see the spark through the plug? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**guyryan100** · 10-08-2005, 11:16 AM

This doesn't seem right to me - I can see a nice little fireworks show through two of my spark plugs - # 5 and 7. Is this a problem with the plug?

masterbeavis · 10-08-2005, 11:23 AM

Are the plugs champion? I've seen this before. We took em out and replaced with autolites. Problem solved

cableguy0 · 10-08-2005, 11:56 AM

bad plugs or bad wires will do this. i would change all the plugs and put a good set of performance wires on.

**tnblazerk5** · 10-08-2005, 12:11 PM

Quote:

Originally Posted by masterbeavis

Are the plugs champion? I've seen this before. We took em out and replaced with autolites. Problem solved

i have seen the same thing but we used differant plugs back in there

**guyryan100** · 10-08-2005, 12:31 PM

so is this a perfomance issue or just a quirky semitransparent plug thing?

**Stocker** · 10-08-2005, 12:36 PM

**tnblazerk5** · 10-08-2005, 12:43 PM

Quote:

Originally Posted by guyryan100

so is this a perfomance issue or just a quirky semitransparent plug thing?

its a bad plug ,performance

walker · 10-08-2005, 02:27 PM

It is a bad plug. Either the spark is travelling over the surface of the porcelin on grease/dirt, or pehaps the porcelin has a crack in it. Either way plug replacement is the fix.

purple gas · 10-09-2005, 11:08 AM

Y'know. If you take a real good quality peice of porceline,, Bone china for example and hold it up to the light it is slightly translucent. what this has to do with spark plug technology I have no idea. But I saw it on the "antiques roadshow" program and thought I'd share it with the class.

**special-K** · 10-09-2005, 01:54 PM

I know if you have a bucket full of old sparkplugs and you take a Champion and ANY other plug,hold them at the base and strike the two together on the porcelin the Champion will ALWAYS break.

69 Short Fleet · 10-09-2005, 04:59 PM

Champion Plugs are the last chioce IMO. I've been running NGK's in my street vehicals and all my race bikes... I've never had one bad plug in 30 + years.

Aquivarious · 10-09-2005, 06:33 PM

Spark plugs and wires are cheap considering that your performance will probably be better after the fix...

Just my $.02

**guyryan100** · 10-09-2005, 09:27 PM

Thanks - these are the Delco plugs that came with the crate motor.

10-08-2005, 11:16 AM	#1
guyryan100 Registered User Join Date: Sep 2001 Location: Cumming, GA Posts: 481	see the spark through the plug? This doesn't seem right to me - I can see a nice little fireworks show through two of my spark plugs - # 5 and 7. Is this a problem with the plug?

10-08-2005, 11:23 AM	#2
masterbeavis Having issues Join Date: Jul 2005 Location: Eldorado Ca, an hour east of sacramento Posts: 696	Are the plugs champion? I've seen this before. We took em out and replaced with autolites. Problem solved __________________ Quando Omni Flunkus Moritati. The Man's Prayer: "I'm a man, but I can change, if I have to, I guess."

10-08-2005, 11:56 AM	#3
cableguy0 Senior Member Join Date: Apr 2000 Location: Delta,Pa Posts: 14,950	bad plugs or bad wires will do this. i would change all the plugs and put a good set of performance wires on. __________________ Owner of North Point Car Care in Dundalk Md. We specialize in custom exhaust on both modern and classic vehicles. We are a full service auto shop from classics to modern vehicles. Feel free to contact me with questions. I will give a 10% discount to any board member.

10-08-2005, 12:36 PM	#6
Stocker 20' Daredevil (Ret) Join Date: May 2003 Location: Jefferson State Posts: 13,694	__________________ - Mike - 1972 K20 LWB 350/350/205 RIP El Jay

10-08-2005, 02:27 PM	#8
walker Registered User Join Date: Jul 2003 Location: north of Phx AZ about 30 miles Posts: 698	It is a bad plug. Either the spark is travelling over the surface of the porcelin on grease/dirt, or pehaps the porcelin has a crack in it. Either way plug replacement is the fix. __________________ Andy,Phx AZ '67 C-10 (Ahhh, done at last. Well there is that disk front end I want to put in and...) "23 C-Cab-sold '48 Ford 8N tractor(still working) '67 Scout(Now on the road) '70 MG B.-sold

10-08-2005, 12:31 PM	#5
guyryan100 Registered User Join Date: Sep 2001 Location: Cumming, GA Posts: 481	so is this a perfomance issue or just a quirky semitransparent plug thing?

10-09-2005, 11:08 AM	#9
purple gas Registered User Join Date: Oct 2004 Location: saskatoon, planet earth Posts: 694	Y'know. If you take a real good quality peice of porceline,, Bone china for example and hold it up to the light it is slightly translucent. what this has to do with spark plug technology I have no idea. But I saw it on the "antiques roadshow" program and thought I'd share it with the class. __________________ I got a bench seat baby, you don't have to sit over there.

10-09-2005, 01:54 PM	#10
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,852	I know if you have a bucket full of old sparkplugs and you take a Champion and ANY other plug,hold them at the base and strike the two together on the porcelin the Champion will ALWAYS break. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

10-09-2005, 04:59 PM	#11
69 Short Fleet Registered User Join Date: Nov 2002 Location: Kelowna B.C. Canada Posts: 1,086	Champion Plugs are the last chioce IMO. I've been running NGK's in my street vehicals and all my race bikes... I've never had one bad plug in 30 + years.

10-09-2005, 06:33 PM	#12
Aquivarious Registered User Join Date: Sep 2005 Location: Alton, Illinois Posts: 90	Spark plugs and wires are cheap considering that your performance will probably be better after the fix... Just my $.02 __________________ '71 Chevy C-10 SWB (Project) '04 Mazda RX-8 (F*** around Car) '85 Chevy C-20 (Former Project) Currently Serving In IRAQ. (Man it sucks over here..)

10-09-2005, 09:27 PM	#13
guyryan100 Registered User Join Date: Sep 2001 Location: Cumming, GA Posts: 481	Thanks - these are the Delco plugs that came with the crate motor.

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