Impeller; Impeller And Stator Installation - Mercury 200 OptiMax Jet Drive Service Manual

g. Replace the stator seal if required. Use the bearing puller tool to remove the seal. Use the oil seal installation tool to
install the new stator seal.
Bearing Puller Assembly
Oil Seal Installation Tool

Impeller

1. Place the impeller in the wear ring bore and push to one side.
2. Measure the clearance between impeller blades and wear ring with a feeler gauge. If clearance is over 2.54 mm (0.100 in.),
replace impeller and wear ring.
NOTE: Impeller wear usually accounts for 75% of the wear. Reducing the clearance can improve both top speed and
acceleration performance.
b
c
Impeller Component Dimensions
Wear ring bore diameter
Impeller outside diameter
Clearance between wear ring and impeller
3. Inspect the leading edges of the impeller for nicks and damage. The leading edges should be sharpened to 0.51 mm
(0.020 in.) on the outer half of the leading edge for optimum performance. Dull leading edges can increase cavitation during
initial acceleration.

Impeller and Stator Installation

1. Lubricate the splines of the impeller shaft with Special Lubricant 101.
90-8M0050731 MAY 2011
a
b
a
45259
a - Puller 91‑83165M
b - Stator seal
45261
91‑ 83165T
91‑850830
a - Clearance
b - Impeller
c - Wear ring
184.73–184.98 mm) (7.273–7.283 in.)
183.52–183.77 mm (7.225–7.235 in.)
0.96–1.47 mm (0.038–0.058 in.)
Pump Unit
Page 5A-25