Spark plug gap

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

73c20jim

Full Access Member
Joined
Jun 11, 2018
Posts
2,282
Reaction score
2,924
Location
Tombstone, AZ
First Name
Jim
Truck Year
1973, 1973
Truck Model
C20 2WD Custom Deluxe. C10 2WD Base Model
Engine Size
350 CID 195/260 HP Goodwrench crate, 400 CID 2bbl
I ain't got no sticker. Me wannum sticker.
 

CoggedBelt75

Full Access Member
Joined
Jul 31, 2010
Posts
35,040
Reaction score
144,923
Location
Altus, Oklahoma
First Name
Joe
Truck Year
1975
Truck Model
C10
Engine Size
383
You must be registered for see images attach

Anyone think the wrong gap on this spark plug coulda caused this or do I just need the next colder range? Or maybe just a good cleaning & smoothing it up some with JB Weld? With the price gouging going on at O’Reallys because of C19, just needing a way to bring some new life into this without breaking the bank. Awaiting an answer.
 

John Nes

Full Access Member
Joined
Aug 21, 2019
Posts
852
Reaction score
1,128
Location
Atlanta
First Name
John
Truck Year
1987, 1979, 1973
Truck Model
R10, Sierra, C20
Engine Size
5.7 350tbi , 5.7 350, 5.7 350
@CoggedBelt75 you forgot to use anti-seize on those threads! Otherwise, lookin good!
 

Raider L

Full Access Member
Joined
Sep 1, 2020
Posts
1,892
Reaction score
994
Location
Shreveport, LA
First Name
William
Truck Year
1974
Truck Model
C10
Engine Size
355
@CoggedBelt75,

C'mon now, how'd this happen? Did you put a little bit to much advance before you stuck your foot in that monster blower?? My brain is working overtime trying to figure out what would melt a plug, I've heard of this but usually what happens is the whole end of the plug is melt...Wait, I remember!! It's the pro dragsters running all that nitro. They say that it's so hot that it literally melts the plugs out of the head. That when you see sparks coming out of the exhaust pipe it's the plugs melting off!!
 

Bextreme04

Full Access Member
Joined
May 13, 2019
Posts
4,135
Reaction score
4,984
Location
Oregon
First Name
Eric
Truck Year
1980
Truck Model
K25
Engine Size
350-4bbl
You must be registered for see images attach

Anyone think the wrong gap on this spark plug coulda caused this or do I just need the next colder range? Or maybe just a good cleaning & smoothing it up some with JB Weld? With the price gouging going on at O’Reallys because of C19, just needing a way to bring some new life into this without breaking the bank. Awaiting an answer.
Just slap some JB on it and make sure you run double the giggle gas next time so that it protects the plugs(by melting the piston first).
 

CoggedBelt75

Full Access Member
Joined
Jul 31, 2010
Posts
35,040
Reaction score
144,923
Location
Altus, Oklahoma
First Name
Joe
Truck Year
1975
Truck Model
C10
Engine Size
383
Just slap some JB on it and make sure you run double the giggle gas next time so that it protects the plugs(by melting the piston first).
Got rid of the gas in ‘07. Only knocked the top 2 lands off of 3 pistons but didn’t hurt the plugs. Pretty sure I’ve changed plugs since then tho. Only running 10lbs of forced air now. Maybe sealing the side gap up I could get 11. And @John Nes , I may have used too much never seize on it. Figured that was what was running down it.
 

Latest posts

Forum statistics

Threads
41,857
Posts
903,628
Members
33,370
Latest member
mitchell1128
Top