87MS 461, MS 461-R
12.7 Intake Manifold
A damaged intake manifold can
cause engine running problems,
b 3.7
– Troubleshooting, b 3.6 or
b 3.7
– Remove the shroud, b 6.4
– Remove the carburetor, b 12.4
– Take out the annular buffer
mounting screws and loosen the
tank housing, b 12.9.3
: Remove the washer (1) and
sleeve (2).
: Push the manifold flange (1) out
of the tank housing (2) in the
direction of the cylinder.
: Pull out the tank housing (2) a
little – making sure the wiring
harness is not under tension.
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2
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2
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: Loosen the screw (1) and push
the hose clamp over the manifold
in the direction of the tank
housing.
: Pull the manifold (1) off the intake
stub (arrow).
– Inspect the intake manifold and
replace it if necessary – even
very minor damage can cause
engine running problems, b 3.7
The sealing faces must be in perfect
condition. Always replace
components with damaged sealing
faces.
Installing
– Fit the manifold on the cylinder,
b 6.5
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– Coat the outside of the manifold
flange with STIHL press fluid,
b 15
: To pull the manifold flange (1)
through the intake opening, wind
a piece of string (2) (about 15 cm
long) around the flange and pass
the ends of the string through the
intake opening.
– Press the tank housing against
the manifold and hold it there.
: Grip the ends of the string (2) and
pull the manifold flange (1)
through the opening.
– Remove the string.
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2
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