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ENGINE
3.9
CRANKSHAFT
STRAIGHTENING
Lubricate the bearings and clamp the crankshaft
securely in the crankshaft alignment fixture. Refer to
the illustrations below.
Crankshaft Alignment Fixture
(PN 2870569)
NOTE:The rod pin position in relation to the dial
indicator position tells you what action is required to
straighten the shaft.
1. To correct a situation like the one shown in the
illustration, strike the shaft at point A with a brass
hammer.
A
B
HIGH .004 (.1mm)
HIGH .004 (.1mm)
SUPPORT CRANKSHAFT
HERE.
2. To correct a situation like the one shown in the
illustration, squeeze the crankshaft at points A.
(Use tool from alignment kit).
AA
HIGH .002 (.05mm)
HIGH .005 (.13mm)
3. If the crank rod pin location is 180_ from the dial
indicator (opposite that shown above), it will be
necessary to spread the crankshaft at position A
as shown in the illustration at right. When
rebuilding and straightening a crankshaft, runout
must be as close to zero as possible.
A
HIGH .002 (.05mm)
HIGH .005 (.13mm)
A
NOTE: Maximum allowable runout is .0024I
ES50PL ENGINE
LUBRICA
TION
Oil Type:
Polaris PS--4 Synthetic (PN 2874414)
Capacity:
Approximately 2.25 U.S. Quarts (2.1L)
Filter:
PN 3084963
Drain Plug / Screen Fitting:
14.8--17 ft. lbs. (20--23 Nm)
(If fitting is removed, follow
oil pump priming procedure).
Oil Pressure Specification:
20 PSI @ 5500 RPM, Polaris PS--4 Synthetic
(Engine Hot)
OIL PRESSURE TEST
1. Remove blind plug on front right oil filter cover.
2. Insert a 1/8 NPT oil pressure gauge adaptor and
attach the gauge.
3. Start engine and allow it to reach operating
temperature, monitoring gauge indicator.
NOTE: Use only Polaris PS 4 Synthetic Engine
Lubricant (PN 2874414).
Oil Pressure at 5500 RPM (Engine Hot):
Standard: 20 PSI
Minimum: 12 PSI
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