Rotax 914 F Maintenance Manual page 262

Designation
nd
2 compression ring (bevel-edged)
height of groove ...................................... 1,27 ÷ 1,29
height of ring ........................................... 1,228 ÷ 1,24
ring / groove clearance ........................... 0,03 ÷ 0,062
ring end gap F ....................................... 0,3
rd
3 ring (oil scraper ring)
height of groove ...................................... 3,01 ÷ 3,03
height of ring ........................................... 2,975 ÷ 2,99
ring / groove clearance ........................... 0,02 ÷ 0,045
ring end gap F ....................................... 0,15 ÷ 0,40
Piston rings, Cyl.2
st
1 compression ring
height of groove ...................................... 1,52 ÷ 1,54
height of ring ........................................... 1,478 ÷ 1,49
ring / groove clearance ........................... 0,03 ÷ 0,062
ring end gap F ....................................... 0,15 ÷ 0,35
nd
2 compression ring (bevel-edged)
height of groove ...................................... 1,27 ÷ 1,29
height of ring ........................................... 1,228 ÷ 1,24
ring / groove clearance ........................... 0,03 ÷ 0,062
ring end gap F ....................................... 0,3
rd
3 ring (oil scraper ring)
height of groove ...................................... 3,01 ÷ 3,03
height of ring ........................................... 2,975 ÷ 2,99
ring / groove clearance ........................... 0,02 ÷ 0,045
ring end gap F ....................................... 0,15 ÷ 0,40
Piston rings, Cyl. 3
1 st compression ring
height of groove ...................................... 1,52 ÷ 1,54
height of ring ........................................... 1,478 ÷ 1,49
ring / groove clearance ........................... 0,03 ÷ 0,062
ring end gap F ....................................... 0,15 ÷ 0,35
nd
2 compression ring (bevel-edged)
height of groove ...................................... 1,27 ÷ 1,29
height of ring ........................................... 1,228 ÷ 1,24
ring / groove clearance ........................... 0,03 ÷ 0,062
ring end gap F ....................................... 0,3
rd
3 ring (oil scraper ring)
height of groove ...................................... 3,01 ÷ 3,03
height of ring ........................................... 2,975 ÷ 2,99
ring / groove clearance ........................... 0,02 ÷ 0,045
ring end gap F ....................................... 0,15 ÷ 0,40
Piston rings, Cyl. 4
1 st compression ring
height of groove ...................................... 1,52 ÷ 1,54
height of ring ........................................... 1,478 ÷ 1,49
ring / groove clearance ........................... 0,03 ÷ 0,062
ring end gap F ....................................... 0,15 ÷ 0,35
Date
Page
1997 02 01
262
mm
÷ 0,5
÷ 0,5
÷ 0,5
Main
914 F
new
(in.)
(0,050÷0,051) .............. 1,35 (0,053) ........................
(0,048÷0,049) .............. 1,20 (0,047) ........................
(0,001÷0,002) .............. 0,1
(0,011÷0,02) ................ 1,0
(0,118 ÷0,119) ............ 3,1
(0,117 ÷0,118) ............ 2,95 (0,116) ........................
(0,0008÷0,002) ............ 0,1
(0,006 ÷0,016) ............ 1,0
(0,059÷0,061) .............. 1,6
(0,058÷0,059) .............. 1,45 (0,057) ........................
(0,001÷0,002) .............. 0,1
(0,006÷0,014) .............. 1,0
(0,050÷0,051) .............. 1,35 (0,053) ........................
(0,048÷0,049) .............. 1,20 (0,047) ........................
(0,001÷0,002) .............. 0,1
(0,011÷0,02) ................ 1,0
(0,118 ÷0,119) ............ 3,1
(0,117 ÷0,118) ............ 2,95 (0,116) ........................
(0,0008÷0,002) ............ 0,1
(0,006 ÷0,016) ............ 1,0
(0,059÷0,061) .............. 1,6
(0,058÷0,059) .............. 1,45 (0,057) ........................
(0,001÷0,002) .............. 0,1
(0,006÷0,014) .............. 1,0
(0,050÷0,051) .............. 1,35 (0,053) ........................
(0,048÷0,049) .............. 1,20 (0,047) ........................
(0,001÷0,002) .............. 0,1
(0,011÷0,02) ................ 1,0
(0,118 ÷0,119) ............ 3,1
(0,117 ÷0,118) ............ 2,95 (0,116) ........................
(0,0008÷0,002) ............ 0,1
(0,006 ÷0,016) ............ 1,0
(0,059÷0,061) .............. 1,6
(0,058÷0,059) .............. 1,45 (0,057) ........................
(0,001÷0,002) .............. 0,1
(0,006÷0,014) .............. 1,0
Reference
wear limit actual dim.
mm (in.) int. / exh.
(0,004) ........................
(0,04) ..........................
(0,122) ........................
(0,004) ........................
(0,04) ..........................
(0,063) ........................
(0,004) ........................
(0,04) ..........................
(0,004) ........................
(0,04) ..........................
(0,122) ........................
(0,004) ........................
(0,04) ..........................
(0,063) ........................
(0,004) ........................
(0,04) ..........................
(0,004) ........................
(0,04) ..........................
(0,122) ........................
(0,004) ........................
(0,04) ..........................
(0,063) ........................
(0,004) ........................
(0,04) ..........................
Modification no.
- 0 -