5. Inspection and servicing of basic engine parts
177
5.1.4 Replacement of cup plugs
Step
No.
Description Procedure Tool of material used
1 Clean and remove glue from the hole into which
the cap plug is to be driven.
(Remove scale and sealing material previously
applied.)
Screw driver or saw
blade
Thinner
2 Remove grease from the cap plug. Visually check the nick
around the plug.
Thinner
3 Apply Threebond No.4 to the seat surface where
the plug is to be driven in.
Apply over the whole
outside of the plug.
Threebond No.4
4 Insert the plug into the hole. Insert the plug so that it
sits correctly.
5 Place a driving tool on the cap plug and drive it in
using a hammer.
*Using the special tool, drive the cup plug so that
the edge of the plug is 2 mm (0.0787 in) below
the cylinder surface.
Drive in the plug parallel
to the seating surface.
•Driving tool
•Hammer
Remove foreign
materials with a
screw driver
or saw blade.
001490-01E
A
001491-01E
mm
A
2-3
AB
D
d
001492-02X
mm
Plug dia. d D
ø12 ø11.9-12.0 ø20
ø25 ø24.9-25.0 ø35
ø30 ø29.9-30.0 ø40
ø45 ø44.9-45.0 ø55
mm
AB
3100
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