shield is properly installed with the muffler locator tabs properly
inserted. The heat shield is crucial to the cooling of the engine, and
improper installation can lead to overheating of the engine.
The engine components include the crankcase, crankshaft / connecting
rod, cylinder, piston and piston rings. Further, the crankcase also
contains the main crankshaft support bearings and the crankshaft
seals.
The cylinder is attached to the crankcase with four screws, which are
accessed from the top of the cylinder. With the screws removed, the
cylinder will slide off of the crankcase and piston/rings.
The piston is attached to the connecting rod with a press-fit wrist pin.
Removal of this pin first requires the removal of the piston pin retaining
circlips installed in the side of the piston, at either end of the pin. These
are removed with a pair of needled nose pliers, and are not re-usable.
New spares should be installed upon re-assembly.
Crankcase / Engine cont.
