Rotax 914 series Maintenance Manual

BRP-Rotax
Maintenance Manual
72-00-00
page 102
May 01/2007
Effectivity 912/914 Series
Edition 1 / Rev. 0
d02622
Piston
Cyl. 1 Cyl. 2 Cyl. 3 Cyl. 4
Pison pin clearance
in piston pin bore
PI02/
PI03
0,006
0,0002
0,013
0,0005
0,050
0,0020
0,032
0,0012
actual
renewed
Piston pin clearance
in con rod
CS06/
PI03
0,015
0,0006
0,035
0,0014
0,050
0,0020
0,043
0,0017
actual
renewed
Piston ring groove
clearance rectangu-
lar ring 1
PI04
0,030
0,0012
0,062
0,0024
0,100
0,0039
0,081
0,0032
actual
renewed
Piston ring groove
clearance tapered
compression ring 2
PI05
0,030
0,0012
0,062
0,0024
0,100
0,0039
0,081
0,0032
actual
renewed
Piston ring groove
clearance oil scraper
ring 3
PI06
0,020
0,0008
0,055
0,0022
0,100
0,0039
0,078
0,0031
actual
renewed
Piston ring end gap
rectangular ring 1
PI07
0,15
0,0059
0,35
0,0138
1,00
0,0394
0,68
0,0266
actual
renewed
Piston ring end gap
tapered compres-
sion ring 2
PI08
0,300
0,0118
0,500
0,0197
1,000
0,0394
0,750
0,0295
actual
renewed
Piston ring end gap
oil scraper ring 3
PI09
0,15
0,0059
0,40
0,0157
1,00
0,0394
0,70
0,0276
actual
renewed
Description
Code
Reading new
wear
limit
wear
limit
Readings
min max 100% 50%
07221

Rotax 914 series Specifications

General

Bore	79.5 mm
Stroke	61 mm
Compression Ratio	9.0:1
Cooling System	Liquid-cooled cylinder heads, air-cooled cylinders
Redline	5800 rpm
Engine Type	4-cylinder, 4-stroke
Fuel Type	Avgas 100LL
Oil System	Dry sump
Fuel System	fuel injection
TBO (Time Between Overhauls)	2000 hours
Displacement	1.211 liters (1211 cc)
Power Output	84.6 kW (115 hp) at 5, 800 rpm