Section 04 ENGINE
Subsection 06 (BOTTOM END)
04-06-6 SMR2000-047_04_06A.FM
Counterbalance Shaft
Use a press to remove counterweights no. 16 and
bearings no. 15.
CAUTION: There is no woodruff key to position
the counterweights. An index mark must be
traced to retain the proper position of the coun-
terweight.
1. Trace an index mark
Remove seals no. 17.
Remove bearing no. 31 and washer no. 32.
Use a press to remove gear no. 14.
CLEANING
Discard all oil seals, gaskets, O-rings and sealing
rings.
Clean oil passages and make sure they are not
clogged.
Clean all metal components in a solvent.
Remove old Loctite from crankcase mating surfac-
es with chisel gasket remover (P/N 413 708 500).
DI Models
Crankcase mating surfaces are best cleaned using
a combination of the chisel gasket remover (P/N
413 708 500) and a brass brush. Brush a first pass
in one direction then make the final brushing per-
pendicularly (90°) to the first pass cross (hatch).
Finish the cleaning with acetone.
CAUTION: Ensure to clean compressor lubrica-
tion nipple.
All Models
CAUTION: Be careful not to spray cleaner on
the painted surface of the engine.
CAUTION: Never use a sharp object to scrape
away old sealant as score marks incurred are
detrimental to crankcase sealing.
INSPECTION
Assembled Engine
The following checks can be performed with en-
gine in watercraft without overhauling engine.
Crankshaft Alignment at Center Main
Journal
Since it is an assembled crankshaft it can become
misaligned or deflected. Crankshaft can be twist-
ed on center main journal, changing timing of one
cylinder in relation with the other.
1. Main journal alignment here
To accurately check if crankshaft is twisted on cen-
ter main journal, proceed as follows:
– Remove magneto housing cover.
– Remove flywheel nut and magneto rotor. Refer
to MAGNETO SYSTEM for procedures.
– Install Bombardier degree wheel (P/N 295 000
007) on crankshaft end. Hand-tighten nut only.
– Remove both spark plugs.
– Install a TDC gauge in spark plug hole on MAG
side.
– Bring MAG piston at Top Dead Center.
– As a needle pointer, secure a wire with a cover
screw and a washer.
– Rotate degree wheel (NOT crankshaft) so that
needle pointer reads 360°.
F01D1NA
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