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26th November 2021, 23:46 | #1 |
Can't help myself
Rover 75 CDTi 2005 Join Date: Jan 2018
Location: Lincoln
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Loud rear suspension bang when wheel drops
Every time the car "takes off" i.e. the weight comes off the rear axle e.g. an inclining undulation or ramp ends and the rear wheels drop suddenly, there's a long bang from the rear passenger-side corner. I've rebuilt the front suspension on two 75s but part from changing a pair of rear springs, have little experience of the rear end.
There's no indication of play in any direction with the wheel jacked up but then it's fully unweighted so that I can't emulate the movement. Any thoughts? Dougie.
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R75 C2 RJBLH Connoisseur CDTi Auto Saloon • Built 08/02/2005 @14:57 hrs: Registered 26/08/2005 • 122nd of 141 built that day • British Racing Green Pearlescent (HFF) • Sandstone leather with black piping (SPJ) • 137,000 miles |
27th November 2021, 10:59 | #2 |
Posted a thing or two
rover 75 club se Join Date: Apr 2011
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is this the zt you are working on ? i had this exact problem with my 75. in my case i had been supplied with the wrong length shock absorbers, i bought online . they were advertised as r75 rears. indeed they were ,but the seller had not realised that the shocks were for the very last model 75"s ( contempory) . these had the mgzt suspension set up. when i removed mine again and compared the new against the old ones, the new ones were shorter. i wondered why i had to jack up the rear arms so high to fit them. so i would suggest that you check that you have the correct length springs and damper combination if this is in fact your problem. what you could be experiencing is the shocks bottoming out whilst going over road humps , before you have" landed" so to speak. ..... and whilst you dont need much speed for this to occur , it certainly makes quite a thud.
Last edited by xsport; 27th November 2021 at 11:06.. |
27th November 2021, 11:23 | #3 |
Can't help myself
Rover 75 CDTi 2005 Join Date: Jan 2018
Location: Lincoln
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Thanks. I don’t have a ZT any more (see sig). The springs and dampers are original on the rear.
Dougie.
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R75 C2 RJBLH Connoisseur CDTi Auto Saloon • Built 08/02/2005 @14:57 hrs: Registered 26/08/2005 • 122nd of 141 built that day • British Racing Green Pearlescent (HFF) • Sandstone leather with black piping (SPJ) • 137,000 miles |
27th November 2021, 11:36 | #4 |
This is my second home
MG ZT-T 190 Monogram Typhoon Join Date: Jan 2009
Location: Oxfordshire
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Is the bump stop still in place? If they are the original shocks, it may be that the bump stop has disintegrated?
Item 6 from Rimmer Bros. https://rimmerbros.com/Item--i-GRID001548 |
27th November 2021, 11:38 | #5 | |
Can't help myself
Rover 75 CDTi 2005 Join Date: Jan 2018
Location: Lincoln
Posts: 871
Thanks: 469
Thanked 150 Times in 113 Posts
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Quote:
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R75 C2 RJBLH Connoisseur CDTi Auto Saloon • Built 08/02/2005 @14:57 hrs: Registered 26/08/2005 • 122nd of 141 built that day • British Racing Green Pearlescent (HFF) • Sandstone leather with black piping (SPJ) • 137,000 miles |
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27th November 2021, 11:46 | #6 |
This is my second home
MG ZT-T 190 Monogram Typhoon Join Date: Jan 2009
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Sorry, quite right.
So when the weight is taken off the wheel, the spring will extend and take up the play from the failed component I guess. This could point towards the top mount, item 4 perhaps? I saw this on the front of a little fiesta. When the car was on the deck the suspension felt 'loose', but when jacked up the play disappeared when checking by hand. The front top mount had failed. Last edited by Typhoon190; 27th November 2021 at 11:49.. |
12th March 2023, 07:21 | #7 | |
Gets stuck in
Rover 75 Contemporary SE 2.0 Diesel Auto 2005 Facelift Join Date: Dec 2010
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Quote:
I have just replaced the rear shock on my 05 Contemporary with 'standard' ones. I am now a little worried that I have fitted the wrong ones. I used this thread https://the75andztclub.co.uk/forum/showthread.php?t=104 and Rimmers website (has the same info) to purchase the new shocks. This is the label from the old ones I removed: And here is the label under the rear seat squab. When did Rover change the rear setup on the Contemporary? From what I have seen in my car it has the stansdard setup (label under seat & label on shock) SteveN
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Mods Fitted: Cruise Control; FBH with GSM (was FrenchMike's Remote) & dash button; Rear Blind; In-line Thermostat; wired in front & rear cameras; Mercedes DRL +DRL2; twin horns, twin usb power outlets, digital coolant temperature readout, Real Walnut dash, Walnut & black leather steering wheel, Walnut Handbrake grip, Towbar with full Rover harness. Rear seat cup holders. Wanted: Walnut auto gear stick handle Mods to do: all done , need to come up with some more. |
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