Only £260 to put that right and alloys usually need refurbing at some point. Very, very, very minor detail compared to the engine work most don't have.
Yep, agree with this.
daz parker Spa-Francorchamps
Joined: 12 Aug 2015 Posts: 301
Posted: Sat Oct 07, 2017 3:48 pm Post subject:
It was a general comment about the wheels not the car for sale and it been a negative about the car.
LR75 Newbie
Joined: 30 Oct 2014 Posts: 36
Posted: Mon Oct 09, 2017 11:29 am Post subject:
Nice car, had all the big stuff done. Good price.
FYI, I paid £25k 3 year ago for a Hartech repaired C2S on 93,000 miles. Now on 103,000 not missed a beat. _________________ LR75
Hartech 2005 997.1 C2S
Black, Black with Black
Manchester
pothole Monza
Joined: 04 Oct 2011 Posts: 177 Location: Location Location
Posted: Mon Oct 09, 2017 5:16 pm Post subject:
Marky911 wrote:
Autofarm offer everything Hartech do and the owner doesn't sit scaring people on internet forums all day. That's who I'll use if I ever have to.
Not true on either count.
I pass no judgement on who does the better rebuilds, but they are very different rebuilds. Neither Hartech nor Autofarm offer everything that the other offers.
Baz from Hartech provides a lot of use info. Only cranks would think he sits around intending to scare people. In reality, he bites his tongue an awful lot. _________________ 2006 Cayman S
jaychief Trainee
Joined: 17 Jan 2017 Posts: 74
Posted: Tue Oct 10, 2017 12:34 pm Post subject:
This is the bore scope for are 911 2007, that I had done as part of the deal !!! lucky escape ???
IMG_7785.jpg
Description:
Filesize:
63.75 KB
Viewed:
2883 Time(s)
daz parker Spa-Francorchamps
Joined: 12 Aug 2015 Posts: 301
Posted: Tue Oct 10, 2017 12:38 pm Post subject:
Yeah I've read your post and you couldn't have done it at a worse time!
I was just about got my confidence back sorted ha ha.
jaychief Trainee
Joined: 17 Jan 2017 Posts: 74
Posted: Tue Oct 10, 2017 12:41 pm Post subject:
Daz, am in the same boat as you, this is a massive issue for me !!!!
jaychief Trainee
Joined: 17 Jan 2017 Posts: 74
Posted: Wed Oct 11, 2017 11:25 am Post subject:
daz parker wrote:
Yeah I've read your post and you couldn't have done it at a worse time!
I was just about got my confidence back sorted ha ha.
Daz, have you been looking for long?
daz parker Spa-Francorchamps
Joined: 12 Aug 2015 Posts: 301
Posted: Wed Oct 11, 2017 8:25 pm Post subject:
Yes and no.
I've been wanting a 911 for years so started reading up on them a bit and each time I found an excuse not to get one, kids too small, kids little bit bigger, bore scoring, ims exploding blah blah blah.
I said to myself when I sell this car I'm getting one, so that's gone and I'm hopefully picking one up Sunday. The kids will like it or lump it, I do have a family so it's not too bad but if I want to get use of of it the kids have to fit.
I decided to look for one with a hartech rebuild as I'm a bit of a stress head and it might of played on my mind. I'm very mechanical sympathetic though so it wouldn't be driver error.
Alex Le Mans
Joined: 06 Mar 2014 Posts: 17120 Location: The Ribble Valley, Lancashire
You must remember the major rule of thumb:
1. don't go above 3k rpm until oil fully up to temp. (not water temp. gauge) - no gauge but when it's up to temp. pressure gauge is around 1 - 1.5 bar at tickover,
2. No sudden change of driving that may create sudden thermal damage to the right hand block - traffic light GPs when it's been sat idling for minutes, etc.
and most importantly:
3. Once up at temp and everything's pumping round as it should be..........drive it like you ****ing pants are on fire!!!!!!!!
DO NOT drive these cars like Miss Daisy, labouring the engine, tootling around in high gears under 2k rpm. They're designed to perform between 4k - 7k rpm, nothing less!!!!!
Follow these basic rules and fall in love with the best car you've ever owned _________________ 2000 Manual 996 C4 Arctic Silver Convertible
Frenchmeister Barcelona
Joined: 24 Feb 2014 Posts: 1334 Location: Beautiful Cumbria.
^^^^^As Above ^^^^^ _________________ 997 Carrera 2S 54 Arctic Silver
944 Turbo S 88 Solid Black
BMW X3 2.0D M Sport 06 Silver Grey
BMW E46 330i touring M Sport 05 Imola Red 2
daz parker Spa-Francorchamps
Joined: 12 Aug 2015 Posts: 301
Posted: Thu Oct 12, 2017 2:53 pm Post subject:
Yeah I'd read these done like been launched from the traffic lights which is what I assume most do?!?
pothole Monza
Joined: 04 Oct 2011 Posts: 177 Location: Location Location
Posted: Thu Oct 12, 2017 3:30 pm Post subject:
Thrashing a cold engine is obviously not a good thing in general, but I don't think it's a factor for bore scoring.
It almost always happens to the one particular side of the engine - the one with more cooling issues. If thrashing a cold engine was a significant factor in bore scoring, you'd see a much more even distribution of scoring on both banks rather than it almost always being the hotter bank and indeed the hotter cylinders on that side of the engine. _________________ 2006 Cayman S
Alex Le Mans
Joined: 06 Mar 2014 Posts: 17120 Location: The Ribble Valley, Lancashire
The cooling on bank 2 is not as efficient as bank 1. Therefore, creating a dramatic change in temp. Eg. Thrashing when cold, will create bank 2 to overheat and score. _________________ 2000 Manual 996 C4 Arctic Silver Convertible
Chris_in_the_UK Estoril
Joined: 19 Mar 2014 Posts: 3588 Location: Harrogate
Posted: Thu Oct 12, 2017 5:35 pm Post subject:
pothole wrote:
Thrashing a cold engine is obviously not a good thing in general, but I don't think it's a factor for bore scoring.
It almost always happens to the one particular side of the engine - the one with more cooling issues. If thrashing a cold engine was a significant factor in bore scoring, you'd see a much more even distribution of scoring on both banks rather than it almost always being the hotter bank and indeed the hotter cylinders on that side of the engine.
Lol _________________ 2006 Cayman S PCCB's
deMort Dijon
Joined: 21 Mar 2015 Posts: 7575 Location: Brighton
Posted: Thu Oct 12, 2017 6:21 pm Post subject:
Some of the very few gen 2 engines with damage have been attributed to thrashing when cold .. the piston heats up faster than the liner causeing patrial seizure due to expansion rates of both piston and liner .
Not going to comment on Gen 1 .
Btw Chris .. not seen you in ages .. hope everything is ok . _________________ .
My Daughter's Crowdfunding has hit the target .
Thank you all so Very much .
She's not going until july 2020 though .
7pm - 9pm
Now At An Indy.
bazhart Approved Trader
Joined: 20 May 2009 Posts: 984 Location: Bolton Lancashire
Posted: Sun Oct 15, 2017 8:26 am Post subject:
In my earlier post I disagreed that "all engine builders are the same".
This season in the top 3 UK racing Championships for road based M96/7 cars those with Hartech engines to our standard specifications and built by us have won all 3.
BRSCC Boxster Championship - Won, PCGB class 1 and 2 Championship - Won, PCGB overall Championship Won, Team event Won.
All engines lasted the whole season with one winter rebuild providing power, performance and reliability and most of the other Podium places were with our engines built by us or built to our specification with our parts built by others.
That is some record - and hopefully fully answers the previous claims - enough said.
To answer a couple of recent comments - Bank 2 has the thrust face of the piston on the top and bank 1 on the bottom. From cold the oil has dripped off the top of both pistons leaving bank 2 more dry on start-up. also the coolant enters both blocks at the bottom. There is limited flow and it flows slowly up the cylinders - so bank 2 always has the top of the piston thrust face hotter than the thrust face of the pistons in bank 1 since the coolest coolant hits the thrust face of bank 1 pistons first and bank 2 pistons last and this is a differential in the oil temperature and the oil film thickness that results that helps prevent loose silicon particles digging into the piston and cylinder bore.
Low revs with high power or torque present the greatest piston face loads on the cylinder bore - higher revs do not so Alex is right -- refrain from high power from cold but when hot use revs and enjoy it.
Gen 1 piston scoring is caused by silicon particles release from the cylinder matrix attacking one side of the piston on the thrust face. Gen 2 scoring is caused by seizures on both sides of the piston because it has expanded more than the bore from cold influenced by tighter build bore clearances and some shrinkage of the cylinder bores in some engines in the thrust direction (where the piston is biggest) over long periods of time
All times are GMT - 12 Hours Goto page Previous1, 2, 3, 4
Page 4 of 4
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum You can attach files in this forum You can download files in this forum You cannot post calendar events in this forum
![Porsche 911 [992]](./images/models/Model-992.gif)
![Porsche 911 [991]](./images/models/Model-991.gif)
![Porsche 911 [997]](./images/models/Model-997.gif)
![Porsche 911 [GT]](./images/models/Model-GT.png)
![Porsche 911 [996]](./images/models/Model-996.gif)
![Porsche 911 [993]](./images/models/Model-993.gif)
![Porsche 911 [RS]](./images/models/Model-RS.gif)
![Porsche 911 [964]](./images/models/Model-964.gif)
![Porsche 911 [Early]](./images/models/Model-Early.gif)
That's who I'll use if I ever have to. 
Eh?
