Author Topic: Suspension noise sorted  (Read 1012 times)

February 18, 2013, 07:42:16 AM
Read 1012 times

OBone

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Creaking sound on sudden compression. Knocking sound when one wheel goes over bump.

Had it on a lift at Continental tires, and checked all the other bushings on the control arms etc with a tire iron: All good.
Checked the shocks all good.
Bushings keeping the swaybar attached to the cross member, seem to be a bit worn. Decided to replace the bushings and the end links while I am at it.

There is a big plastic under car plate that I had to remove to get there. When I had it of I discovered a torn CV boot on the inside joint at the gearbox, left hand side. I replaced that as well, but had to drive around without the under panel for a while. That thing removed is worth about 1.5l/100km in consumption. I suspect it is more drag that way.

New boot new sway bar bushes, and new end links. Noise is gone, car feels a bit tighter (might be my imagination) but gear changes are definitely smoother :confused: I suspect the gearbox has a slight twisting movement when it changes gear... Will have Subaru check the mouts and bushes on the next service
2005 Outback 3.0 R
That R probably stands for RACING, because it goes like the clappers

April 17, 2013, 11:11:22 AM
Reply #1

Bravofox

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Quote from: OBone;9731

Bushings keeping the swaybar attached to the cross member, seem to be a bit worn. Decided to replace the bushings and the end links while I am at it.


Hi OBone

Did you use parts from Subaru, or from another supplier?
2015 Outback 3.6R-S
-ex- 2006 Impreza 2.0R Wagon.
-ex -2009 SH XT A/T
-ex- 2009 SG9 XT Premium Manual
-ex- 2006 Impreza 2.0R Manual
-ex- 2002 Legacy 2.5GX A/T

April 17, 2013, 01:23:41 PM
Reply #2

LoopSoosStroop

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Man, lots of confusion for me after that post.

1,5 l per 100 for a cover plate? Knippie sout.

Subaru rear sway bars are known for moving laterally in their bushes and mounts. Car should feel a bit tighter after new bushes and endlinks.
2007 XT AT
Midrand - Gauteng

April 18, 2013, 12:26:26 PM
Reply #3

OBone

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From Subaru.

I considered having them shipped but the cost of shipment is prohibitive.



Quote from: LoopSoosStroop;11231
Man, lots of confusion for me after that post.

1,5 l per 100 for a cover plate? Knippie sout.

.


:confused:
2005 Outback 3.0 R
That R probably stands for RACING, because it goes like the clappers

April 19, 2013, 02:28:28 PM
Reply #4

PaulC

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OK - let's just get clarity on the 1.5 l/100 story...

Are you saying that your consumption INCREASED by 1.5 l/100 without the undertray, or it IMPROVED by 1.5l/100 without it??

The undertray is part of the aerodynamic package on the car, reduces swirl around the engine, so consumption should be worse without it.
3 Outbacks in a row :D
Currently 2006 Forester 2.5 X

April 19, 2013, 03:22:03 PM
Reply #5

Bravofox

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I think the "confusion" LoopSoosStroop is referring to, is that he finds it hard to believe that the removal of the undertray can cause a whopping 1.5L/100km increase in fuel consumption. (By increase I mean worse as in drinking more as in costing more money as in more CO2 emissions as in you catch my drift)
2015 Outback 3.6R-S
-ex- 2006 Impreza 2.0R Wagon.
-ex -2009 SH XT A/T
-ex- 2009 SG9 XT Premium Manual
-ex- 2006 Impreza 2.0R Manual
-ex- 2002 Legacy 2.5GX A/T

April 19, 2013, 05:53:45 PM
Reply #6

OBone

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O ja this is where I mentioned my undertray finding. I forgot about that

Yes it dropped without the tray and improve with. My initial estimate was 1.5 l per 100 but looking at fuelly more like 0.8 l per 100
« Last Edit: April 19, 2013, 06:05:50 PM by OBone »
2005 Outback 3.0 R
That R probably stands for RACING, because it goes like the clappers