4-48 - POWERHEAD 90-830234R3 DECEMBER 1997
End Cap
Clean thoroughly, including seal and O-ring seats; re-
move perfect seal residue and clean cap-to-head
mating surfaces.
Apply a thin bead of Loctite 271 to outer face on end
cap oil seal. Wipe off excess Loctite
R after installing.
Using suitable mandrel, press oil seal into cap until
fully seated. Remove any excess Loctite.
NOTE: Lip of seal goes in (towards flywheel).
Lubricate oil seal lip with 2-4-C w/Teflon.
Lubricate O-ring seal with 2-4-C w/Teflon; install in
groove.
a
b
c
d
7
Loctite 271 (92-809820)
95
2-4-C With Teflon (92-825407A12)
95
95
7
a - Outer Face
b - O-Ring
c - Seal Lip
d - Mating Surface
Any GREASE used for bearings INSIDE the Pow-
erhead MUST BE gasoline soluble. Use only
Quicksilver 2-4-C w/Teflon (92-825407A12). If
other lubricants are used inside the Powerhead,
damage to engine may occur.
Assembling Rod to Piston
Place clean needle bearings on a clean sheet of
paper and lubricate with Quicksilver 2-4-C w/Teflon
(92-825407A12).
NOTE: There are 29 needle bearings per piston.
Never intermix new needle bearings with used
needle bearings at the same connecting rod end.
Never intermix needle bearings on one connect-
ing rod with those of another connecting rod.
Should one (or more) piston pin needle bearing
of a connecting rod require replacement (or
should one or more be lost), replace all of that
connecting rod’s piston pin needle bearings.
Place sleeve, which is part of Piston Pin Tool
(91-74607A1), into connecting rod and install needle
bearing around sleeve, as shown.
b
a
95
2-4-C With Teflon (92-825407A12)
95
19537
a - Needle Bearings (29)
b - Sleeve [From Piston Pin Tool (91-74607A2)]
Place locating washers on connecting rod; keeping
locating washers in place, carefully place piston over
end of rod. Use disassembly marks for matching rod
to piston and direction of insertion (which side of rod
is “UP”).
1
1
a
b
51083
a - Scribed Identification Number
b - Locating Washer
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