Mercathode; Power Package Exterior Surfaces - Mercury MerCruiser Service Manual

Maintenance
c
Bravo sterndrive shown
a - Sterndrive
b - Ground washer
c - Ground plate (later model)

MerCathode

If the boat is equipped with a MerCathode system, the system should be tested to ensure that it is providing adequate output to
protect the underwater metal parts on the boat. The test should be made with the boat moored, using a reference electrode and
test meter.
Reference Electrode
Refer to the appropriate Mercury MerCruiser sterndrive service manual for testing procedures.

Power Package Exterior Surfaces

1. Spray the entire power package at recommended intervals with Corrosion Guard. Follow the instructions on the can for
proper application.
Tube Ref No.
Corrosion Guard
120
2. Clean the entire power package. External surfaces that have become bare should be repainted with the recommended
primer and spray paint at recommended intervals.
Description
Mercury Light Gray Primer
Mercury Phantom Black
Page 1C-28
a
b
37513
a
Description
© 2016 Mercury Marine
Ground washer shown inside anode cavity
of Bravo Three gear housing, other models
b
a - U‑joint bellows ground clip
b - Exhaust bellows ground clip
59936
91‑76675T 1
Where Used
Painted surfaces
Painted surfaces
90-8M0099748 eng DECEMBER 2015
37632
similar
Part No.
92-802878 55
Part Number
92‑802878 52
92‑802878Q 1