Torque specs for "B" gearbox
in 2 Stroke Technical Questions
12 years ago
Where can I find the correct torque for the bolts on a "B" gearbox?
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Re: Torque specs for "B" gearbox
by bill martin » 12 years ago
Eddie,
The eight, or six (depending on your engine model) large bolts are torqued to 18 ft/lbs. The small bolts that hold the gearbox halves together are 8 ft/lbs. The drive gear on the end of the crank is torqued to 45 ft/lbs.
Bill.
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Re: Torque specs for "B" gearbox
by Nick Axworthy » 12 years ago
Bill have Rotax not upped the setting on that drive gear torque.
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Re: Torque specs for "B" gearbox
by bill martin » 12 years ago
Nick,
You're right. The B box crankshaft gear was upped to 59 ft/lbs, the C box propshaft gear was upped to 221 ft/lbs. All the other bolts stayed the same.
That just shows how long its been since I've changed one.
Bill.
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