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trig_112
Monza


Joined: 11 Apr 2014
Posts: 162
Location: Northants


PostPosted: Thu Jul 27, 2017 11:38 am    Post subject: Another 'should I change my IMS bearing' thread Reply with quote

Yes, another 'should I change my IMS bearing' thread, but before you all wring your hands, shout at the screen and give the usual replies, hold on a second.

When I bought my car, it had an invoice to say an IMS single row bearing retrofit kit had been installed, along with a new RMS/clutch. All good I thought, the pin is back in the grenade.

But, after seeing a few comments about the LN engineering bearings, I'm not sure the pin is fully secure in the grenade, more like just about in, slowly falling out.

I'm a little worried, because the indy that fitted it thinks the part number on my invoice related to a LN kit, which seem to have a higher failure rate than the original Porsche one.

So, back to the title question. Its been about 10k miles since the LN went in. Should I be looking at getting it replaced?

I'm not expecting the answer to be 'GET IT OUT NOW!', should I be budgeting for it to be done at the next service?
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Martin996RSR
Trainee


Joined: 08 Dec 2016
Posts: 96



PostPosted: Thu Jul 27, 2017 1:42 pm    Post subject: Reply with quote

The problem is that you can't know whether it's on its way out unless you take it out and examine it. I would budget for replacement with a stock bearing, just with the dust cover removed, in 10-15,000 miles' time. Obviously you should carefully examine your oil filter at each service for signs of breakup, but really the best you'll be able to do with this is informed guesswork rather than 'it's definitely on its way out'..
 
  
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955matt
Trainee


Joined: 28 Mar 2014
Posts: 77



PostPosted: Thu Jul 27, 2017 2:22 pm    Post subject: Reply with quote

Just drive the car and dont worry about what might happen.

Very Happy Very Happy
 
  
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Dammit
Montreal


Joined: 23 Sep 2016
Posts: 507



PostPosted: Thu Jul 27, 2017 3:00 pm    Post subject: Reply with quote

Do you have other maintenance tasks that would make sense to be done at the same time? Clutch, AOS, that tensioner you can't get to with the engine in place etc? If so it would make sense to take care of everything at once- if of course the price is acceptable. Otherwise I'd leave it until you do have other tasks to help make sense of the cost.

What's the mileage of the car now?
 
  
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arry
Montreal


Joined: 02 May 2015
Posts: 601
Location: South Essex


PostPosted: Thu Jul 27, 2017 6:20 pm    Post subject: Reply with quote

955matt wrote:
Just drive the car and dont worry about what might happen.

Very Happy Very Happy


That. Just get on with it.

If it goes massive tits up then the monetary risk isn't massive.
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alex yates
Shanghai
Shanghai


Joined: 06 Mar 2014
Posts: 10654
Location: Lancashire

2000 Porsche 996 Carrera 4

PostPosted: Wed Aug 02, 2017 7:34 pm    Post subject: Reply with quote

I'd wait until the opportunity arises (like a clutch change), then have a gander at what's there and take action from there.
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skinny_monkey
Spa-Francorchamps


Joined: 16 Sep 2014
Posts: 301



PostPosted: Wed Aug 02, 2017 8:15 pm    Post subject: Reply with quote

from memory the Americans change their LN bearing every 40k miles
 
  
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955matt
Trainee


Joined: 28 Mar 2014
Posts: 77



PostPosted: Thu Aug 03, 2017 7:58 am    Post subject: Reply with quote

They also voted in Donald Trump Floor Floor Floor Floor Floor
 
  
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trig_112
Monza


Joined: 11 Apr 2014
Posts: 162
Location: Northants


PostPosted: Fri Aug 04, 2017 11:32 am    Post subject: Reply with quote

Annoyingly the clutch and RMS were done at the same time so in theory it is the IMS bearing that needs replacing next.

I got confirmation from the indy that fitted it, it is a LN bearing, replacement schedule is 40k miles, to replace it will be £1800 +vat.

It was done 13k miles ago, so leaving it a few years shouldn't be a problem. As suggested, leave it until something else needs doing, like the dreaded brake pipe corrodes and deal with it when the engine and box is dropped.
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alex yates
Shanghai
Shanghai


Joined: 06 Mar 2014
Posts: 10654
Location: Lancashire

2000 Porsche 996 Carrera 4

PostPosted: Fri Aug 04, 2017 11:36 am    Post subject: Reply with quote

1. They ripping you off quoting £1800 to change the bearing.

2. Engine doesn't need dropping to replace the brake pipes if cunifer pipe is used (more superior than the rubbish ones Porsche fit). My mechanic charged me £80 to replace my pipes.
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