Bottom catching speed bumps

Phoneblower · 20th August 2015, 17:57

My 75 has suddenly started catching the skid pan on speed bumps and the only thing that I can see is the drop links have split where they join the roll bar. the springs and struts look OK. Does anybody have any ideas?

Coups · 20th August 2015, 18:14

Double check none of the fixings for the under tray have come loose/dropped off. I had exactly the same prob. Thought it was the mudflaps catching but it was the under tray sagging at the rear.

Phoneblower · 20th August 2015, 18:18

Quote:

Originally Posted by Coups

Double check none of the fixings for the under tray have come loose/dropped off. I had exactly the same prob. Thought it was the mudflaps catching but it was the under tray sagging at the rear.

I did check the tray and it is all bolted up tight.

Rick-sta · 20th August 2015, 18:21

is your exhaust heatshield still bolted up all the way along the exhaust? the rear ones dropped on mine which is now scraping on speed bumps

Coups · 20th August 2015, 18:31

Split rubbers shouldn't cause a car to drop on its suspension by much......
Definitely no broken springs?
Tyres not really under inflated?
Obvious I know and I'm sure you've checked but can't really think of much else that's cause the car to drop.

Phoneblower · 20th August 2015, 19:51

Quote:

Originally Posted by Rick-sta

is your exhaust heatshield still bolted up all the way along the exhaust? the rear ones dropped on mine which is now scraping on speed bumps

All still bolted up and you can see the marks on the tray where it is hitting the bumps

Phoneblower · 20th August 2015, 19:56

Quote:

Originally Posted by Coups

Split rubbers shouldn't cause a car to drop on its suspension by much......
Definitely no broken springs?
Tyres not really under inflated?
Obvious I know and I'm sure you've checked but can't really think of much else that's cause the car to drop.

tyres checked and ok had a feel around the springs and looked with a flash-light and I can not see any damage no oil leaks on the struts also when you look at the front of the car it seems level across the front

James.uk · 20th August 2015, 19:58

Have the speed bumps been raised? ...
...

Phoneblower · 20th August 2015, 20:12

Quote:

Originally Posted by James.uk

Have the speed bumps been raised? ...
...

Oh I wish it was that simple lol

Coups · 20th August 2015, 21:07

I'm out of ideas..... If the cars sitting at the same level both sides it rules out one side of the suspension failing. As its independent suspension it'd be bad luck for both sides to go at once anyway.
Could it be a road engineering issue rather than a fault with your car?
Is it always the same speed bump that's getting you or is it all if them. Just thinking the roadway itself might have changed a bit, ie, ruts being worn by heavy vehicles, busses etc, either side of the hump.

20th August 2015, 17:57	#1
Phoneblower Regular poster Rover 75 Tourer Join Date: Sep 2013 Location: Romford Posts: 62 Thanks: 9 Thanked 0 Times in 0 Posts	Bottom catching speed bumps My 75 has suddenly started catching the skid pan on speed bumps and the only thing that I can see is the drop links have split where they join the roll bar. the springs and struts look OK. Does anybody have any ideas?

20th August 2015, 18:21	#4
Rick-sta This is my second home MG ZT 2.0 CDTI+ in Typhoon, MG TF 135 in Typhoon & Rover 75 Connoisseur CDTI SE in Pearl Black Join Date: Oct 2012 Location: Norfolk Posts: 7,537 Thanks: 2,718 Thanked 2,827 Times in 1,462 Posts	is your exhaust heatshield still bolted up all the way along the exhaust? the rear ones dropped on mine which is now scraping on speed bumps __________________ How to retrofit Cruise Control on a diesel with no OEM wiring in place: Link How to retrofit heated electric memory seats with no OEM wiring in place: Link How to operate FBH and ATC via text Link How to restore cloudy projector headlights Link

20th August 2015, 18:14	#2
Coups Posted a thing or two Rover 75 Contemporary SE Join Date: Apr 2014 Location: Dundee Posts: 1,941 Thanks: 545 Thanked 520 Times in 402 Posts	Double check none of the fixings for the under tray have come loose/dropped off. I had exactly the same prob. Thought it was the mudflaps catching but it was the under tray sagging at the rear.

20th August 2015, 18:31	#5
Coups Posted a thing or two Rover 75 Contemporary SE Join Date: Apr 2014 Location: Dundee Posts: 1,941 Thanks: 545 Thanked 520 Times in 402 Posts	Split rubbers shouldn't cause a car to drop on its suspension by much...... Definitely no broken springs? Tyres not really under inflated? Obvious I know and I'm sure you've checked but can't really think of much else that's cause the car to drop.

20th August 2015, 19:58	#8
James.uk Passed Away 2002 Pale Blue. Rover 75 CDTi Connoisseur auto. 170K miles Join Date: Dec 2008 Location: Near the M67. Posts: 14,509 Thanks: 199 Thanked 585 Times in 397 Posts	Have the speed bumps been raised? ... ...

20th August 2015, 21:07	#10
Coups Posted a thing or two Rover 75 Contemporary SE Join Date: Apr 2014 Location: Dundee Posts: 1,941 Thanks: 545 Thanked 520 Times in 402 Posts	I'm out of ideas..... If the cars sitting at the same level both sides it rules out one side of the suspension failing. As its independent suspension it'd be bad luck for both sides to go at once anyway. Could it be a road engineering issue rather than a fault with your car? Is it always the same speed bump that's getting you or is it all if them. Just thinking the roadway itself might have changed a bit, ie, ruts being worn by heavy vehicles, busses etc, either side of the hump.