Rotax engine torque specifications, Rotax cylinder head torque specs,
Rotax aircraft engine bolt torque specs.
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Torque Specifications for Rotax engines.
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| It is very important that if you are
rebuilding or repairing a Rotax aircraft engine that the
engine bolts and nuts be properly torqued when reassembled. |
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ITEM |
BOLT/NUT
SIZE |
NM |
INCH
LBS |
| Crankcase screws, 532/582/618 |
8mm |
24 |
210 |
| Crankcase screws, 277/377/447/503 |
8mm |
22 |
195 |
| Crankcase or screws |
6mm |
10 |
90 |
| Crankcase nuts (or screws) |
10mm |
38 |
335 |
| Crankcase studs, 532/582/618 |
10mm |
12 |
105 |
| Crankcase studs, 277/377/447/503 |
10mm |
10 |
90 |
| Cylinder hex collar screws |
8mm |
24 |
210 |
| Cylinder head nuts |
8mm |
7 |
60 |
| Cylinder head studs |
8mm |
22 |
195 |
| Magneto housing nut, 277/377/447/503 |
22mmx1.5 |
90 |
800 |
| Magneto housing nut, 532/582/618 |
22mmx1.5 |
95 |
840 |
| Fan nut |
16mmx1.5 |
60 |
530 |
| Allen screws for fan housing |
6mm |
10 |
90 |
| Allen screws for stator plate |
5mm |
6 |
55 |
| Taptite screws for trigger coils |
5mm |
6 |
55 |
| Allen screw for starting pulley |
8mm |
22 |
195 |
| Hex screws for rewind starter |
6mm |
10 |
90 |
| Hex screws for cylinder cowling |
8mm |
14 |
125 |
| Rotary valve cover screws |
8mm |
22 |
195 |
| Intake manifold screws, 277/377/447/503 |
8mm |
22 |
195 |
| Intake manifold screws, 277/377/447/503 |
6mm |
10 |
90 |
| Intake flange screws, 532/582/618 |
8mm |
14 |
125 |
| Lock nut for oil pump drive gear |
6mm |
7 |
60 |
Banjo bolt for oil pump |
6mm |
8 |
70 |
ITEM |
BOLT/NUT
SIZE |
NM |
INCH LBS |
| Cylinder screw for oil
pump
|
5mm |
5 |
45 |
| Spark plug, engine cold |
14mm |
27 |
240 |
| Allen screws for stator plate |
5mm |
6 |
55 |
| Taptite screw for pickups |
5mm |
6 |
55 |
| Lock nut for ignition coil |
6mm |
8 |
70 |
| Hex screws for mouting plate |
6mm |
5 |
45 |
| Hex screws for starter gear |
8mm |
22 |
195 |
| Studs for water outlet socket |
6mm |
3 |
25 |
| Hex nut for water outlet socket |
6mm |
5 |
45 |
| Lock nut for water pump impeller |
6mm |
7 |
60 |
| Taptite screws for water pump housing |
6mm |
8 |
70 |
| Hex screws for gear box
|
8mm |
24 |
210 |
| Hex collar screw for gear box housing |
8mm |
24 |
210 |
| Hex screw for drive gear 1/2-20 UNF |
1/2" |
60 |
530 |
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32 Index for this section. |
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