Front brake bolts torque spec

[alexdecker]

Hey all

Not sure what these are called in the manual, but the two large bolts clamping the front brake parts together - what are the torque specs for those?

[deltarider]

3,4 - 4 kg-m (24,6 - 28,9 lbs-ft) according to p.2 the official Shop Manual Honda CB500-550.

[Bryanj]

Never used one just BT

[Laverdaroo]

Or if from Yorkshire FT, and that’s not finger tight


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[deltarider]

The official Shop Manual Honda CB500-550 is found in Aladdin's Cave in a good resolution.
There is one torque spec there that still puzzles me today.
It's about #22: the front wheel axle nut. Early 80s I did torque that nut @ the recommended 5,5 - 6,5 kg-m (39,5 - 47 lbs-ft), only to find out the wheel wouldn't turn anymore. I loosened the nut up again and all was fine.

[Johnny4428]

The official Shop Manual Honda CB500-550 is found in Aladdin's Cave in a good resolution.
There is one torque spec there that still puzzles me today.
It's about #22: the front wheel axle nut. Early 80s I did torque that nut @ the recommended 5,5 - 6,5 kg-m (39,5 - 47 lbs-ft), only to find out the wheel wouldn't turn anymore. I loosened the nut up again and all was fine.

That doesn’t sound right, might be incorrect spacer between bearings? Worth checking out!

[McCabe-Thiele (Ted)]

The official Shop Manual Honda CB500-550 is found in Aladdin's Cave in a good resolution.
There is one torque spec there that still puzzles me today.
It's about #22: the front wheel axle nut. Early 80s I did torque that nut @ the recommended 5,5 - 6,5 kg-m (39,5 - 47 lbs-ft), only to find out the wheel wouldn't turn anymore. I loosened the nut up again and all was fine.

That doesn’t sound right, might be incorrect spacer between bearings? Worth checking out!

If I'm reading the post right that was 40 years ago so a bit late in the day..

[deltarider]

I just discussed it with a friend who owns a collection CB Fours and restores them. He reasons in principle finger tight is enough as that nut can't go anywhere.

[K2-K6]

The official Shop Manual Honda CB500-550 is found in Aladdin's Cave in a good resolution.
There is one torque spec there that still puzzles me today.
It's about #22: the front wheel axle nut. Early 80s I did torque that nut @ the recommended 5,5 - 6,5 kg-m (39,5 - 47 lbs-ft), only to find out the wheel wouldn't turn anymore. I loosened the nut up again and all was fine.

That doesn’t sound right, might be incorrect spacer between bearings? Worth checking out!

If I'm reading the post right that was 40 years ago so a bit late in the day..

Certainly there's no way a correctly assembled wheel spindle arrangement should tighten when that is done.

Agree it would point to something being wrong or out of place to do that.

Recognise that the date here may have impact, but believe same bike is still in use ?

More to the "engineering" point in detail though, that eventuality should absolutely not inform how the assembly is set for anyone, now or then. Clearly advice originating from that is false.

[deltarider]

Certainly there's no way a correctly assembled wheel spindle arrangement should tighten when that is done.

Agree it would point to something being wrong or out of place to do that.

Recognise that the date here may have impact, but believe same bike is still in use ?

Not only that, it's still the same wheel and as far as I know, bearings were never replaced, unless PO had it done in the three years and first 33.000km he has owned the bike. Why I torqued that nut? Probably to use my then new torque wrench. I must have had my front wheel out at the occasion to replace brake pads or so. 

More to the "engineering" point in detail though, that eventuality should absolutely not inform how the assembly is set for anyone, now or then. Clearly advice originating from that is false.

K2-K6, I had thought my English was reasonable, but - not being a native speaker - I have no idea what you are saying. Could you please paraphrase your last two sentences?

[K2-K6]

To clarify, if there was  problem with tightening the axle originally (wheel stopped rotation) then that is no a reason for changing  the torque setting away from manual/specification.

The original fault should be investigated and not an adaption made in how it's assembled.

A torque setting is always put there for a specific reason.