White residue all over spark plugs....why? - Pirate4x4.Com : 4x4 and Off-Road Forum

knaffie · 08-15-2007, 06:39 PM

In my experience, whenever you have white on a spark plug, its burning lean. So what's up with this? What would cause it? Should I be worried? 1995 Geo Prizm (Toyota Corolla) bone stock 1.8L I4. Still running great with no known problems at 230,000. Plugs have probably been in there for 1.5 years / 40,000 miles.

Easy Rick · 08-15-2007, 06:44 PM

Maybe it was running rich or burning oil, and then quit??

svt150j49 · 08-15-2007, 06:44 PM

it means you need to stop driving like a old lady.

knaffie · 08-15-2007, 07:06 PM

It burns about a quart of oil per 1000 miles and its never quit.

knaffie · 08-15-2007, 07:07 PM

Quote:

Originally Posted by svt150j49

it means you need to stop driving like a old lady.

You have no idea. I beat the piss out of this car every single day and it just keeping going, and going, and getting 38 MPG doing it.

Tim84K10 · 08-15-2007, 09:01 PM

Quote:

Originally Posted by knaffie

You have no idea. I beat the piss out of this car every single day and it just keeping going, and going, and getting 38 MPG doing it.

So STFU, put the plugs back in it, and run it!

HeyBeerMan · 08-15-2007, 09:04 PM

Looks like your running hard gas.

ranger · 08-15-2007, 09:19 PM

Usually thats caused by additives.

bronco69drp · 08-15-2007, 09:21 PM

oil Deposits( burnt ash)
The accumulation of deposits on the firing end is influenced by oil leakage, fuel quality and the engine's operating duration.

RJR99SS · 08-15-2007, 09:25 PM

You're running lean as fuck! Thats why.

FordFascist · 08-15-2007, 09:42 PM

It looks like what's said above: it's burning a little oil, and modern 4 cylinders run leaner than shit on the freeway to get the mileage. You could maybe step up to a hotter plug if it's fouling, otherwise wire brush those and put them back in if you're a cheap bastard, or buy a new set at the parts store.

svt150j49 · 08-15-2007, 10:09 PM

id say oil. ive seen the additives, they look more redish when it burns...ive got a B2200, it did the same thing... burning oil.

bronco69drp · 08-16-2007, 02:00 AM

Overheated:
On this symptom you will notice a chalky appearance, white insulator, rapid electrode wear as well as an absence of deposits. The actual shell may also be discolored.
To cure this you must first verify that the plug is the correct heat range, the ignition timing settings are correct, the air/fuel mixture is not too lean, there are no vacuum leaks and that the EGR valve (if equipped) is functioning properly.

Ash Deposits
These are light-brownish deposits that are encrusted to the ground and/or center electrode(s). This situation is caused by oil and/or fuel additives. This condition can cause misfires.
The cure for this is to verify worn valve guides or valve seals, not using fuel additives, or you might even try changing fuel brands. By the way, a hotter plug is what most people try to fix this problem. You need to first understand that the plug is NOT typically the problem.

knaffie · 08-16-2007, 03:41 AM

Thanks for the suggestions. Looks like I'll just keep to the plan: run it until it dies.

Jeepermat · 08-16-2007, 06:34 AM

Geo tech? WTF

Rix86 · 08-16-2007, 08:48 AM

put better plugs in it too.
ngk or denso.

08-15-2007, 06:39 PM	#1 (permalink)
knaffie Rock God Join Date: May 2005 Member # 48084 Location: I live in a van down by the river Posts: 2,082	White residue all over spark plugs....why? In my experience, whenever you have white on a spark plug, its burning lean. So what's up with this? What would cause it? Should I be worried? 1995 Geo Prizm (Toyota Corolla) bone stock 1.8L I4. Still running great with no known problems at 230,000. Plugs have probably been in there for 1.5 years / 40,000 miles. __________________ 2011 TTF buggy

08-15-2007, 06:44 PM	#2 (permalink)
Easy Rick I'm back and watchin Join Date: Feb 2005 Member # 43607 Location: Building Trick cars, pretty close to heaven. Posts: 4,136	Maybe it was running rich or burning oil, and then quit?? __________________ KOH racer #554 Huge thanks to our partners: Trick Toys Fabrication, NITTO Tires, Longfield Super Joints, PSC steering components, Brian Smith Development.............tricktoysracing@yahoo.com

08-15-2007, 06:44 PM	#3 (permalink)
svt150j49 Damn you chuckie... Join Date: Jan 2007 Member # 85316 Location: Redding Posts: 2,937	it means you need to stop driving like a old lady. __________________ 1996 F150 - Supercharged 5.8L, E4OD, Vortech S-trim, PSD Intercooler, 15 psi , 1356, Dana 60, 10.25, 5.13 gears, welded rear diff, 14" Air/Coilovers. Check it out: Build thread: Here The un-named buggy - 2.3L, lotsa tube, and FJ80s.

08-15-2007, 07:06 PM	#4 (permalink)
knaffie Rock God Join Date: May 2005 Member # 48084 Location: I live in a van down by the river Posts: 2,082	It burns about a quart of oil per 1000 miles and its never quit. __________________ 2011 TTF buggy Last edited by knaffie; 08-15-2007 at 07:07 PM.

08-15-2007, 09:21 PM	#9 (permalink)
bronco69drp Registered User Join Date: Oct 2004 Member # 36795 Location: cordova, tn(near memphis) Posts: 262	oil Deposits( burnt ash) The accumulation of deposits on the firing end is influenced by oil leakage, fuel quality and the engine's operating duration. __________________ Derek: '69 bronco crawler/ 5.0 HO EFI/ 1 tons & 42''s Last edited by bronco69drp; 08-15-2007 at 09:22 PM.

08-15-2007, 09:04 PM	#7 (permalink)
HeyBeerMan Rock God Join Date: May 2001 Member # 4830 Location: Wickenburg Posts: 2,044	Looks like your running hard gas.

08-15-2007, 09:19 PM	#8 (permalink)
ranger Registered User Join Date: Jul 2000 Member # 1282 Location: Boise, Idaho Posts: 4,819	Usually thats caused by additives.

08-15-2007, 09:25 PM	#10 (permalink)
RJR99SS Registered User Join Date: Aug 2006 Member # 77697 Location: Hognut Ohio Posts: 541	You're running lean as fuck! Thats why.

08-15-2007, 10:09 PM	#12 (permalink)
svt150j49 Damn you chuckie... Join Date: Jan 2007 Member # 85316 Location: Redding Posts: 2,937	id say oil. ive seen the additives, they look more redish when it burns...ive got a B2200, it did the same thing... burning oil. __________________ 1996 F150 - Supercharged 5.8L, E4OD, Vortech S-trim, PSD Intercooler, 15 psi , 1356, Dana 60, 10.25, 5.13 gears, welded rear diff, 14" Air/Coilovers. Check it out: Build thread: Here The un-named buggy - 2.3L, lotsa tube, and FJ80s.

08-16-2007, 02:00 AM	#13 (permalink)
bronco69drp Registered User Join Date: Oct 2004 Member # 36795 Location: cordova, tn(near memphis) Posts: 262	Overheated: On this symptom you will notice a chalky appearance, white insulator, rapid electrode wear as well as an absence of deposits. The actual shell may also be discolored. To cure this you must first verify that the plug is the correct heat range, the ignition timing settings are correct, the air/fuel mixture is not too lean, there are no vacuum leaks and that the EGR valve (if equipped) is functioning properly. Ash Deposits These are light-brownish deposits that are encrusted to the ground and/or center electrode(s). This situation is caused by oil and/or fuel additives. This condition can cause misfires. The cure for this is to verify worn valve guides or valve seals, not using fuel additives, or you might even try changing fuel brands. By the way, a hotter plug is what most people try to fix this problem. You need to first understand that the plug is NOT typically the problem. __________________ Derek: '69 bronco crawler/ 5.0 HO EFI/ 1 tons & 42''s

08-16-2007, 03:41 AM	#14 (permalink)
knaffie Rock God Join Date: May 2005 Member # 48084 Location: I live in a van down by the river Posts: 2,082	Thanks for the suggestions. Looks like I'll just keep to the plan: run it until it dies. __________________ 2011 TTF buggy

08-16-2007, 06:34 AM	#15 (permalink)
Jeepermat Registered User Join Date: Feb 2006 Member # 67907 Location: DBQ, IA Posts: 2,198	Geo tech? WTF __________________ The Beepster [url]http://www.pirate4x4.com/forum/showthread.php?t=727456[/url]

08-16-2007, 08:48 AM	#16 (permalink)
Rix86 Registered User Join Date: Jul 2007 Member # 96143 Location: Tacoma washington Posts: 177	put better plugs in it too. ngk or denso.

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