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Rotax Torque Specifications

Item
Bolt/Nut Size
Torque In. lbs.
Loctite - If Any
Crankcase screws, 532/582/618
8mm
210
none
Crankcase screws, 277/377/447/503
8mm
195
none
Crankcase screws
6mm
90
none
Crankcase mounting nuts
10mm
335
none
Crankcase mounting studs 532/582/618
10mm
105
242
Crankcase mounting studs 277-503
10mm
90
242
Cylinder hex collar screws
8mm
210
grease under head
Cylinder studs
8mm
60
242
Cylinder head nuts
8mm
195
none
Magneto Nut 277-503
22mm
800
222
Magneto Nut 532/582/618
22mm
840
222
Fan Nut
16mm
530
none
Allen screw for fan housing
6mm
90
none
Allen screws for stator plate
5mm
55
222
Taptite screws for trigger coils
5mm
55
none
Allen screws for starter pulley
8mm
195
none
Hex or allen screws for rewind starter
6mm
90
none
Hex screws for cylinder cowling
8mm
125
none
Rotary valve cover screws
8mm
195
none
Intake manifold screws
8mm
195
none
Intake manifold screws
6mm
90
none
Intake flange screws 532/582/618
8mm
125
222
Lock nut for oil pump gear
6mm
60
222
Banjo bolt for oil pump
6mm
70
none
Slotted screw for oil pump
5mm
45
222
Spark Plug, cold engine
14mm
240
none
Allen screw for stator plate
5mm
55
222
Taptite screw for pickup
5mm
55
none
Locknut for ignition coil
6mm
70
none
Hex screws for mounting plate
6mm
45
none
Hex screws for starter gear
8mm
195
222
Studs for water outlet socket
6mm
25
222
Hex nut for water outlet socket
6mm
45
222
Locknut for water pump impeller
6mm
60
620
Taptite screw for water pump housing
6mm
70
242
Hex screws for gearbox
8mm
210
none
Hex collar screw for gear box housing
8mm
210
grease under head
Hex screw for drive gear
1/2"
530
242

Type A Gearbox Torque Specifications

Item
Size
Torque in. lbs
Loctite If Any
Allen screw on adaptor flange
10mm
482
242 on the thread
680 on the shank
Studs
8mm
70
222
Hex screw for drive gear
1/2"
530
242
Hex Nuts
8mm
195
none


Type B Gearbox Torque Specifications

Item
Size
Torque in. lbs.
Loctite If Any
Hex collar screws
8mm
210
Grease under head
Hex screw for drive gear
1/2"
530
242
Hex screws
8mm
210
none


      Type C Gearbox Torque Specifications

Item
Size
Torque in. lbs
Loctite If Any
Hex collar screw
8mm
210
Grease under head
Hex screw for flywheel
1/2"
530
242
Allen screws
6mm
90
none
Allen screw for drive gear
8mm
210
242
Allen screws for coupling flange
10mm
350
242
Hex nut on prop shaft
30mm
2220
242



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