BRP-Rotax
MAINTENANCE MANUAL LINE
No. Part no. Description, application
Qty.
6
n.a.
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 dif-
ferent granulate sizes. Use as per manufacturers
instructions.
AR
7
n.a.
Compressed air blasting using a solid blasting
agent
This method is suitable for local and gradual very fine
treatment of steel parts with rust film (propeller shaft).
The Compressed air blasting contains no harmful sub-
stances, 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 ultra fine
machining of surfaces.
AR
NOTICE
Exhaust valves and intake valves may NOT undergo a compressed air blasting
treatment with solid blasting, strong abrasive material. Due to this surface treat-
ment one does gain a microscopic surface which does allow as a consequence
the adhesion of fuel residues. These deposits are then involved in a chemical re-
action (especially of the sulfur and lead content of AVGAS) with the valve materi-
al. This effect may cause hot-gas corrosion on the affected parts.
Effectivity: 916 i A / C24
Edition 0/Rev. 1
05–00–00
Page 11
December 01 2023
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