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dp400
Trainee


Joined: 30 Jan 2018
Posts: 55



PostPosted: Wed Feb 14, 2018 7:02 pm    Post subject: Modify crank carrier to supply extra oil to both banks ??? Reply with quote

Im thinking of viewing a car thats up for private sale that has had nearly £4.5k of engine work done by Cath Burrows independent Porsche specialist in Wigan in 2014.

Has anyone heard of this garage and can anyone tell me if they have a good rep.

The description of the works carried out are:

Remove engine and gearbox. Strip engine complete. Modify crank carrier to supply extra oil to both banks. Rebuild engine with new seals throughout. Fit new O.E. clutch and new tandem pump. Remove front bumper and fit genuine centre radiator kit. Re gas air con system.

Ive done a google search and cant find anything relating to modifying crank carrier to supply extra oil to both banks. Can anyone tell me if thats a known mod for a 997 and if so is that done to reduce the risk of bore score or is it done for some other reason?

As always any advise you can give to a newbie will be gratefully received.
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infrasilver
Fast & Furious
Fast & Furious


Joined: 04 Oct 2010
Posts: 7761
Location: East Midlands

2001 Porsche 996 Targa

PostPosted: Wed Feb 14, 2018 7:17 pm    Post subject: Reply with quote

Never heard of this mod at all and unsure what it would involve?
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kas750
Estoril


Joined: 31 Mar 2013
Posts: 3998
Location: Chorley lancashire

2006 Porsche 911

PostPosted: Wed Feb 14, 2018 7:25 pm    Post subject: Reply with quote

Cath is a complicated character in so many ways but her technical knowledge is second to none.
Give her a call and if you catch her on a good day she will give you a full and comprehensive run down.
 
  
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pcat
Spa-Francorchamps


Joined: 16 Oct 2013
Posts: 314



PostPosted: Wed Feb 14, 2018 7:26 pm    Post subject: Reply with quote

Im guessing theyve bored out the crank case to increase oil volume around the crank shaft and main bearings

Seems like a good idea if oil starvation is a problem
 
  
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infrasilver
Fast & Furious
Fast & Furious


Joined: 04 Oct 2010
Posts: 7761
Location: East Midlands

2001 Porsche 996 Targa

PostPosted: Wed Feb 14, 2018 7:43 pm    Post subject: Reply with quote

The crank carrier holds the crankshaft central in the crankcases and I'm not sure modifying something this critical without lots of research and development is a good idea and does it rob the bearings of some oil pressure?
I'm guessing the Ladder Casting Modification on the invoice is the crank carrier mod?? Would like to know what they did, nothing at all on Google?

Also why was it rebuilt, sounds like the only work was to carry out this modification, very strange?

I'm also curious why they charged for, 2x crankcase half gaskets (as there is no such thing) and also charged for Loctite 5900 as this is the sealant that does the sealing of the crankcases? Could they mean coolant channel seals?
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Phil 997
Brands Hatch
Brands Hatch


Joined: 05 Dec 2015
Posts: 14283
Location: Bournemouth,Dorset

2009 Porsche 997 Carrera 4S

PostPosted: Wed Feb 14, 2018 7:59 pm    Post subject: Reply with quote

This could be a very interesting thread if more info becomes avail, as already said nothing on the internet about it or what it is designed to achieve. I havent heard anything bad about Cath Burrows and many say shes up there with the best of them.
Now I want to know what this mod is designed to achieve Dont know so will stay here Pop Corn Pop Corn Pop Corn Stay
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alex yates
Brands Hatch
Brands Hatch


Joined: 06 Mar 2014
Posts: 13994
Location: The Ribble Valley, Lancashire

2000 Porsche 996 Carrera 4

PostPosted: Wed Feb 14, 2018 8:00 pm    Post subject: Reply with quote

kas750 wrote:
Cath is a complicated character in so many ways but her technical knowledge is second to none.
Give her a call and if you catch her on a good day she will give you a full and comprehensive run down.


+1!

I called her out of the blue when buying my 996. I'd never heard of her before but chanced picking her brain. We had a really good chat over the phone and she advised me on what to look for and what common problems there was with the 996. It really took me back how helpful she was and how much time she gave me over the phone. If it wasn't for her I may not have made the leap.


.........just don't mention Bradley Wiggins Grin wack

http://www.dailymail.co.uk/news/article-2229533/Bradley-Wiggins-apologises-middle-finger-salute-driver-Cath-Burrows-reveals-shock.html
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Alfaian
Imola


Joined: 12 Mar 2014
Posts: 803
Location: S.wales


PostPosted: Wed Feb 14, 2018 10:47 pm    Post subject: Reply with quote

The question I'm thinking is, why the engine rebuild in the first place?

No mention of cylinder re lining or ims bearing or timing chains etc.

I know I wouldn't pay 4.5 k just for an engine mod when you could put that money toward bullet proofing it .

Strange.
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alex yates
Brands Hatch
Brands Hatch


Joined: 06 Mar 2014
Posts: 13994
Location: The Ribble Valley, Lancashire

2000 Porsche 996 Carrera 4

PostPosted: Wed Feb 14, 2018 11:05 pm    Post subject: Reply with quote

Alfaian wrote:


I know I wouldn't pay 4.5 k just for an engine mod when you could put that money toward bullet proofing it .

Strange.


The 'mod' was the cheap bit looking at the bill. New Clutch, centre Radiator & Tandem Pump swallowed a fair chunk.
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infrasilver
Fast & Furious
Fast & Furious


Joined: 04 Oct 2010
Posts: 7761
Location: East Midlands

2001 Porsche 996 Targa

PostPosted: Wed Feb 14, 2018 11:14 pm    Post subject: Reply with quote

The question is, was this a recommended or requested modification to negate future issues, as this also included a third rad and crank cage mod? These were the only mods that can affect the engine, the rest were just gaskets. clutch and labour (and 15 cans of brake cleaner)
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Phil 997
Brands Hatch
Brands Hatch


Joined: 05 Dec 2015
Posts: 14283
Location: Bournemouth,Dorset

2009 Porsche 997 Carrera 4S

PostPosted: Wed Feb 14, 2018 11:17 pm    Post subject: Reply with quote

infrasilver wrote:
(and 15 cans of brake cleaner)


bet those brakes were bloody clean by the end of it Grin Grin
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alex yates
Brands Hatch
Brands Hatch


Joined: 06 Mar 2014
Posts: 13994
Location: The Ribble Valley, Lancashire

2000 Porsche 996 Carrera 4

PostPosted: Wed Feb 14, 2018 11:21 pm    Post subject: Reply with quote

Phil 997 wrote:
infrasilver wrote:
(and 15 cans of brake cleaner)


bet those brakes were bloody clean by the end of it Grin Grin


I noticed that too. Must be some pro-biotic workplace 'pick-me-up'
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infrasilver
Fast & Furious
Fast & Furious


Joined: 04 Oct 2010
Posts: 7761
Location: East Midlands

2001 Porsche 996 Targa

PostPosted: Wed Feb 14, 2018 11:25 pm    Post subject: Reply with quote

Spray...Snnnnnniiiiiiiifffffff!

We'll call this the Ladder Casting Modification. (dives down a toilet)
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Last edited by infrasilver on Thu Feb 15, 2018 12:32 pm; edited 1 time in total
 
  
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alex yates
Brands Hatch
Brands Hatch


Joined: 06 Mar 2014
Posts: 13994
Location: The Ribble Valley, Lancashire

2000 Porsche 996 Carrera 4

PostPosted: Wed Feb 14, 2018 11:29 pm    Post subject: Reply with quote

infrasilver wrote:
Spray...Snnnnnniiiiiiiifffffff!

Well call this the Ladder Casting Modification. (dives down a toilet)


You've just taken me back 30 years Grey
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Phil 997
Brands Hatch
Brands Hatch


Joined: 05 Dec 2015
Posts: 14283
Location: Bournemouth,Dorset

2009 Porsche 997 Carrera 4S

PostPosted: Wed Feb 14, 2018 11:33 pm    Post subject: Reply with quote

alex yates wrote:
infrasilver wrote:
Spray...Snnnnnniiiiiiiifffffff!

Well call this the Ladder Casting Modification. (dives down a toilet)


You've just taken me back 30 years Grey


Floor Floor Floor
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wasz
Magny-Cours


Joined: 28 Dec 2012
Posts: 2585


1999 Porsche 996 Carrera 2

PostPosted: Thu Feb 15, 2018 8:30 am    Post subject: Reply with quote

alex yates wrote:
Phil 997 wrote:
infrasilver wrote:
(and 15 cans of brake cleaner)


bet those brakes were bloody clean by the end of it Grin Grin


I noticed that too. Must be some pro-biotic workplace 'pick-me-up'


I used 2 cans just doing my clutch.

I suspect if i used it to clean the whole engine in rebuild 15 cans is right. But you can buy it in 5l bottles...
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JohnW997
Newbie


Joined: 23 May 2016
Posts: 30
Location: Spain


PostPosted: Thu Feb 15, 2018 9:23 am    Post subject: Reply with quote

What do you Oil Gurues make of the approved Oil used 10 litres £5.85
Good value or what,,,,,????
 
  
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PeterS
Fuji


Joined: 01 Nov 2009
Posts: 9260
Location: Solihull

2003 Porsche 996 Carrera 2

PostPosted: Thu Feb 15, 2018 10:56 am    Post subject: Reply with quote

JohnW997 wrote:
What do you Oil Gurues make of the approved Oil used 10 litres £5.85
Good value or what,,,,,????


Except the heading says unit price.

If you add up all the right hand column you wont get the subtotal.

It also says VAT @15%! Must have some re-programming required from 2008. They have charged the correct 20% though.
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