Welcome to 911UK
The only place for Porsche, 911uk is the definitive enthusiast and resource site for the Porsche 911.
Registration is fast, simple and absolutely free, so join up today for full access to the site and benefit from latest member offers.

Porsche Classifieds
Sell Your Porsche on 911uk
Create a Free Classified Advert
Search Ads
Classified Adverts FAQ
Trade Classified Information
Buyer & Seller Fraud Protection
Consumer Rights Act
Pre Purchase Inspection (PPI)
Porsche Car Sourcing
Porsche Cars Wanted
Official Porsche Centre Reviews
Model
Stock
Porsche 911
992 : 2019- 0
991 : 2011- 24
997 : 2004- 65
996 : 1997-2005 32
993 : 1993-1998 4
964 : 1989-1993 2
Carrera 3.2 : 1983-1989 2
Carrera SC : 1977-1983 2
930 Turbo : 1975-1989 1
Early 911 : 1964-1977 1
Porsche Other Models
Classic : 1950-1965 0
Boxster : 1997- 31
Cayman : 2005- 21
Cayenne : 2003- 6
Macan : 2014- 6
Panamera : 2009- 0
912-914-924-928-944-968 1
959 - CarreraGT - RaceCar 0
Car Parts For Sale & Wanted
Other Items For Sale & Wanted
Wheels Tyres For Sale & Wanted
Number Plates For Sale Wanted

Porsche Services
Porsche Body Shop Repair
Paint Protection & Wrapping
Porsche Classic Insurance
Porsche Classic Parts
Porsche Classic Restoration
Porsche Design Collection
Porsche Engine Gearbox Rebuild
Porsche Heritage & History
Porsche News
Porsche Picture Gallery
Win a New Porsche 911

Porsche Parts
Body Parts, Body Styling
Brakes, Clearance
Electrical, Exhausts
Engine Cooling, Engine Electrical
Engine Rebuild, Heating Cooling
Interior Incar, Lighting
Rubber Seals, Service Parts
Steering, Suspension
Transmission, Workshop Tools
Early 911, 911 - 930, 928 - 968
964 - 993, 996 - 997, Boxster
Cayman, Cayenne, Panamera

Porsche Model Range
911 [992] 2018-Current
Porsche 911 [992]
911 [991] 2011-2019
Porsche 911 [991]
911 [997] 2004-2012
Porsche 911 [997]
911 [GT] GT1-GT2-GT3
Porsche 911 [GT]
911 [996] 1997-2005
Porsche 911 [996]
911 [993] 1993-1998
Porsche 911 [993]
911 [RS] RS-RSR
Porsche 911 [RS]
911 [964] 1989-1993
Porsche 911 [964]
911 3.2 1983-1989
Porsche 911 3.2 Carrera
911 SC 1977-1983
Porsche 911 SC
911 [Early] 1964-1977
Porsche 911 [Early]
Boxster & Cayman
Porsche Boxster & Cayman
Cayenne & Panamera
Porsche Cayenne & Panamera

911uk Site Partners

Post new topic   Reply to topic
Author Message
timbo1811
Silverstone


Joined: 13 Dec 2016
Posts: 129
Location: Dorset


PostPosted: Tue Dec 03, 2019 2:45 pm    Post subject: misfire Reply with quote

So with perfect timing the 911 just started misfiring, It did it awhile back on a damp day but has been good for a year or so. I'm thinking coil packs, I'm sure I can hear that click you get with an HT leak. My question is are there any variations in type of coil pack fitted, I can see there are different makes. Any help would be appreciated,particularly as to how difficult it is, I've spannered all my life but am getting to the age when I lack confidence, I have done the water pump and all the road springs on this car.
_________________
Lotus Elan, Lotus Elan +2, MGA Mk11, TR4, 230 Compressor, 320 coupe, 944, Boxster 2.7, 997.1(current), VFR 1200, CBR 1100 Blackbird
 
  
View user's profile Send private message
   
Phil 997
Le Mans
Le Mans


Joined: 05 Dec 2015
Posts: 15551
Location: Bournemouth,Dorset

2009 Porsche 997 Carrera 4S

PostPosted: Tue Dec 03, 2019 3:28 pm    Post subject: Reply with quote

Tim, does sound like a coil pack thats cracked and damp days are triggering it. Personally I would only use BERU as some of the cheaper makes are not very good .

Have a look around at prices but I found auto doc always quite reasonable
at £24 each inc vat

https://www.autodoc.co.uk/car-parts/ignition-coil-10250/porsche/911/911-convertible-997/19159-3-8-carrera-4s?sort_supplier%5B0%5D=beru
_________________
911 Owners,Some Invest In The Future,
Others Enjoy The Moment Today.
 
  
View user's profile Send private message
   
timbo1811
Silverstone


Joined: 13 Dec 2016
Posts: 129
Location: Dorset


PostPosted: Tue Dec 03, 2019 4:48 pm    Post subject: Reply with quote

Hi Phil thanks for that, however, when I put in my car details, 3.6, the price is £34 I thought they were the same. Anyway, think I've lost my bottle to do the job myself, so will probably trailer it to my local indie.
_________________
Lotus Elan, Lotus Elan +2, MGA Mk11, TR4, 230 Compressor, 320 coupe, 944, Boxster 2.7, 997.1(current), VFR 1200, CBR 1100 Blackbird
 
  
View user's profile Send private message
   
Phil 997
Le Mans
Le Mans


Joined: 05 Dec 2015
Posts: 15551
Location: Bournemouth,Dorset

2009 Porsche 997 Carrera 4S

PostPosted: Tue Dec 03, 2019 4:51 pm    Post subject: Reply with quote

Maybe get James round to do it at yours mate. and yes I also thought the coils were the same for the M96 and M97 engines Question Dont know

I put in the info for the 3.6 coupe and it was still £24 check again mate

https://www.autodoc.co.uk/beru/7891642
_________________
911 Owners,Some Invest In The Future,
Others Enjoy The Moment Today.
 
  
View user's profile Send private message
   
timbo1811
Silverstone


Joined: 13 Dec 2016
Posts: 129
Location: Dorset


PostPosted: Tue Dec 03, 2019 7:06 pm    Post subject: Reply with quote

James??
_________________
Lotus Elan, Lotus Elan +2, MGA Mk11, TR4, 230 Compressor, 320 coupe, 944, Boxster 2.7, 997.1(current), VFR 1200, CBR 1100 Blackbird
 
  
View user's profile Send private message
   
deMort
Dijon


Joined: 21 Mar 2015
Posts: 7573
Location: Brighton


PostPosted: Tue Dec 03, 2019 7:17 pm    Post subject: Reply with quote

Misfiring when damp is a classic symptom of a cracked coil .. it might not be that but i would certainly lean towards it being a coil .

the coils have been modified .. much bigger than the previous incarnation and in some cases are a struggle to fit .. heat shields on certain models cant be refitted with this new type .

Link here for the type that's fitted these days .. seems cheap to me but what do i know Dont know

https://www.buycarparts.co.uk/beru/7891642?gshp=1&gclid=EAIaIQobChMIrKH8gJWa5gIVw7TtCh0hQw4pEAQYBSABEgK6n_D_BwE
_________________
.

My Daughter's Crowdfunding has hit the target .

Thank you all so Very much .

She's not going until july 2020 though .



Mechanic

7pm - 9pm

Now At An Indy.
 
  
View user's profile Send private message
   
timbo1811
Silverstone


Joined: 13 Dec 2016
Posts: 129
Location: Dorset


PostPosted: Tue Dec 03, 2019 7:28 pm    Post subject: Reply with quote

Thanks deMort
_________________
Lotus Elan, Lotus Elan +2, MGA Mk11, TR4, 230 Compressor, 320 coupe, 944, Boxster 2.7, 997.1(current), VFR 1200, CBR 1100 Blackbird
 
  
View user's profile Send private message
   
Phil 997
Le Mans
Le Mans


Joined: 05 Dec 2015
Posts: 15551
Location: Bournemouth,Dorset

2009 Porsche 997 Carrera 4S

PostPosted: Thu Dec 05, 2019 7:25 pm    Post subject: Reply with quote

timbo1811 wrote:
James??


Sorry Tim thought I had given you James number before

James from JMBautomotive he's mobile and fully time served porsche tech , he can do it at your home/work or if he needs a ramp he will take it do it and bring it back . and his prices are considerable less than an indy or opc .

he can either supply and fit or just fit your supplied bits .

based in Ferndown and covers our area , lots of the guys round here use him inc me.

https://www.facebook.com/jamesjmbautomotive/
_________________
911 Owners,Some Invest In The Future,
Others Enjoy The Moment Today.
 
  
View user's profile Send private message
   
timbo1811
Silverstone


Joined: 13 Dec 2016
Posts: 129
Location: Dorset


PostPosted: Thu Dec 05, 2019 7:45 pm    Post subject: Reply with quote

Thanks Phil, will have to be next time now as have the car booked into Marque 21 on tuesday.
_________________
Lotus Elan, Lotus Elan +2, MGA Mk11, TR4, 230 Compressor, 320 coupe, 944, Boxster 2.7, 997.1(current), VFR 1200, CBR 1100 Blackbird
 
  
View user's profile Send private message
   
Display posts from previous:   
Post new topic   Reply to topic   All times are GMT - 12 Hours
Page 1 of 1

 
Jump to:  

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