Rotax MMH-912 Series Maintenance Manual page 38

22 898570
23 n.a.
24 n.a.
25 n.a.
Effectivity 912/914 Series
Edition 1 / Rev. 3
BRP-Powertrain
Maintenance Manual
Screw securing paint
seals screws ................................................................. 20 ml
Cleaning agent
▲ WARNING: Use only approved cleaning agents (e.g. varsol,
etc.) for cleaning metal parts.
Do not use lyebased cold cleaners or degreasing agents.
Do not clean coolant and oil hoses with aggressive solu-
tions. Clean off residues of sealing compound with sealant
remover.
Soak combustion chamber, piston and cylinder head with
cleaning agent and remove combustion residues with a
bronze brush. CASTROL "Clenvex 2000" has proved very
effective. It is a solvent - cold cleaner, free of halogen, on
the basis of selected fuel fractions and is biodegradable.
Never use caustic or corrosive cleaning agents.
Valve lapping paste
This paste, produced by various manufacturers, is a fine
granulate lapping paste for manual lapping of valve seats
and valves. The paste is usually available in 3 different
granulate sizes. Use as per manufacturer's instructions.
MICRONORM abrasive
This abrasive is suitable for local and gradual very fine
treatment of steel parts with rust film (propeller shaft). The
MICRONORM abrasive contains no harmful substances, is
approved by the competent authorities and guarantees
optimum cleaning. The granulates used are of sizes 40 to
60 µ . The achievable surface roughness is between 0.5
and 1 µ , which corresponds to ultrafine machining of sur-
faces.
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page 38
October 01/2010