INSTALLATION
MANUAL
Section 1: MECHANICAL INSTALLATION
1.5.5 Installation of Seakeeper
1) Lower Seakeeper into position onto the hull
foundation beams and align over drilled holes.
Apply a small bead of marine sealant (e.g., SILI-
THANE 803 or equivalent) between mating
surfaces of Seakeeper frame and hull structure to
prevent moisture wicking into bolt holes.
a. For dissimilar metal foundations
locate and position 4 isolation gaskets
onto foundation beams and apply a
small bead of marine sealant (e.g.,
SILI-THANE 803 or equivalent)
between both mating surfaces of each
isolation gasket where it contacts the
beam and the Seakeeper.
2) Install Mounting Bolts:
a. For Blind-Hole installations (Seakeeper Kit #90642), install the Seakeeper
supplied Grade 10.9, M14-2.0 x 85 mm fasteners or alternative Grade 10.9, M14-
2.0 bolts to maintain a minimum thread engagement of .84 in (21 mm). Apply a
moderate coat of marine anti-seize (e.g., SAF-T-EZE nickel grade anti-seize, SBT-
4N or equivalent) to the threads of each bolt and include a small bead of marine
grade sealant (e.g., SILI-THANE 803 or equivalent) under each bolt head and
washer before installation.
b. For Through-Bolt installations (Seakeeper Kit #90643), install the Seakeeper
supplied Grade 10.9, M14-2.0 x 100 mm fasteners or alternative Grade 10.9, M14-
2.0 bolts to maintain a minimum of 2 threads protruding past nut. Apply a
moderate coat of marine anti-seize (e.g., SAF-T-EZE nickel grade anti-seize, SBT-
4N or equivalent) to the threads of each bolt and include a small bead of marine
grade sealant (e.g., SILI-THANE 803 or equivalent) under each bolt head and
washer before installation.
3) Torque all fasteners to 100 ft-lbs
(136 N-m).
a. New bolts, matching the
Seakeeper specification,
must be used for each
installation and
reinstallation that meet the
requirements listed above.
4) Proceed to electrical and cooling
portion of the installation.