Installation Of The Crankcase - PGO Tigra AF-125BAE Service Manual

Installation of the crankcase

 Method (1)
Install the bearing and the engine oil pump sprocket on the
crankshaft first.
Clean the washer first and the crankcase; install all parts into the
crankcase in a reverse order.
1. Horizontally place the case on the workbench.
2. Install the inner chain.
3. Cautiously place the crankshaft into the case.
4. Install the washer and then the right crankcase cover.
5. Install the crankshaft with a specific fixture; fix set screws for the
fixture on the crankshaft.
6. Reversely screw and fix the set nuts.
7. Tighten set nuts on the fixture.
8. Fix the fixture sleeve and screw nuts. (Use the fixture to press the
crankshaft.)
9. Screw nuts and check if the contacting surface of the case is
sealed.
10. Remove the fixture.
Perform the previous steps by placing a wooden pad under the case
and using a press in the event of no specific fixture employed.
Do not use any hammer to strike the case; prevent the shaft hole or
the crankshaft from damage.
In view of tight fit of the engine's assembled right bearing housing,
please avoid striking the case during installation.
Crankcase & Crankshaft 9
64