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C3 Picasso (2010) 1.6 HDi 92 Rear Disk Hub Nut Torque


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#1 pmcg

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Posted 24 July 2016 - 10:21 AM

Just got new discs & pads to fit on the rear.

 

Safety sheet with the discs says Torque to 90Nm, Citroen service sheet says 312Nm, any experts out there?



#2 granpa

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Posted 24 July 2016 - 10:37 AM

Wow what a difference



#3 Phill

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Posted 24 July 2016 - 02:19 PM

One is quoting NM and the other lb square inch is my guess 312 NM would crush the planet to a disk ( not quite but I dont think there is anything on a car that is that high, maybe a monster truck digger.


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#4 granpa

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Posted 24 July 2016 - 04:20 PM

90 Nm is 66.4 ft/lb,



#5 pmcg

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Posted 25 July 2016 - 02:14 PM

Citroen list it in the worksheet as "daNM 31.2" so times by 10 = 312nM.

 

Checked with Brake World the disc supplier and that say it's the bearing that is important as they are not all the same so on their discs torque to 90Nm.

 

 



#6 stimulator

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Posted 25 July 2016 - 02:51 PM

the C3 Saloon Haynes for cars 2002 to 2005 gives the following, WHICH I SUBMIT AS GUIDE INFO ONLY.

Rear

Caliper mounting bracket bolts 50 Nm 37 Lbf ft
Hub Nut 200 Nm 148 Lbf ft

Front
Caliper mounting bracket bolts 105 Nm 77 Lbf ft
Driveshaft retaining nut 245 Nm 181 Lbf ft.


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Previous Xsara Picasso 20HDi, C3 SX 1.4HDi, C3 SX 1.6HDI, C4 Picasso 1.6HDi VTR+ EGS 62 Reg C3 Picasso VTR+ 1.6 HDi 92BHP

#7 granpa

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Posted 25 July 2016 - 04:21 PM

There was a time when the only torque measurement [not often applied on cast iron engines] was on the cylinder head bolts, all the rest were tight [knock spanner with heel of the hand] or bloody tight [ same as before using hammer ], with the exception of the wheel hub bolts [for taper roller bearings] they were tight then back off one flat and insert cotter pin.


Edited by granpa, 25 July 2016 - 04:24 PM.


#8 pmcg

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Posted 31 May 2018 - 06:28 PM

Anyone got a Haynes manual that can check the torque for the rear nut?

 

On the last ones we did the "bearings" in the non-oem discs were 90Nm confirmed by the disc manufacturer.

 

Now have Borg & Beck to fit and they don't suggest a torque other than same as OEM.