CV Bolt torque?

not know exactly and I never used a torque wrench
but I would take between 55 and 65 Nm

 

It's on page N20 in the 512TR WSM Vol. 2 -- but they mangled the units. It says 78 daNm, but that would be a crazy impossibly high torque. My guess is that they meant 78 Nm = 57 ft-lbs (based on the TR being 6 daNm = 60 Nm with the same size fastener).

 

this I think so too

 

And the blame can be placed solely on the nutball proponents of the metric system in the 1980s . Not only did they want all units to be metric, their "plan" was that everything could be expressed with more "simple" numbers by using the various prefixes on the units -- e.g., ...mega, kilo, hecto, deca, the base unit (e.g., meter, gram, liter), deci, centi, milli, micro, nano, etc. -- which was horrible idea. Ferrari was just trying to be a good metric euro soldier when they started using torque units of daNm in the TR WSM. No one on Earth today talks about torque in units of daNm, and, this mistake in the 512TR WSM, IMO, shows that by the early 1990s, the more sensible idea of always using just Nm for torque, and then whatever number was needed, became the much less confusing convention -- thank goodness!

 

I would not say horrible idea. we in europe are used to this mega, hecto, kilo, less the deca, but also the deci, centi, milli, micro, nano

but ferrari is italian and in italy all is a little different as we all know

 

While you are at it, who were the morons that wanted to change "foot-pound" to "pound-feet" of torque? In plain English, one foot-pound will always be one foot-pound. Guess it is old dogs new tricks or something. EDoug

 

here in europe the foot-pound or the pound-feet is totally unusual. may be in UK not?

 

The use of da.Nm comes from its closeness to kg.m, which was commonly used in the past. This is no longer the case, as kg.m has fallen into disuse.

 

Grade 10.9, M10 bolt, fine thread, table says 73 Nm, so 78 Nm should be ok. Long live the metric system. I've noticed that even Americans are using metrics when they deal with stuff that needs small tolerances

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Best, Peter