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chassis Chassis cracks

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Posted

Just had our caravan serviced and it's thrown up two cracks in the chassis that have arisen since last year's service (photos attached). 

I've never seen this problem before, has anyone else seen it?
Has anyone got any advice on what the repair work might entail?
Our caravan is 10 years old with full service history. Will the manufacturer assist with the repairs?
Can our insurers be of any use?

Thanks,

Mark

ChassisSplitWithArrow1.png

ChassisSplitWithArrow2.png

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10 answers to this question

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Posted

LLC - Mark 

the simple answer to your questions 

Insurance will say wear and tear

Manufacturer may want to see more but are doubtful to offer much in the way of assistance due to it's age

What does your service guy say ?? the photo's look like it's the same hole on both sides of the chassis what is fixed to it does it go through exceptional stresses ??

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Posted

I would be asking ALKO what they think.

Maybe a simple welding job but ALKO do not like any interference with their chassis so clearance from ALKO would be helpful.

It begs the question how many more vans are affected.

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Posted

So if your engineer says this happens on these chassis is it a design flaw or Failure

It is therefore a possibility there are quite a few other chassis the same time to consult others and find out what BPW say or don't say

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Posted

It's actually a BPW chassis.

Our service engineer believes that ALKO chassis having 2 parts don't suffer from this problem but that the BPW chassis being one part does.

Not sure what BPW's reputation is on stuff like this but our service engineer believes it is recent (no sign of it in last service in October).

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Posted

So if your engineer says this happens on these chassis is it a design flaw or Failure

It is therefore a possibility there are quite a few other chassis the same time to consult others and find out what BPW say or don't say

Not sure yet whether it is a design flaw or failure. 

So many opinions to gather, chassis manufacturer, caravan manufacturer, insurer etc..

It's happened in the last 6 months so not sure what that counts as...

 

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Posted

At present I personally would go with metal fatigue due to excessive stresses this obviously needs proving (ie needs a large number of cases to prove) if it can be proved otherwise it may be a batch of poor quality metal 

there are many factors to be considered but not necessarily by you

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Posted

You still haven't said what is actually bolted to it...

In addition does the part bolted to it have an identical dome that fits inside the one you've pictured?

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Posted

Here are two pics which locatethe previous 2 pics of the chassis cracks.

They are behind the axle on both sides of the caravan.

 

LeftBehindAxleSmall.jpeg

RightBehindAxleSmall.jpeg

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Posted

So the axle is bolted to it?

When a dome like that is formed in metal it stretches and stresses the metal - you should not bolt anything to it unless there is a supporting dome in the part being bolted to it.

If there is no supporting dome in the part being bolted to it then the dome will fracture at it's weakest point i.e. where it has fractured on yours.

If, as it would be suggested by your photos, it is the axle then I'd say it is a BPW fault and they should make right (bearing the last paragraph in mind)

Had it been a motor mover attached to it then it would be your responsibility

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Posted

Here are two pics which locatethe previous 2 pics of the chassis cracks.

They are behind the axle on both sides of the caravan.

 

LeftBehindAxleSmall.jpeg

RightBehindAxleSmall.jpeg

You need to contact BPW as only  they are able to deal with a 10 year old chassis.  You may get some help if they think it is a manufacturing fault which  does appear to be the case.  Unfortunately, it seems  the body would need to be removed and  new side members fitted and it is doubtful BPW would go that far.  However, despite the very light construction of the chassis members they may be able to do a repair.

 

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