SeaDoo SP Manual de Serviço descarregar pdf (Página 72)

Section 04 ENGINE

Sub-Section 03 (BOTTOM END)

04-03-5

1. TDC gauge

2. Degree wheel

3. Hand tighten nut

4. Needle pointer

– Remove TDC gauge and install on PTO side.

– Bring PTO piston at Top Dead Center.

Interval between cylinders must be exactly 180°

therefore, needle pointer must indicate 180° on

degree wheel (360° - 180° = 180°).

Any other reading indicates a misaligned crank-

shaft.

Crankshaft Alignment at Connecting

Rod Journal

Such misalignment may cause a crankshaft hard

to be manually turned. Verification can be done by

measuring deflection each end of crankshaft. Re-

fer to Inspection paragraph.

If deflection is found greater than specified toler-

ance, this indicates worn bearing(s), bent and / or

disaligned crankshaft.

DISASSEMBLY

Engine has to be removed from watercraft to

open bottom end. Refer to ENGINE 04-01.

1, Seal

If crankshaft end seal(s) has / have to be replaced,

bottom end must be opened (except for the MAG

side seal on the 787 engine, which is mounted on

the ignition housing).

3, Crankcase

Remove the following parts :

– Engine support (except for the 787 engine).

– PTO flywheel. Refer to PROPULSION SYSTEM

09-02.

NOTE : PTO side flywheel must be re-

moved prior removing MAG side flywheel.

– Magneto flywheel. Refer to ELECTRICAL SYS-

TEM 08-01.

– Starter.

– Ignition housing.

1. Separating ignition housing / armature plate from cranckcase

– Rotary valve cover and valve.

– Crankcase retaining screws.

Insert screwdrivers between crankcase lugs and

pry to separate halves being careful not to dam-

age precision machined surfaces.

F01D4IA

F01D4JA

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