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fpan

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• Feb 15, 2015

• #1

I am changing the rear shocks today but I don't know the tightening torque for the top and bottom bolts that hold it in place.

Could someone help?

Thanks a lot guys!

 

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varesecrazy

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• Feb 15, 2015

• #2

the porter manual normally breaks down such figures,

as normal Haynes attempt to generalise too..,

what thread will determine the torque required.. so the front of any Haynes should give a good clue there,

out of interest..are they Nyloks, or using thread lock compound..??,

Charlie

 

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varesecrazy

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• Feb 15, 2015

• #3

500 section, as lots of modified / lowered ones there..,

 

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fpan

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• Feb 15, 2015

• #4

I didn't see any thread lock in the bolt and the bolt just goes into a recess, there is no nut.

I found these in eLearn but the 100HP is not covered unfortunately

Component
Fastening
dia
Value (daNm)
Validity
REAR SHOCK ABSORBERS (S.M.)
Bolt
M10 X 1.25
(Upper) 7
1.1
1.2 8v
1.3 JTD
REAR SHOCK ABSORBERS (S.M.)
Bolt
M12 X 1.25
(Lower) 6.5
1.1
1.2 8v
1.3 JTD
REAR SHOCK ABSORBERS (S.M.)
Bolt
M12x1.25
(Lower) 10
1.2 8v 4x4
1.3 JTD 4x4

So the tops are 7 Nm and bottoms anything between 6.5 and 10Nm. It seems that the dealer that replaced the rears sometime ago had overtightened them...

 

Last edited: Feb 15, 2015

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Speedwell

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• Feb 15, 2015

• #5

My Haynes manual quotes the following for Panda rear shock absorber mounting bolts.
Upper 80Nm, 59 lbs ft Lower 70Nm, 52 lbs ft

 

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fpan

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• Feb 15, 2015

• #6

thanks, i will tighten them up, I didn't realise the eLearn was in deka Nm as well!

 

Last edited: Feb 15, 2015

PuntoHowTo

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• Feb 15, 2015

• #7

fpan said:

It seems that the dealer that replaced the rears sometime ago had overtightened them...

Click to expand...

Garages will use a torque wrench for torque critical parts but something like shock bolts will need to mearly be a minimum to prevent working loose put 100nm on them isn't going to make anything unsafe, maybe a couple of hundred nm would put them at risk of sheering but you'd need to go all out with a sizeable breaker bar to achieve that.

The reason there are torque settings for every bolt and screw is because in manufacture they will use a different airpowered/electric driver for each and every fixing and each one of those drivers will need setting up appropriately as to not cause damage or put a customer at risk.

As an example when I worked at an electronics manufacturers, there was a torque setting of 1.5nm for putting a screw into the battery compartment of a BMW clamp meter (used on car production lines) that's just the nature of manufacturing

 

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varesecrazy

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• Feb 15, 2015

• #8

Speedwell said:

My Haynes manual quotes the following for Panda rear shock absorber mounting bolts.
Upper 80Nm, 59 lbs ft Lower 70Nm, 52 lbs ft

Click to expand...

for clarity.., as somebody will find this later for info..

which model Panda ?,

what size/style of fixing ( thread size + pitch) ??


Charlie

 

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• Feb 15, 2015

• #9

varesecrazy said:

for clarity.., as somebody will find this later for info..
which model Panda ?,
what size/style of fixing ( thread size + pitch) ??
Charlie

Click to expand...

My manual covers all standard Pandas from 2004 to 2012. Doesn't seem to cover the 100hp version.
The bolts are shear loaded so I can't see that the torque is very critical as long as it is not so low that the bolt can shake loose.

 

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fpan

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• Feb 16, 2015

• #10

varesecrazy said:

for clarity.., as somebody will find this later for info..

which model Panda ?,

what size/style of fixing ( thread size + pitch) ??


Charlie

Click to expand...

The 70/65 Nm (FR/RE) on eLearn is for anything other than the 4x4. Although the 100HP is not listed in the eLearn at all, it has the same suspension setup as the 1.2 so I assume the torque figures to be the same.