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 Post subject: Re: Bore Score
PostPosted: Fri May 08, 2015 1:38 pm 
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Joined: Thu Sep 04, 2014 4:45 am
Posts: 12
Location: Brighton
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£5K seems a good price.

A £25 valve seat broke on mine in March and it cost me £7K :?

Theres more and more bad stories regarding the LN ceramic bearing, what about the latest NSK with the dust cover removed? Soaks in oil when it's off and gets splashed constantly with oil via the chains when it's running. I've fitted this to my last 2 996 engines.

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Officially 'Unluckiest 911 owner in the world'.
5 x 911's and 4 engine failures.

'70 2.2E >| '83 3.0 Carrera >| '75 3.0 Turbo >| '03 2.7 Boxster >| '02 996.2 C2 Cab >| '08 997.2 3.6 PDK

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 Post subject: Re: Bore Score
PostPosted: Fri May 08, 2015 6:29 pm 
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Joined: Fri Jun 26, 2009 7:59 am
Posts: 73
Location: Redditch, Worcs
TIPEC membership: 5448
Car all ok. I took it to Porsche Reading for a trip via Bristol to complete 2nd stage of running in (250miles). First stage was a 30mile trip with an oil & filter change, then my trip to Porsche HQ in Reading.Only niggle was tandem pump pipe was damaged & this affected the brake servo & pedal travel. £50 to fix.

Total spend was in excess of the £5k initially quoted, but this was because I changed all 6 liners & all the bearings & seals, along with the 2 new pistons & IMS shaft & bearing. This was not for the ceramic bearing as it was already the larger bearing which Porsche has fitted after the early 996 & 997 failures.

Massive thank you to Richard at RSR in Bromsgrove who carried out the work for me & cannot recommend him highly enough. His advice, experience was invaluable & he still saved me lots of money. Thank you very very much Richard.

All that remains is for another 500miles to be put on the clock & then will have another oil & filter change & will use nano drive oil from Opie oils. Currently using mineral oil for the run-in process & keeping below 3000rpm.

My initial thoughts are how tight the engine is, it's quicker & more responsive. Before when I hit accelerator there was a delay, yet now it's instantaneous....can't wait to get the next 500miles out of the way.

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Joint RO
2006 997 2S guards red
123500 miles
IPE valvetronic exhaust
Now with rebuilt engine complete, so must try warp speed more often...


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 Post subject: Re: Bore Score
PostPosted: Sat May 09, 2015 9:37 am 
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Joined: Wed Mar 25, 2015 11:55 am
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Pleasure Stuart, although it took longer than expected the result as always is tip top, we try to keep out prices sensible but as you know the majority cost is parts.

I was very pleased with the engine and its performance considering I didn't Rev it over 3500 rpm.

See you next week for the oil service.....


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 Post subject: Re: Bore Score
PostPosted: Mon May 25, 2015 10:18 am 
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Joined: Fri Jun 26, 2009 7:59 am
Posts: 73
Location: Redditch, Worcs
TIPEC membership: 5448
Update.

Car has now covered 1000 miles & after last service is now running on nano oil 5w/40 supplied by Opie oils.

Car is running cooler due to the low temp stat & oil pressure is slightly higher but I'm assured this is down to no leakage in the bore......fuel is better as well.

Car is also a lot more responsive through all of the gears & quicker, as in there used to be a throttle response lag, but now it's instantaneous...well chuffed.

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Joint RO
2006 997 2S guards red
123500 miles
IPE valvetronic exhaust
Now with rebuilt engine complete, so must try warp speed more often...


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 Post subject: Re: Bore Score
PostPosted: Mon May 25, 2015 2:16 pm 
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Joined: Mon Nov 05, 2007 3:04 pm
Posts: 1497
Location: Westcott,Bucks, UK
TIPEC membership: 996
stuey wrote:
Update.

Car has now covered 1000 miles & after last service is now running on nano oil 5w/40 supplied by Opie oils.

Car is running cooler due to the low temp stat & oil pressure is slightly higher but I'm assured this is down to no leakage in the bore......fuel is better as well.

Car is also a lot more responsive through all of the gears & quicker, as in there used to be a throttle response lag, but now it's instantaneous...well chuffed.


Good end to the story, nice one!

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Paul Mabley
Thames Valley Region

2013 Panamera Platinum Diesel, White
Sold April 2013 2009 997 C2S Gen2, Arctic Silver
Sold Aug 2010 2002 996 Carrera, Polar Silver
Sold May 2004 2003 Boxster S, Seal Grey


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 Post subject: Re: Bore Score
PostPosted: Mon Jun 01, 2015 1:32 pm 
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Joined: Sun Feb 16, 2014 9:49 am
Posts: 16
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Glad the end result was well-done.

Can I ask, what oil had you been using before this happened? Mobil 1 0W-40 or something like that?

I'm wondering about going even thicker on Millers CFS (NanoDrive), something like 10W-50.

http://www.millersoils.co.uk/automotive ... Motorsport

Russ


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 Post subject: Re: Bore Score
PostPosted: Mon Jun 22, 2015 7:57 pm 
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Joined: Fri Jun 26, 2009 7:59 am
Posts: 73
Location: Redditch, Worcs
TIPEC membership: 5448
Hi Russ, still running nanodrive CFS 5w 40 & always had Porsche spec'd Mobil before than.

Driving between 300 & 500 mikes per week & even tracked last week. Running very good & oil consumption very very low.

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Joint RO
2006 997 2S guards red
123500 miles
IPE valvetronic exhaust
Now with rebuilt engine complete, so must try warp speed more often...


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 Post subject: Re: Bore Score
PostPosted: Mon Jun 22, 2015 8:04 pm 
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Joined: Sun Nov 04, 2007 8:43 pm
Posts: 12111
Location: Chatham, Kent
TIPEC membership: 4190
This is why mine runs 5W/50 to SL spec. Hartech who have probably rebuilt more in the UK than any others spec a 10W/60 Miller Nanotech oil.

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Jim

http://tipec.net/region_southeastlondon.php

2005 Porsche Cayenne S
2000 Jeep Grand Cherokee Now sold!
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2000 Porsche Boxster S SOLD!
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 Post subject: Re: Bore Score
PostPosted: Sun Sep 09, 2018 3:59 pm 
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Joined: Sun Sep 09, 2018 3:44 pm
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Hello Stuey,

I’m facing the same issue you did but only on cylinder 6.

- How has been your experience so far after rebuilding using west wood cylinders? I have heard that using ductile iron cylinder could cause problems.

- Based on your experience, would you recommend changing all cylinder liners or just the scored one?

I was thinking on just replacing the scored cylinder and that specific piston as everything else is fine.

Also take the opportunity to replace:
Low temp thermostat
Waterpump
Ims
Gaskets

I hope that you can help me out or give me your email to reach you out.

Best


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