940 Bent Half Shaft

martin calva · Aug 26th, 2023, 08:10

My two questions:
- How did one of the half shafts on my 1994 2.4TIC 940 get bent?
- (More important) Where can I get a replacement half shaft?

Background:
For weeks I had been trying to solve the problem of vibration when braking which was getting worse and worse. I assumed (as in previous years) that changing the front disks would solve the problem. No luck there. I tried again, installing new Bosch disks and I measured the run-out (0.01 mm, 0.02 mm). Well within what Hayes says is permissible (0.06 mm).

I turned the car over to the local garage (I'm in Normandy) who tried another set of front disks - still bad vibration on braking. Garage owner is a former Volvo service manager and he knows 940s. There was a tiny bit of play in the front suspension system and he replaced several joints - still bad vibration on braking.

Then he looked at the rear disks - one (RHS) had serious easily visible run out - about 5 mm (3/16 inch). He removed the disk and the hub on the half shaft was visibly wonky when turning.

First Question: How did this happen? The car has been driven normally on good roads slowing for the occasional speed bumps, not carrying heavy loads. Do Volvo half shafts get bent spontaneously?

Second Question (more important): How can I obtain a replacement half shaft as soon as possible? Skandix told me that they are no longer supplied by Volvo - Volvo part number 6814100. Any leads will be gratefully received.

Martin

john.wigley · Aug 26th, 2023, 08:38

Martin, I have never heard of a half-shaft becoming bent in service before and absolutely no idea of how that might have happened. It is a new one on me!

As the part is NLA, I think your best bet for a replacement would be through a breaker. I know of several in the UK who may be able to help, but you would need to ask if they will send to France and what the cost of that might be in these post-Brexit days.

Regards, John.

martin calva · Aug 26th, 2023, 09:49

Quote:

Originally Posted by john.wigley

..., I think your best bet for a replacement would be through a breaker. I know of several in the UK who may be able to help, but you would need to ask if they will send to France and what the cost of that might be in these post-Brexit days.

Regards, John.

John, Thank you.
Do any of them have a website or an email address so I can ask them?
Martin

john.wigley · Aug 26th, 2023, 12:46

Quote:

Originally Posted by martin calva

John, Thank you.
Do any of them have a website or an email address so I can ask them?
Martin

Two local to me that I have used in the past are Volsaa at Derby and C.P. Motors at Tamworth. A quick Google search will take you to their websites, and others are available ...

Regards, John.

J liddy · Aug 26th, 2023, 22:29

Hi I'm sure I saw a second hand pair on Ebay today he breakes 700.and 900s he's based in stoke on trent. Staffordshire they weren't that expensive .think his name was AVONERI or similar I will find it tomorrow if you can't find it he's got lots of spares for sale

360beast · Aug 27th, 2023, 07:10

Quote:

Originally Posted by J liddy

Hi I'm sure I saw a second hand pair on Ebay today he breakes 700.and 900s he's based in stoke on trent. Staffordshire they weren't that expensive .think his name was AVONERI or similar I will find it tomorrow if you can't find it he's got lots of spares for sale

Yep another guy taking perfectly good saveable/running cars off the road, what's the point in breaking them all when there won't be any left for the parts to go on? Atleast when I was breaking them they were rot boxes and or beyond repair/badly damaged to the point nobody would want them.

Moomoo · Aug 27th, 2023, 07:53

Quote:

Originally Posted by J liddy

Hi I'm sure I saw a second hand pair on Ebay today he breakes 700.and 900s he's based in stoke on trent. Staffordshire they weren't that expensive .think his name was AVONERI or similar I will find it tomorrow if you can't find it he's got lots of spares for sale

Avones, 07817 488296. Cheadle , Staffordshire. Good man! Knows his stuff!

fastbackwill · Aug 27th, 2023, 09:00

cp motors are now shut
closed down at the end of june

Moomoo · Aug 27th, 2023, 09:07

Quote:

Originally Posted by fastbackwill

cp motors are now shut
closed down at the end of june

Aye, shame that , Steve.☹️

Forrest · Aug 27th, 2023, 23:17

As for cause, if you’ve not hit a curb or deep pothole has the car been raised using a jack under the differential?

Aug 26th, 2023, 08:10	#1
martin calva Senior Member Last Online: Feb 8th, 2024 21:33 Join Date: Apr 2015 Location: Falaise	940 Bent Half Shaft My two questions: - How did one of the half shafts on my 1994 2.4TIC 940 get bent? - (More important) Where can I get a replacement half shaft? Background: For weeks I had been trying to solve the problem of vibration when braking which was getting worse and worse. I assumed (as in previous years) that changing the front disks would solve the problem. No luck there. I tried again, installing new Bosch disks and I measured the run-out (0.01 mm, 0.02 mm). Well within what Hayes says is permissible (0.06 mm). I turned the car over to the local garage (I'm in Normandy) who tried another set of front disks - still bad vibration on braking. Garage owner is a former Volvo service manager and he knows 940s. There was a tiny bit of play in the front suspension system and he replaced several joints - still bad vibration on braking. Then he looked at the rear disks - one (RHS) had serious easily visible run out - about 5 mm (3/16 inch). He removed the disk and the hub on the half shaft was visibly wonky when turning. First Question: How did this happen? The car has been driven normally on good roads slowing for the occasional speed bumps, not carrying heavy loads. Do Volvo half shafts get bent spontaneously? Second Question (more important): How can I obtain a replacement half shaft as soon as possible? Skandix told me that they are no longer supplied by Volvo - Volvo part number 6814100. Any leads will be gratefully received. Martin

Aug 26th, 2023, 08:38	#2
john.wigley VOC Member since 1986 Last Online: Yesterday 23:40 Join Date: Jan 2007 Location: Leicestershire	Martin, I have never heard of a half-shaft becoming bent in service before and absolutely no idea of how that might have happened. It is a new one on me! As the part is NLA, I think your best bet for a replacement would be through a breaker. I know of several in the UK who may be able to help, but you would need to ask if they will send to France and what the cost of that might be in these post-Brexit days. Regards, John. __________________ Time flies like an arrow, fruit flies like a banana .....

Aug 26th, 2023, 22:29	#5
J liddy Senior Member Last Online: Yesterday 19:20 Join Date: Jul 2019 Location: Stoke on trent	940 TIC auto 1995 Hi I'm sure I saw a second hand pair on Ebay today he breakes 700.and 900s he's based in stoke on trent. Staffordshire they weren't that expensive .think his name was AVONERI or similar I will find it tomorrow if you can't find it he's got lots of spares for sale

Aug 27th, 2023, 09:00	#8
fastbackwill Junior Member Last Online: May 5th, 2024 18:29 Join Date: May 2011 Location: lichfield	cp motors are now shut closed down at the end of june

Aug 27th, 2023, 23:17	#10
Forrest VOC Member Last Online: Yesterday 22:40 Join Date: Feb 2008 Location: Gloucester	As for cause, if you’ve not hit a curb or deep pothole has the car been raised using a jack under the differential?

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