[928uk] Thrust Bearing Failure

[go928]

Hi Marton,
 
The big sprockets.
 
Regards.
 
Graham.

-----Original Message-----
From: 928uk-bounces at lists.928.org.uk [mailto:928uk-bounces at lists.928.org.uk]
On Behalf Of marton
Sent: 19 February 2012 17:52
To: 928uk at lists.928.org.uk
Subject: Re: [928uk] Thrust Bearing Failure


Very sorry to hear this.

I think it will be hard to go after the firm because Porsche never really
admitted the flex plate was the cause of the TBF so where is your expert
witness?

About cam belt rollers are damaged due to overtensioning of the belt - which
rollers do you mean exactly?



 "On 19/02/2012 18:19, go928 wrote: 

Late last year my S4 auto suffered terminal tbf - the engine is probably a
write-off.  

Briefly, I've owned the car about 10 years, covering about 6,000 miles a
year.  She has 130k on the clock.  Throughout the last 10 years she has been
maintained and serviced annually by the same firm and a flex plate check has
been specified at each service.  Over the last couple of years I have had a
series of problems with difficulty starting, stalling and uneven running.
She has been back to the specialist on a number of occasions and fuel pump,
MAF and ISV among other things have all been replaced.  Each time the
immediate problem has been resolved, but the car was not running quite
right, although it was hard to say precisely why.  I now suspect this was
early symptoms of the pending failure.

My view is that the Porsche specialists who look after the car should bear
some responsibility, but they do not agree and have washed their hands of my
situation.  Maybe I am not being as objective as I should be so I would
welcome any thoughts.

My reasons for blaming the firm who looked after the car are: 

*	Everything I have read about tbf seems to suggest it is unheard of
where the flex plate has been checked and released regularly. 

*	The engine finally seized only about 2,000 miles after the last
service/flex plate check. 

*	When the tbf was diagnosed (by a different firm) the pinch bolt was
only finger tight. 

*	The firm admit that they do not change the pinch bolt when they
check the flex plate. 

*	The cam belt rollers are damaged due to overtensioning of the belt.
(As they have changed the cambelt twice since I acquired the car, to my
mind, even if they didn't cause the damage they should have spotted it and
changed the rollers). 

*	ATF in the diff. 


The last two points have no direct bearing (ha ha) on the thrust bearing
failure, but do indicate a questionable level of care.

My questions: 

*	Is it fair to pursue the firm for a contribution towards the cost or
should I accept (as they claim) that the thrust bearing can fail at any
time, even if the flex plate is regularly checked? 

*	If I do have a claim, any thoughts on how best to get them to do the
decent thing?  I will take them to court if necessary but would prefer to
avoid all the hassle if possible. 


Thanks in advance. 

Graham 
(91 S4 auto) 


 

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