Removing And Installing The Engine - Stihl MS 290 Manual

6.5 Removing and Installing
the Engine
Always check and, if necessary,
repair the fuel system, carburetor,
air filter and ignition system before
looking for faults on the engine.
– Remove the handle housing,
b 9.2
– Remove the shroud, b 6.4
– Remove the oil pump, b 10.4.1
– Remove the muffler, b 6.1
– Remove the flywheel, b 7.3
1
: Take out the screw (1).
: Remove the ground wires
(arrows).
: Take out the screws (arrows).
30
– Set piston to bottom dead center.
: Lift cylinder with crankshaft
upwards and off the engine pan.
– Remove cylinder sideways from
the engine housing.
– For other operations see b 6.5.1
Install in the reverse sequence.
– Tighten down the engine pan/
cylinder mounting screws in
alternate pattern, b 3.5
– Tighten down the ground wire
fastening screw firmly, b 3.5
If the engine pan is damaged, it
must be replaced before installing
the cylinder. Perform the following
operations to replace the engine
pan:
1
– Unscrew the collar stud, b 5.4
: Remove the engine pan (1).
Install in the reverse sequence.
– Fit the engine pan in the engine
housing.
– Coat the thread of the collar stud
with Loctite, b 13.
– Insert and tighten down the collar
stud firmly, b 3.5
– For other operations see b 6.5.1
MS 290, MS 310, MS 390