3.10
ENGINE
Crankshaft Straightening
Lubricate the bearings and clamp the crankshaft securely in the
crankshaft alignment fixture. Refer to the illustrations below.
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.
2. To correct a situation like the one shown in the illustration,
squeeze the crankshaft at points A. (Use tool from
alignment kit).
3. If the crank rod pin location is 180
o
from the dial indicator
(opposite that shown), it will be necessary to spread the
crankshaft at position A as shown in the illustration below.
When rebuilding and straightening a crankshaft, runout
must be as close to zero as possible.
NOTE: Maximum allowable runout is .0024”.
ES50PL Engine Lubrication
Oil Type:
Polaris PS-4 Synthetic (PN 2874414)
Capacity:
Approximately 2.25 U.S. Quarts (2.1L)
Filter:
(PN 3088036)
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).
Crankshaft Alignment Fixture
(PN 2870569)
HIGH .004 (.1 mm)
HIGH .004 (.1 mm)
A
B
SUPPORT CRANKSHAFT HERE
HIGH .002 (.05 mm)
HIGH .005 (.13 mm)
AA
Oil Pressure at 5500 RPM (Engine Hot):
Standard: 20 PSI
Minimum: 12 PSI
AA
HIGH .002 (.05 mm)
HIGH .005 (.13 mm)
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