BRP-Rotax
MAINTENANCE MANUAL LINE
Additional
materials
ATTENTION
Use only the specified or technically equivalent materials for all maintenance
work.
ATTENTION
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 roughness/pitting which does allow
as a consequence the adhesion of fuel residues. These deposits are then in-
volved in a chemical reaction (especially of the sulfur and lead content of AV-
GAS) with the valve material. This effect may cause hot-gas corrosion on the
affected parts.
Effectivity: 912 Series
Rev. 0
05–00–00
Page 9
January 01 2020
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