Hardness Test Method; Valve Guide Check - Rotax 915 i A series Maintenance Manual

HARDNESS TEST METHOD

ATTENTION
If the engine has been overheated, a hardness
test of the cylinder head is necessary.
See Maintenance Manual Line for the en-
gine type 915 i A Series .
The hardness test takes place at measurement
point CH08.
CH08: HB2,5/62,5 DIN EN ISO 6506-2
ATTENTION
The results of the hardness test must be noted
in Chapter 72-30-00, subsection: Wear limits.
See Chapter 72-30-00 section
Figure 8.20
Cylinder head
1
NOTE
If the rocker arm shaft bearing (CH05) is worn, it
can be re-machined to a certain extent. The cyl-
inder head must be sent to an authorised RO-
TAX® overhaul facility.
Effectivity: 915 i A Series
Edition 0/Rev. 0
BRP-Rotax
MAINTENANCE MANUAL HEAVY
Wear limits.
Figure 8.21

VALVE GUIDE CHECK

ATTENTION
If the wear limit has been reached, the valve
guide must be replaced.
Step Procedure
1 Check the valve guide visually for dam-
age and wear.
2 Inspect the inner diameter of the valve
guide.
Figure 8.22
06448
72–30–00
Page 17
August 01 2018