4A-2790-13645--2 495 POWERHEAD
Any GREASE used for bearings INSIDE the
Powerhead MUST BE gasoline soluble. Use only
Quicksilver Needle Bearing Assembly Lubricant
(92-42649A-1) or 2-4-C w/Teflon (92-825407A12). If
other lubricants are used inside the Powerhead,
damage to engine may occur.
CAUTION
Assembling Rod to Piston
Place clean needle bearings on a clean sheet of
paper and lubricate with Quicksilver Needle Bearing
Lubricant (92-42649A1) or 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
connecting 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.
CAUTION
Place sleeve, which is part of Piston Pin Tool
(91-74607A1), into connecting rod and install needle
bearing around sleeve, as shown.
19537
a
b
a - Needle Bearings (29)
b - Sleeve [From Piston Pin Tool (91-74607A2)]
Place locating washers on connecting rod; keeping lo-
cating washers in place, carefully place piston over end
of rod. Use disassembly marks for matching rod to pis-
ton and direction of insertion (which side of rod is “UP”).
51083
b
a
1
1
a - Scribed Identification Number
b - Locating Washer
Insert piston pin tool through piston in the direction
shown, pushing out sleeve.
51080
a
b
a - Sleeve
b - Piston Pin Tool (91-74607A2)
Place piston pin over end of tool, and tap into position
(driving tool out other side).
a
b
51086
a - Piston Pin
b - Piston Pin Tool
WARNING
Eye protection must be worn while installing
piston pin lockrings.
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