Can anyone confirm the torque setting for the wheel nuts (locking or otherwise) on an Octy II? PD140 with 205/55R16 if it makes any difference...

Had a puncture over the weekend, and had to put the spare on. Got flat off, put spare on, tightened properly using sockety thing that came with the car.

Just had the tyre bloke here to replace aforementioned flat (big hole in sidewall) and he couldn't undo the nuts with his air gun

I assume these things are designed to be undone/done up again with the supplied spanner/socket thing?

I use the same for all (normal & lockers) wheel nuts i.e. 85 ft lb

I use the same for all (normal & lockers) wheel nuts i.e. 85 ft lb

Thanks. Am I right in thinking that this equates to 85lb of weight/pressure applied at a 1ft (12 inch) moment arm? If so, I may have applied a little more than this :eek:

Thanks. Am I right in thinking that this equates to 85lb of weight/pressure applied at a 1ft (12 inch) moment arm? If so, I may have applied a little more than this :eek:

Now you're getting a bit too technical; but it sounds right. Even using an OE wheelbrace it is not that tight.

Personally, I've had a torque wrench for years and set the correct amount every time.

The handbook says 120 Nm., which is not very tight! You can get more than this with the supplied wheel brace.

The handbook says 120 Nm., which is not very tight! You can get more than this with the supplied wheel brace.

... which is 85 ft lb.

Its not a case of how tight can you get the wheel nuts, but getting them at the correct tightness so as to hold the wheel on properly without creating excess stress on the wheels, wheel studs and hubs.

The conversion factor from ft.lbf to Nm is 1.35582.

85 ft.lbf = 115 N.m

120 N.m = 88.5 ft.lbf

The latter is the right setting for the wheelbolts, locking or otherwise. I use 90 ft.lbf on my old imperial wrench.

Les.

The conversion factor from ft.lbf to Nm is 1.35582.

85 ft.lbf = 115 N.m

120 N.m = 88.5 ft.lbf

The latter is the right setting for the wheelbolts, locking or otherwise. I use 90 ft.lbf on my old imperial wrench.

Les.

All right smarty pants.

120Nm is the 'book' figure (I was suggesting 85 ft lb from memory) so to set 90 ft lb imperial is better.

So I can't just stand on the wench anymore then? :eek: :confused:

I'm an engineer and can't help myself. Not sure even my torque wrench works to 5 decimal places... :-)

So I can't just stand on the wench anymore then? :eek: :confused:

That's what I did - which is presumably why it was a bit too tight :eek:

So I can't just stand on the wench anymore then? :eek: :confused:

Depends how strong she is.

Anyway, use a torque wrench set at 88 ft lbs or 120 NM - then you know you are doing it right.