Rotax 915 i A SERIES Maintenance Manual page 40

No.
4
5
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 grass which does allow as a conse-
chemical reaction (especially of the sulfur and lead content of AVGAS) with the
05–00–00
Page 10
December 01 2017
MAINTENANCE MANUAL
part no.
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 avail-
able in 3 different granulate size. Use as per manu-
facturers instructions.
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 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 achiev-
able surface roughness is between 0.5 to 1μ, which
corresponds to ultrafine machining of surfaces.
quence the adhesion of fuel residues. These deposits are then involved in a
valve material. This effect may cause hot-gas corrosion on the affected parts.
BRP-Rotax
Description, Application
ATTENTION
Qty.
AR
AR
Effectivity: 915 i A Series
Edition 0/Rev. 0