Technical  Rear Shock absorbers

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Technical  Rear Shock absorbers

MLW

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2006 Panda with rusty rear shock absorbers. Any issues with fitting them. Looks like a top and bottom bolt, that's it.
SACHS or Monroe, which brand is best?
Any views?
 
Fiat use at least 2 different manufactures

Cofap and Monroe

Makes no difference

Rubber bushes normally go first


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I take it’s on 155 tyres

The tall sidewalks will make it appear a bit wobbly.

There not much to be gained from the rear shocks unless those fitted are worn out

In my opinion the best tyre from the passenger seat anyhow especially over bad roads and speed humps
 
I remember Monroe as a top make 30 years ago, but opinion now seems to be they are so so. Mind you, many brands are not what they use to be.
 
Usually good for 50000 miles if fitted properly and the rear is normally lightly loaded

We have seen some fitted by a garage rip the rubber bush’s out in about a year
 
Amazingly Halfords had SACHS for £32.30 each. Numbers match up with the SACHS website. Does the car need to be down on the springs for final tightening?
 
The top mounting bolt is very easy to cross-thread and the self cutting tip makes thead damage a considerable problem. Fit the top bolts first. Tighten fully then slacken 1/2 turn so the shock sleeve is loose. Fit the bottom bolts. Jack up the swing arm until the car body just starts to lift off the axle stands. Fully tighten both bolts. Repeat for the other side.
 
aha…now thats interesting. upper and lower bolts final torque up (70nm) wheels on ground?
ahhh, I'm not so convinced on this. I can understand the suspension arm bush being in a horizontal position and having a big diameter so being on the floor thing. The smaller rubber top and bottom bush on the rear shocks are in a verticle position with a lot more travel tolerance, I would like to see some maths on this.
 
Knock yourself out if you want to do the maths

I'd just go with what the fiat instructions say

If it wasn't important they wouldn't have bothered, time is money as they say


Someone had the shocks changed on a lift and they failed at the next MOT


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Note that this operation is essential to ensure efficient rear suspension operation and to prevent premature damage to the shock absorber and rear axle rubber bushes
 
ahhh, I'm not so convinced on this. I can understand the suspension arm bush being in a horizontal position and having a big diameter so being on the floor thing. The smaller rubber top and bottom bush on the rear shocks are in a verticle position with a lot more travel tolerance, I would like to see some maths on this.

You can see the change in angle of the shock as the spring pan arcs up
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Still need a little more time with the excel spreadsheet, but the official fiat instruction was always going to be the top trump.
Would like to see the torque wrench used on that top nut when the car is on the deck to get 80Nm, I could only just manage an offset ring spanner.

Hey it is in the FIAT instruction so must be doable.
 
Measure from the centre of the hub to the top of the wheel arch

Take the wheel off

Jack under a strong part of the axle and lift it up until centre of the hub to the top of the wheel arch is the same measurement

Torque up the bolts
 
Now hang on thats cheating!
Plus its not FIAT official.

A good bit of advice/tip for the future if mine fails the MOT next year.

I lowered the car but left enough gap in the arch to get a socket on it.
At the time I thought it was the lesser of two evils.
Correct torque but not fully loaded or fully loaded and guess a value in a cramped space with a short ring spanner

I still got the exhaust to do any issues its going to be posted on here first.
 
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