Cautions In Disassembling And Assembling Components - TOHATSU MFS25 Service Manual

Service Information
7) Cautions in disassembling and
assembling components
(1) Secure outboard motor to dedicated stand firmly.
(2) Take special care not to scratch painted surface or mating
surfaces of cylinder and crankcase.
(3) Replace unreusable parts such as packings, gaskets, O
rings, oil seals, spring pins or split pins with new ones after
they were removed . Replace deformed snap rings with new
ones.
(4) When replacing parts, be sure to use genuine parts. For
fluids such as gear oil, use genuine product.
(5) Be sure to use special tools that are specified, and perform
the works properly.
(6) When reassembling parts, use their mating marks. For parts
without mating marks, simple marking makes reassembling
easier. Use applicable parts list for reference.
(7) Clean individual parts that have been removed, and check
their conditions.
(8) When reassembling parts, take sufficient care also for details
such as fits, repair limits, air tight, clogging of oil holes for
lubrication and greasing, packings, wirings and piping. For
components using many bolts and nuts for assembling, such
as cylinder head and crankcase, tighten all the fasteners
evenly to their specified torques clockwise in two or three
stages, inner ones first and then outer ones. (Reverse the
order when disassembling.)
(9) When installing bearings, face the flat (numbered) side to the
special assembling tool.
(10) When installing oil seals, be careful not to scratch the
surface of the lip that contacts with the shaft, and install them
in correct orientation. Apply recommended grease to the lip
before installation.
(11) When applying liquid packing, take sufficient care for the
thickness and quantity. Excessive application may be oozed
out, adversely affecting interior of the crankcase. Use
adhesive after thoroughly reading the instructions.
(12) When servicing power unit, use of wooden work board
makes the work easier.
1-4
Intake Silencer
4
1
14
23
13
3
12
22
21
LIT
LIT
195
200
ø35mm to 40mm hole
25mm to thick or more , wooded
Power Unit Work Board
7
8
50
25/30 2006