why am i burning plugs?
Forums at Modded Mustangs
Home Register FAQ Members List Calendar Blogs Garage Gallery Search Today's Posts Mark Forums Read Insurance


Go Back   Forums at Modded Mustangs > Mustang Forums > 5.0 Mustangs

ModdedMustangs.com is the premier Ford Mustang Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools
Old May 8th, 2009, 12:30 PM   #1
Regular
 
sniperrider's Avatar
 
 
Join Date: Apr 2007
Location: olympia washington
Posts: 396
sniperrider is on a distinguished road
iTrader: 0 reviews
Send a message via MSN to sniperrider
Default

why am i burning plugs?


so i changed out the plugs two days ago which had only been ran for a week but it was a week of ajusting timing and such so they were burnt, put the new plugs in and they are already white what could cause this?
__________________
90 lx hatch
  Reply With Quote
Sponsored Links
Advertisement
 
Old May 8th, 2009, 12:38 PM   #2
Hardcore Enthusiast
 
89LX347's Avatar
 
 
Join Date: Apr 2007
Posts: 1,304
89LX347 will become famous soon enough
iTrader: 0 reviews
Default

wheres the timing mark on the ground strap at? do you have enough fuel goin to it?
__________________

I believe in art when it is not seen.
I believe in music when it is not audible.
I believe in God when He is silent.
  Reply With Quote
Old May 8th, 2009, 12:42 PM   #3
Regular
 
sniperrider's Avatar
 
 
Join Date: Apr 2007
Location: olympia washington
Posts: 396
sniperrider is on a distinguished road
iTrader: 0 reviews
Send a message via MSN to sniperrider
Default

thats my worry it seems as tho its lean its a new 306 with stock heads and fuel system so i could understand its need for fuel, nonetheless its running around 14-16*
__________________
90 lx hatch
  Reply With Quote
Old May 8th, 2009, 12:49 PM   #4
Hardcore Enthusiast
 
89LX347's Avatar
 
 
Join Date: Apr 2007
Posts: 1,304
89LX347 will become famous soon enough
iTrader: 0 reviews
Default

is it carbed or injected?
__________________

I believe in art when it is not seen.
I believe in music when it is not audible.
I believe in God when He is silent.
  Reply With Quote
Old May 8th, 2009, 12:52 PM   #5
Regular
 
sniperrider's Avatar
 
 
Join Date: Apr 2007
Location: olympia washington
Posts: 396
sniperrider is on a distinguished road
iTrader: 0 reviews
Send a message via MSN to sniperrider
Default

injected stock 19lbs stock heads and fpr 255lph pump and everthing else on motor is either new or aftermarket, trick flow setup, only thing left to do on it is fuel and heads i have 30lb injectors and mass air for them but think it prolly overkill
__________________
90 lx hatch
  Reply With Quote
Old May 8th, 2009, 12:59 PM   #6
Regular
 
chriswao's Avatar
 
1989 mustang gt
8th 5.70
 
Join Date: Feb 2009
Location: savannah
Posts: 197
chriswao is on a distinguished road
iTrader: 0 reviews
Default

some how you got it to lean weather it be fuel or timing
__________________
Originally Posted by Dennis View Post
great thanks i think i just lost 50 points off of my IQ reading that
  Reply With Quote
Old May 8th, 2009, 01:01 PM   #7
Hardcore Enthusiast
 
89LX347's Avatar
 
 
Join Date: Apr 2007
Posts: 1,304
89LX347 will become famous soon enough
iTrader: 0 reviews
Default

whats your Fp set at?
__________________

I believe in art when it is not seen.
I believe in music when it is not audible.
I believe in God when He is silent.
  Reply With Quote
Old May 8th, 2009, 01:02 PM   #8
Regular
 
sniperrider's Avatar
 
 
Join Date: Apr 2007
Location: olympia washington
Posts: 396
sniperrider is on a distinguished road
iTrader: 0 reviews
Send a message via MSN to sniperrider
Default

well its not adjustable but when i through a gauge on it it said 40psi
__________________
90 lx hatch
  Reply With Quote
Old May 8th, 2009, 01:05 PM   #9
Banned
 
12.8@103... stock motor
11.8@113...150 shot
 
Join Date: Apr 2008
Posts: 464
R0B0T can only hope to improve
iTrader: 0 reviews
Default

what part of the plugs are you looking at???

you need to look way down inside, its easier to just cut the threaded portion off to see the plug...
  Reply With Quote
Old May 8th, 2009, 01:05 PM   #10
Regular
 
sniperrider's Avatar
 
 
Join Date: Apr 2007
Location: olympia washington
Posts: 396
sniperrider is on a distinguished road
iTrader: 0 reviews
Send a message via MSN to sniperrider
Default

and the timing i refuse to set to my liking with a light so i do it be ear until it runs the way i like it then check it with light and it says 14-16* which seems reasonable
__________________
90 lx hatch
  Reply With Quote
Old May 8th, 2009, 01:07 PM   #11
Regular
 
sniperrider's Avatar
 
 
Join Date: Apr 2007
Location: olympia washington
Posts: 396
sniperrider is on a distinguished road
iTrader: 0 reviews
Send a message via MSN to sniperrider
Default

i looking at the prong from the point it starts to bend all the way to the tip is white like stale dogshit, but i will cut a old one after work....ive never heard of cutting a plug to check it tho
__________________
90 lx hatch
  Reply With Quote
Old May 8th, 2009, 01:49 PM   #12
MM Ninjas!
 
1slo5.0's Avatar
 
1990 Mustang LX
9.36@143 mph
 
Join Date: Jan 2006
Location: North Fond du Lac, Wisconsin
Posts: 11,375
1slo5.0 is a name known to all1slo5.0 is a name known to all1slo5.0 is a name known to all1slo5.0 is a name known to all1slo5.0 is a name known to all1slo5.0 is a name known to all
iTrader: 1 reviews
Send a message via AIM to 1slo5.0
Default

Originally Posted by sniperrider View Post
so i changed out the plugs two days ago which had only been ran for a week but it was a week of ajusting timing and such so they were burnt, put the new plugs in and they are already white what could cause this?
Define burning plugs?

White on the electrodes is normal.
__________________
My daily driver has 16 cylinders and 4400hp @ 1000 rpm....


***1988 Mustang GT - Stock....almost
  Reply With Quote
Old May 8th, 2009, 04:28 PM   #13
Regular
 
sniperrider's Avatar
 
 
Join Date: Apr 2007
Location: olympia washington
Posts: 396
sniperrider is on a distinguished road
iTrader: 0 reviews
Send a message via MSN to sniperrider
Default

They are white and when I changed them it ran like its supposed to but the new ones are doing the same thing now :s
__________________
90 lx hatch
  Reply With Quote
Old May 8th, 2009, 05:04 PM   #14
Regular
 
1989 LX coupe 5.0L
 
Join Date: Dec 2007
Location: NS Canada
Posts: 496
89lx is on a distinguished road
iTrader: 0 reviews
Default

Originally Posted by sniperrider View Post
injected stock 19lbs stock heads and fpr 255lph pump and everthing else on motor is either new or aftermarket, trick flow setup, only thing left to do on it is fuel and heads i have 30lb injectors and mass air for them but think it prolly overkill
if you have the trick flow top end kit i would say the stock 19lb injectors arent enough put the 30's in with the new maf
__________________
  Reply With Quote
Old May 8th, 2009, 05:41 PM   #15
MM Ninjas!
 
1slo5.0's Avatar
 
1990 Mustang LX
9.36@143 mph
 
Join Date: Jan 2006
Location: North Fond du Lac, Wisconsin
Posts: 11,375
1slo5.0 is a name known to all1slo5.0 is a name known to all1slo5.0 is a name known to all1slo5.0 is a name known to all1slo5.0 is a name known to all1slo5.0 is a name known to all
iTrader: 1 reviews
Send a message via AIM to 1slo5.0
Default

Originally Posted by sniperrider View Post
They are white and when I changed them it ran like its supposed to but the new ones are doing the same thing now :s
That is not tip burning. When the tip burns, it is not longer there. White electrodes are normal.
__________________
My daily driver has 16 cylinders and 4400hp @ 1000 rpm....


***1988 Mustang GT - Stock....almost
  Reply With Quote
Old May 8th, 2009, 09:37 PM   #17
Regular
 
sniperrider's Avatar
 
 
Join Date: Apr 2007
Location: olympia washington
Posts: 396
sniperrider is on a distinguished road
iTrader: 0 reviews
Send a message via MSN to sniperrider
Default

thanks for the link that helped alot and after reading it i read the old plugs and it appeared to be a little too advanced on timing and i need a colder plug, then pulled one of the new ones and it looks as tho i got the timing right on where it says it should burn and the first three of the threads are burned and a little of the forth so i could use a colder plug still but its not to bad
__________________
90 lx hatch
  Reply With Quote
Old May 8th, 2009, 09:39 PM   #18
Regular
 
sniperrider's Avatar
 
 
Join Date: Apr 2007
Location: olympia washington
Posts: 396
sniperrider is on a distinguished road
iTrader: 0 reviews
Send a message via MSN to sniperrider
Default

but that doesnt solve my problem maybe its not the plugs, at any rpm under 3000 it spudders until i get on it then it runs perfect
__________________
90 lx hatch
  Reply With Quote
Old May 8th, 2009, 09:50 PM   #19
MM Ninjas!
 
1slo5.0's Avatar
 
1990 Mustang LX
9.36@143 mph
 
Join Date: Jan 2006
Location: North Fond du Lac, Wisconsin
Posts: 11,375
1slo5.0 is a name known to all1slo5.0 is a name known to all1slo5.0 is a name known to all1slo5.0 is a name known to all1slo5.0 is a name known to all1slo5.0 is a name known to all
iTrader: 1 reviews
Send a message via AIM to 1slo5.0
Default

I'm going to leave this alone.... Lol!
__________________
My daily driver has 16 cylinders and 4400hp @ 1000 rpm....


***1988 Mustang GT - Stock....almost
  Reply With Quote
Old May 9th, 2009, 03:37 PM   #20
Atomized
 
gotn20's Avatar
 
 
Join Date: Feb 2008
Posts: 1,370
gotn20 will become famous soon enough
iTrader: 0 reviews
Default

whats this about the ground strap?
__________________
spray and pray
  Reply With Quote
Sponsored Links
Advertisement
 
Reply

Thread Tools


Threads Similar to: why am i burning plugs?
Thread Thread Starter Forum Replies Last Post
Burning Smell rendus688 V6 Mustangs 22 November 24th, 2007 03:21 PM
Fuel Problems Burning Rich / Burning Lean Steves LX 5.0 Mustangs 5 March 21st, 2007 09:46 PM
burning oil dragpipe General Tech 0 February 25th, 2007 03:40 PM
Need Help Burning Very RICH!!!! giddyup91 5.0 Mustangs 7 December 1st, 2006 02:44 PM
Burning Oil terribleonexx88 5.0 Mustangs 11 November 13th, 2006 10:45 PM



All times are GMT -4. The time now is 10:10 PM.
Modded Mustangs is ©2005-2008, All Rights Reserved, And is Not Affiliated with Ford Motor Company.
Forum is powered by vBulletin ©2000 - 2012, Jelsoft Ent. Ltd. & SEO by vBSEO 3.3.2 ©2009, Crawlability, Inc.

powered by vBulletin ©2000 - 2012, Jelsoft Ent. Ltd.