24
Repair Manual PS-35
2
M4 x 25
1
6
Seal off the pulse line
6
and bring the cylinder
to top dead center.
Set up an underpressure of max. 0.3 bar.
If the underpressure changes within 20
seconds, it may have the following causes:
• Radial ring leaking
• Crankcase gasket leaking
• Crack in crankcase
• Crack in cylinder
• Spark plug leaking
• Rubber intake on cylinder leaking
• Defective pulse line
Note:
The engine must be removed in order to
localize leaks.
Remove clutch. See Chap. 04.
Remove oil pump (see Chap. 05).
Remove
fl
ywheel. See Chap. 07.
Remove cylinder (see Chap. 08).
Remove crankcase (4 bolts on underside) and
remove it from the engine mount.
Note:
Install cylinder on crankcase again (see
Chap. 08).
Always perform sealing tests with
underpressure!
If a leak is diagnosed, it can be found
using overpressure and detergent or
similar liquid.
11 CYLINDER / PISTON
Vacuum testing
If correct carburetor setting is not possible,
it will be necessary to test a leakage of the
engine.
Remove hood.
Remove the muf
fl
er. See Chap. 04.
Remove carburetor (see chap. 08).
To seal the outlet side, screw on the sealing
plate
4
(Chap. 00 Pos.12) and muf
fl
er gasket
3
.
To seal off the intake side, install the sealing
plate
2
(chap. 00 pos. 11) in the place of the
carburetor.
Connect the over/underpressure pump to the
connection on the sealing plate
1
.
4
3
Содержание PS-35 C
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