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Torque specs for "B" gearbox

by Eddie Postell in 2 Stroke Technical Questions 12 years ago

Where can I find the correct torque for the bolts on a "B" gearbox?

Re: Torque specs for "B" gearbox

by bill martin » 12 years ago

bill martin

10 757 0

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

Nick Axworthy

16 325 0

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

bill martin

10 757 0

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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