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Mercury jet 20 User Manual

Mercury jet 20
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75
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MAINTENANCE
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.03 in. (.8mm)
a
omn1
Impeller Clearance Adjustment
The impeller should be adjusted so there is approximately .03 in. (.8mm) clearance
between the impeller edge and liner. Operating your jet drive in waters that contain
sand and gravel can cause wear to the impeller blades, and the clearance will start
to exceed .03 in. (.8mm). As the blades wear, shims (a) located in the stack outside
of the impeller can be transferred behind the impeller. This will move the impeller
further down into the tapered liner to reduce the clearance.
Check the impeller clearance by sliding a feeler gauge through the intake grate and
measure the clearance between the impeller edge and liner. If adjustment is
required, refer to Impeller Removal and Installation in this Maintenance Section.

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Mercury jet 20 Specifications

General IconGeneral
BrandMercury
Modeljet 20
CategoryOutboard Motor
LanguageEnglish

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