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Gareth

Member Since: 12 Dec 2011
Location: Woodford
Posts: 1115

I have a new noise to report....

I hear a pretty loud 'crack' or 'pop' from the rear if I lift off, or reapply the accelerator with anything less than smoothness.

A rough or sudden reversal of the accelerate/decelerate momentum will induce the noise. It only does once in each direction. By that I mean if I set off fast from traffic lights, it will make the noise. If I decelerate gently, then repeat the fast start it will NOT make the noise. If I accelerate gently it will not make the noise, but if I lift off the accelerator suddenly, it will. Then it will do it on the next acceleration. So whatever it is, its not something very loose, it obviously takes some force to move it and make the noise.

It was only doing it very occasionally until recently, now its got much more frequent.

I hope you understand this, its quite hard to describe! 2021 Defender 110 X-Dynamic HSE D300 MHEV
1966 S2a 109 aka Betsy

23rd Jul 2012 10:05am

Laurie

Member Since: 22 Feb 2008
Location: Sussex, England
Posts: 2897

2005 Defender 90 Td5 XS CSW Bonatti Grey

Sounds like A frame ball joint.
Also, check radius arm bushes.

23rd Jul 2012 10:38am

Gareth

Member Since: 12 Dec 2011
Location: Woodford
Posts: 1115

Thanks for that. I have tried to lever the radius arm bushes with a jemmy bar and the only movement is in the rubber flexing, so A frame joint seems like the culprit.

Is it normal practice to replace the whole A complete with ball joint and pivot bushes? or will it just be the ball joint itself that's worn?

Car has only done 50k miles, 52 plate. 2021 Defender 110 X-Dynamic HSE D300 MHEV
1966 S2a 109 aka Betsy

23rd Jul 2012 1:38pm

GREENI

Member Since: 22 Aug 2010
Location: staffs
Posts: 10383

Probably the ball joint, get a jemmy on that too.....

Check your UJ's too (not with the jemmy)

23rd Jul 2012 2:12pm

landy andy

Member Since: 15 Feb 2009
Location: Ware, Herts
Posts: 5799

2006 Defender 110 Td5 USW Zermatt Silver

Could also be drive flanges, or pinion wearing on the splines if not the ball joint, or prop uj's.

Andy

23rd Jul 2012 8:41pm

ashtrans
Site Sponsor

Member Since: 08 Nov 2008
Location: Harpenden
Posts: 259

I would say it's the diff drive flange rocking on the splines and 'cracking' under load

there is a recall on this which goes along the lines of remove prop, bolt and flange, cover pinion spline in loctite, do bolt up bloody tight !

Dave Dave

1st Aug 2012 4:03pm

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