16 Powerhead; Special Servicing Tools, Servicing Aids; Testing Engine For Leaks - Stihl 4180 Series Service Manual

16 Powerhead

14
13
M10x1 (12 Nm / 106 lbf. in.)
16.1

Special Servicing Tools, Servicing Aids

Pump – 0000 850 1300
–
Sealing plate – 0000 855 8106
–
Jaws (profile No. 3.1) – 0000 893 3706
–
Socket, T27x125 – 0812 542 2104
–
Assembly drift – 1108 893 4700
–
Assembly drift – 1110 893 4700
–
Assembly drift – 1114 893 4700
–
Press sleeve – 4112 893 2401
–
Retainer – 4180 890 8600
–
Locking screw – 4282 890 2700
–
Leakage tester – 5910 850 0300
–
Compression tester – 5910 850 2000
–
Flange – 5910 850 4200
–
Torque wrench – 5910 890 0302
–
Installing tool 8 – 5910 890 2208
–
Installing tool 9 – 5910 890 2209
–
Screwdriver, T27x200 – 5910 890 2415
–
Puller – 5910 890 4400
–
STIHL multipurpose grease – 0781 120 1110
–
Dirko HT red sealant – 0783 830 2000
–
Standard commercial solvent-based degreasant
–
containing no chlorinated or halogenated
hydrocarbons
42
11
10
12 5
8
D5x24 (9,0 Nm / 80 lbf. in.)
1
2
5
6
7
8
D5x24 (9,0 Nm / 80 lbf. in.)
16.2

Testing Engine for Leaks

Interactive video "Engine Leakage Test"
Preparations
Remove the shroud, @ 4.2.
N
Remove filter housing and carburetor, @ 10.2.
N
20
22
24
23
Loosen the muffler screws, @ 14.2
N
Slide the sealing plate 0000 855 8106 (20) between
N
the exhaust port and muffler so that it completely fills
the space between the two upper screws on the
muffler.
Tighten down the muffler screws.
N
Push the gasket (21) onto the spacer flange.
N
3
M8x1
(17 Nm / 150 lbf. in.)
4
21
25
Series 4180 Powerhead