Spark plug colour from pinging - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
Ford Forum Ford Forum

» Auto Insurance
» Featured Product
ยป Wheel & Tire Center

Go Back   Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > The Garage - Tech Forums > Engine Specific Tech > Windsor Tech
Register Home Forum Active Topics Photo Gallery Auto Loans Garage Mark Forums Read Auto Escrow

FordForums.com is the premier Ford Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 05-17-2004, 23:39   #1 (permalink)
CK 302
 
Bassman's Avatar
 
Join Date: Feb 2004
Location: Canberra
Posts: 160
confused Spark plug colour from pinging

I am getting a bit frustrated with my ute pinging ever since having a Unichip fitted, its always during WOT and starts around 4200 rpm. I have had it back to Autotech in Fyshwick 3 times so far and every time he has just knocked a bit more timing out of it without putting it on a dyno. Its at the point now where the ute is back to pre-chip power levels but, guess what, it STILL pings. So anyway I have taken a couple of spark plugs out to check and they are covered in a hard white kind of oxidised coating all over the electrode with a dark spot on one side of the insulator core and also black on the thread, I am worried its doing damage to the engine. What can I do ? Does it sound like its running too lean ?
Bassman is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 05-18-2004, 00:16   #2 (permalink)
345kw of V8 Windsor Power
 
EDXR8's Avatar
 
Join Date: Jul 2001
Location: Adelaide
Age: 35
Posts: 2,784
Re: Spark plug colour from pinging

Does it have lots of built up white deposit, or is is just a light coating. Heavy white deposits are a possible sign of oil leaking into the cylinders, which would explain the pinging but hopefully it's not that. Normal spark plugs should have a light brown/grey coating to them. Are you using premium unleaded fuel? I would be demanding they check everything on the dyno, just pulling back the timing a couple of degrees is rubbish considering the money you spent having the chip done in the first place.
EDXR8 is offline   Reply With Quote
Old 05-18-2004, 00:31   #3 (permalink)
CK 302
 
Bassman's Avatar
 
Join Date: Feb 2004
Location: Canberra
Posts: 160
Re: Spark plug colour from pinging

Yes it has a fair bit of built up powder, but the car doesnt use a drop of oil, never has, and i always run on BP ultimate only occasionally standard premium.
I think you are right, i will have to hassle him to check everything on the dyno.
Bassman is offline   Reply With Quote
Old 05-18-2004, 03:31   #4 (permalink)
3FB Educator!
 
B-1B's Avatar
 
Join Date: Mar 2003
Location: Educating some of the brothers
Posts: 527
Re: Spark plug colour from pinging

Check that the vacuum tube to the fuel pressure regulator is connected.
Get it on the dyno and check the air fuel ratio.
__________________
There's a bear in there.
Due to the graphic nature of this programme
listener discretion is advised
B-1B is offline   Reply With Quote
Old 05-18-2004, 05:00   #5 (permalink)
blue66coupe
Guest
 
Posts: n/a
Re: Spark plug colour from pinging

tiny shiny black balls on the insulator show detonation, don't like the sound of white insulator should be light tan to dark tan sounds a bit lean (although if run highway mode will go white as closed loop sets the mix at almost 17:1)
  Reply With Quote
Old 05-19-2004, 00:04   #6 (permalink)
CK 302
 
Bassman's Avatar
 
Join Date: Feb 2004
Location: Canberra
Posts: 160
Re: Spark plug colour from pinging

Quote:
Originally Posted by blue66coupe
tiny shiny black balls on the insulator show detonation, don't like the sound of white insulator should be light tan to dark tan sounds a bit lean (although if run highway mode will go white as closed loop sets the mix at almost 17:1)
Whats funny is that the ute has been pinging for some time now but the plug definately has none of these little balls, only the white powdery stuff, and its only on the metal bits, not the insulator. The unichip guy also reckons that its very hard to tune the engine to run too lean, despite what he says i have been told by too many people that a white plug means too lean.
Had a look today at the chart that shows all the different spark plugs with different problems, and i would swear it just looks like the one that is worn out, cant be though, they have only done 16000 km. Another thing he said was that it could be a small amount of oil leaking through to the cylinder, and maybe changing oil types might help.
Bassman is offline   Reply With Quote
Old 05-19-2004, 00:40   #7 (permalink)
Registered User
 
Join Date: Oct 2003
Location: Sydney
Posts: 692
Re: Spark plug colour from pinging

Why not just change the plugs and see if that works.
It was obviously tuned for/whilst using the BP Ultimate fuel?
TICK4D is offline   Reply With Quote
Old 05-19-2004, 00:48   #8 (permalink)
CK 302
 
Bassman's Avatar
 
Join Date: Feb 2004
Location: Canberra
Posts: 160
Re: Spark plug colour from pinging

I have the uterus booked in next Tuesday, he says he will fit new plugs and re check air fuel ratios and a dyno run, so heres hoping he gets it right after the 4th attempt.
Bassman is offline   Reply With Quote
Old 05-19-2004, 03:52   #9 (permalink)
When 2 T3s are not enough
 
Join Date: Mar 2003
Location: NSW
Posts: 1,934
Re: Spark plug colour from pinging

Quote:
Originally Posted by Bassman
I have the uterus booked in next Tuesday, he says he will fit new plugs and re check air fuel ratios and a dyno run, so heres hoping he gets it right after the 4th attempt.
If that dont work get your money back and go somewere else.....
__________________
TS50 no-125
TE50 no-94
"The TE50 is the best high performance sedan Australia has ever produced"
Street machine Feb 2002
TE50T3 Remember the GTHO? well your getting close.
Motor mag Jan 2002

Wouldn't you love to say that about your car?You loosers
Noboss is offline   Reply With Quote
Old 05-19-2004, 04:46   #10 (permalink)
CK 302
 
Bassman's Avatar
 
Join Date: Feb 2004
Location: Canberra
Posts: 160
Re: Spark plug colour from pinging

Yes, thanks guys, Ill let you know how i go on Tuesday.
Bassman is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

  Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > The Garage - Tech Forums > Engine Specific Tech > Windsor Tech



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Spark Plug Brands Francis General Tech 12 07-30-2004 23:47
Spark plug gap - Fiesta drmshahid Ford Fiesta Forum | Ford kA Forum 0 04-20-2004 10:29
Windstar spark plug gap spec slimsunny34 Ford Vans and Mini Vans | Ford Aerostar | Ford Freestar | Ford Galaxy | Ford Windstar 2 04-04-2004 11:25
spark plug gap edgie52 Ford Ranger Forum 3 12-20-2001 17:00
changing spark plug leads vthai99 General Tech 12 11-30-2001 10:05

Powered by vBadvanced CMPS v3.2.2

All times are GMT -7. The time now is 05:22.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.6.0
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.