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Author Topic: Guess the spark plug’s age  (Read 3267 times)

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Osprey

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Guess the spark plug’s age
« on: 11 October 2010, 22:12:07 »
Don’t know why I decided to replace my plugs today – the service book shows they were done only 7K ago.  Glad I did though! 

The plugs don’t look too bad for colour, but the centre electrodes are eroded to below the level of the ceramic insulation.  I can’t see this happening in just 7000 miles so I think somebody at the garage must be telling porkies.  And one of the rubber plug shrouds is missing completely!   :o  Can’t believe the spring hasn’t slipped off or started arcing. 

So how old do you reckon this is?



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tunnie

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Re: Guess the spark plug’s age
« Reply #1 on: 11 October 2010, 22:21:44 »
my last ones looked better than that after 40k!
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albitz

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Re: Guess the spark plug’s age
« Reply #2 on: 11 October 2010, 22:23:43 »
Probably put in at the factory. ;).........having said that, they may have to many electrodes to be factory fit. :-/
« Last Edit: 11 October 2010, 22:40:08 by albitz »
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Kevin Wood

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Re: Guess the spark plug’s age
« Reply #3 on: 11 October 2010, 22:23:49 »
Quote
So how old do you reckon this is?

How old's the car? ;)

Nice macro shot, by the way. :y

Kevin
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cem_devecioglu

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Re: Guess the spark plug’s age
« Reply #4 on: 11 October 2010, 22:24:13 »
 :o

7k miles no way ..  10x times may be ;D ;D
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cem_devecioglu

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Re: Guess the spark plug’s age
« Reply #5 on: 11 October 2010, 22:24:44 »
Quote
Quote
So how old do you reckon this is?

How old's the car? ;)

Nice macro shot, by the way. :y

Kevin

agreed..
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aaronjb

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Re: Guess the spark plug’s age
« Reply #6 on: 11 October 2010, 22:27:57 »
Quote
Quote
Quote
So how old do you reckon this is?

How old's the car? ;)

Nice macro shot, by the way. :y

Kevin

agreed..

Yeah.. I was hoping for some Exif information so I could tell what camera took it  ;D

(Oh and to be on topic - wow that plug is mullered!)
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Kevin Wood

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Re: Guess the spark plug’s age
« Reply #7 on: 11 October 2010, 22:31:52 »
Quote
:o

7k miles no way ..  10x times may be ;D ;D

And the rest, I reckon. Service interval is 80k for the 4 electrodes. Mine looked pretty well untouched at 40k, with half of that on LPG.

Kevin
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Osprey

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Re: Guess the spark plug’s age
« Reply #8 on: 11 October 2010, 23:01:13 »
Allegedly replaced at 39K, 55K, 84K, 95K and 110K, according to the service stamps.  Betty Swallocks if you ask me.  The car is now at 117K. 

They are NGK plugs – does this mean that they can’t be original?  In which case I guess they must be the 39K ones.  No idea why the garage would even bother to tick such frequent changes. 

FWIW I’ve used the two electrode GM ones – but they will probably be replaced in just a couple of hundred miles when I do the cam cover gaskets, assuming they are well contaminated by then. 

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Osprey

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Re: Guess the spark plug’s age
« Reply #9 on: 11 October 2010, 23:08:37 »
Oh, and the camera is a bog standard Fujifilm point and shoot idiot-proof job.  I know nothing about cameras but it calls itself J110w. 

And all I did was point and shoot!   :)  (and crop in PSP)

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waspy

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Re: Guess the spark plug’s age
« Reply #10 on: 12 October 2010, 07:37:24 »
So much for a stamped up service record :(
One more reason why i do my own services & repairs :y
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Marks DTM Calib

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Re: Guess the spark plug’s age
« Reply #11 on: 12 October 2010, 07:53:27 »
What make and type were the plugs, some plugs have a slightly recessed centre electrode as standard
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Marks DTM Calib

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Re: Guess the spark plug’s age
« Reply #12 on: 12 October 2010, 07:54:16 »
I guess your 2.6 is around a 2001?
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Osprey

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Re: Guess the spark plug’s age
« Reply #13 on: 12 October 2010, 12:43:51 »
The plugs are NGK BKR6EQUP.  Now you mention it the four electrode arms don't reach over the cenrte insulation, but just up to it. 

The car is indeed 2001, October I believe.  I know you have a memory for detail but can you recall which plug was used in which year?   8-)



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kcl

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Re: Guess the spark plug’s age
« Reply #14 on: 12 October 2010, 13:00:38 »
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I guess your 2.6 is around a 2001?

Why? Is there something we, owners of MY2001 2,6, should be worried about? Other than smoke on start-ups...
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