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

DIY servicing - Spark plugs and tubes

C

Corpulent Illegitimate

Silverstone
Joined
7 Sep 2014
Messages
109
Hi all. Just a query about spark plugs before I decide to do them myself or add to the jobs I leave to a specialist. I'm a competent DIYer on routine service stuff/brakes etc. but still a bit new to the 911.

The plug position looks a bit fiddly without a lift TBH, also the plugs themselves look deeper than any socket I have in the toolbox. Any tips? Also do the spark plug tubes have to be removed and inspected each time?

Cheers
 
what car?
 
I had my plugs changed at last years service. My mechanic said they were shot at and hadn't been changed for years. I've not done it so can't comment on how easy, but I've removed all my coil packs and refit them and it took about 40 minutes. My coil pack heat sheilds are missing though. Might want to take them off first.
 
The tubes sometimes need new seals and can be easily replaced with the plugs removed, fit new seal if you do replace them. All the plugs and coil packs are easy to remove apart from cylinder 1 and 4 where you will need to take the coil pack body from the extension to remove and fit.

You can do this job easily using axle stands and buy yourself a spark plug socket, it has a rubber insert which grips onto the spark plug to help remove it from the tube.
 
Thanks all. It's this "long life" plug thing I can't get my head around, so many times plugs get left in for years and then weld themselves solid. Been planning the 996's imminent service so had a look in the history wallet and last plug change was 5 years/30k ago. That's plenty long enough for me even if short of the 60k interval on the service schedule.

Out of interest what function do the plug tubes serve? Insulation against shorting or heat? Or just oil contamination?
 
I had a spark plug breakdown and cause a misfire after only 10k miles.

The tubes are just extension tubes to stop oil seeping into the plugs and coil packs, the tube needs to be long for the spark plugs to be seated in the combustion chamber but as it is twin cam it has to pass between the cams to get there. Same layout as an overhead cam engine but obviously ours are sideways on.
 
Do mine every year - just done this years swap (yesterday). Went for Denso iridium this time (for a change really and they were a good deal).)
 
Thanks all. Well I'm going for it this weekend, between Opie oils and Euro Car parts I can get a top-to-toe mega service done with quality parts for 70 quid less than a basic oil change/inspection from an untried indie. I don't mind paying to get difficult stuff done that I can't but not things that were considered part and parcel of ownership not that long ago, have we all gone soft? The car had a multi point PDI 11 months ago when we bought it and at 3k miles a year it hopefully shouldn't worry a dealer for a little while yet. Time to get to know the car properly 8)
 
Changed all today, not the hardest job ever but bloody time consuming! 6 hours in all with the rest of the filters/oil. At least it didn't rain until it was all finished!

I found that 4 out of 6 old plugs were in pretty much finger tight for some reason? I'm paranoid about seized plugs and never tighten them up as far as some people do, but the crush washers need to be seated surely. :?


 
You must log in or register to reply here.

Similar threads

M
997.2 Spark Plug Change
2
Replies
23
Views
7K
deMort
D
squelch
What's a Porsche stamp worth? Is it time to go Indy? Or DIY?
Replies
13
Views
3K
Luddite
L
R
  • Locked
Sold 911 (996) 2002 Carrera 2 Tiptronic S Cabrio, RMS & IMS done, FSH 69k miles, £20,000 ono
Replies
1
Views
843
RichNotts
R
infrasilver
Cayenne 4.5 V8 emissions problems, failing MOT
Replies
13
Views
3K
infrasilver
infrasilver
M
Annual service - what is needed?
Replies
4
Views
2K
MeltonMowbray
M
C
  • Locked
Sold 996 C2 Manual, cable throttle - 1999
Replies
4
Views
2K
gizlaroc
gizlaroc
P
996 As a heavily used daily - would I be mad?
2
Replies
18
Views
2K
PGN
P
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
124,563
Messages
1,441,544
Members
48,979
Latest member
Lb456

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