What's new
Porsche 911 UK Enthusiasts Online Community Discussion Forum GB

Welcome to the @Porsche911UK website. Register a free account today to become a member! Sign up is quick and easy, then you can view, participate in topics and posts across the site that covers all things Porsche.

Already registered and looking to recovery your account, select 'login in' and then the 'forget your password' option.

Welcome to Hartech, the UK's leading Independent Porsche engine specialists, located in Bolton, UK

Recommended Engine Specialists

ras62 said:
Almost guaranteed that exhaust valve guides will be toast at 100k just as they are on the majority of 964's. With the bottom covers removed it is easy to test for excessive valve stem movement.
Other than this these engines are very robust. Timing can slip depending on what cam fixings are used. RS flywheel and clutch is a nice mod which really livens the car up although its not for everyone, especially if you do lots of town driving.
When comparing quotes, make sure new headstuds are included in the price, it makes a big difference to the bill.
Click to expand...

I've had the lower covers off recently when I switched to billet, is the slop through wear noticeable? They'll be coming off again to hopefully nail this one leak and I'd be keen to know what type of tolerance is acceptable.
 
Are the valve guides a full strip down job once the engine is out or just cam covers off? Excuse ignorance but are exhaust outlets just on bottom banks?
 
Yes the heads need to be removed which is all part of a top end overhaul. With a large scredriver down the side of the spring on a closed valve you will see the top of the valve move. Anything other than tiny movement (less than a mm?) indicates guide wear.
Danny at U11 is THE man for geo setup btw.
 
What are the timing chain and tensioner replacement schedules?
I did the gasket covers couple of years ago and got to view them but it was a home based strip down with no capacity to change them.
 
There is no schedule for replacement of the chains or the tensioners. Chains can only be replaced on a full rebuild with splitting the bottom end but they are bulletproof. Tensioners are oil filled and again dont fail. Chain guides can wear with miles but are easy replaced without need of a top end rebuild and even then its not essential.
 
Engine Builder

I would recommend Neil Bainbridge @ bs Motorsport in Wescott Venture park, Nr Aylesbury.

He's the best.
 
Had my gearbox rebuilt by the lads at Unit11 in Warrington, the box isn't in the car yet so can speak of the job itself yet but they were certainly good lads to deal with and very thorough.

Trev
 
Another year gone!

This now looks to be on the cards early 2019.
Valve guides are worn so top end will be redone.
Unit 11 showing ceased trading but have re-emerged locally so still a possibility.

Sports and classic - has anyone used these as they have also been recommended for air cooled work?
 
Northway Porsche.

Been in business for 25 years and you will struggle to find a negative review anywhere.

IMHO so many independants build reputations via PR driven from a few individuals whom are vocal on forums, making them flavour of the month, only for them to be here one minute and gone the next leaving you with zero support going forward, SVP as an example.
 
unit11 ceased trading as the owner of the business, rodger passed away. Johnny has opened up as unit11 ltd as a sole trader in his own right now, working out of the headshop round the corner. mine is in with him this week..
 
Johnny's contact / Unit Eleven Ltd is 07522 976034 until the old number is transferred across.
 
You must log in or register to reply here.

Similar threads

9
Fixing rust bubbles in the rear arch - body shop recommendations in near Woking/Guildford?
Replies
4
Views
697
maldren
M
ScottMc91
996.1 C2 suspension refresh recommendations
2
Replies
19
Views
2K
911UK
911UK
S
Missing my 997 since it's been gone....
Replies
3
Views
722
Mac68
Mac68
M
2012 Cayenne Turbo - engine sound advice
Replies
0
Views
597
MrB
M
E
3.2 engine and 915 Gearbox
Replies
2
Views
981
gizlaroc
gizlaroc
L
Looking to hunt down my old 986 - 1997 2.5 tiptronic - reg L80 XST
Replies
4
Views
458
langers1970
L
L
Looking to hunt down my old 986 - 1997 2.5 tiptronic - reg L80 XST
Replies
5
Views
632
langers1970
L
Used Performance Porsche Specialists

Latest posts

New Threads

Porsche Model Range

Porsche 911

Porsche 992: 2018- Porsche 992: 2018- Porsche 991: 2011-2019 Porsche 991: 2011-2019 Porsche 997: 2004-2012 Porsche 997: 2004-2012 Porsche 996: 1997-2005 Porsche 996: 1997-2005 Porsche 993: 1993-1998 Porsche 993: 1993-1998 Porsche 964: 1989-1993 Porsche 964: 1989-1993 Porsche Carrera 3.2: 1983-1989 Porsche Carrera 3.2: 1983-1989 Porsche Carrera SC: 1977-1983 Porsche Carrera SC: 1977-1983 Porsche 930 Turbo: 1975-1989 Porsche 930 Turbo: 1975-1989 Porsche Early 911: 1964-1977 Porsche Early 911: 1964-1977

Porsche Hypercars

Porsche 918 Spyder Porsche 918 Spyder Porsche Carrera GT Porsche Carrera GT Porsche GT1 Porsche GT1 Porsche 959 Porsche 959

Other Current Porsche Model

Porsche Taycan : (2019-0%) Porsche Taycan : (2019-0%) Porsche Macan : 2013- Porsche Macan : 2013- Porsche Panamera : 2009- Porsche Panamera : 2009- Porsche Cayman: 2005- Porsche Cayman: 2005- Porsche Cayenne: 2003- Porsche Cayenne: 2003- Porsche Boxster: 1997- Porsche Boxster: 1997-

Porsche Legacy Models

Porsche 928 Porsche 928 Porsche 968 Porsche 968 Porsche 944 Porsche 944 Porsche 924 Porsche 924 Porsche 914 Porsche 914 Porsche 912 Porsche 912 Porsche 904 Porsche 904 Porsche 550 Porsche 550 Porsche 356 Speedster Porsche 356 Speedster Porsche 356 Porsche 356

Forum statistics

Threads
124,532
Messages
1,441,221
Members
48,943
Latest member
stevemias

porsche insurance porsche parts porsche sales porsche car sales porsche for sale
porsche classic sales porsche tuning porsche sold porsche specialist porsche engine rebuilds porsche driver training porsche car sales porsche exhausts

Community platform by XenForo® © 2010-2024 XenForo Ltd. XenForo theme by xenfocus

www.911uk.com @Porsche911UK THE DEFINITIVE PORSCHE FORUM Copyright © 911UK 2002-2024 All rights reserved.

911uk.com is not associated and is wholly independent of Porsche Automobil Holdings SE, Dr. Ing.h.c.F.Porsche AG, Porsche Cars GB, its subsidiaries and offical Porsche centres. Any word, phrase or graphic that in any way resembles anything to do with the Porsche name or organisation are registered trademarks of Porsche Automobil Holdings SE and Dr. Ing.h.c.F. Porsche AG.

Back
Top