C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

Spark Plug Problem

Thread Tools
 
Search this Thread
 
Old Dec 12, 2004 | 03:38 PM
  #1  
tom_red_76's Avatar
tom_red_76
Thread Starter
Instructor
 
Joined: Mar 2003
Posts: 102
Likes: 0
From: Taft CA
Default Spark Plug Problem

Hello all,

Well it is time to change my spark plugs and I managed to get all but two changed out. Now these last two I don't think I can get them off with out taking the header off . Take a look it is the two outer plugs.


The one in the back I can't even get the boot off. Do you guys have any tips or things not to do when taking the header off? Thanks in advance.

-tom-

Last edited by tom_red_76; Dec 12, 2004 at 07:08 PM.
Reply
Old Dec 13, 2004 | 08:22 AM
  #2  
RATT7's Avatar
RATT7
Pro
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Nov 2001
Posts: 684
Likes: 0
From: Winnipeg Manitoba
Default

The 2 plugs at the back on my 1980, I have to go under the car to access them. Is there a chance you could go this route ?
Reply
Old Dec 13, 2004 | 08:37 AM
  #3  
MILO's Avatar
MILO
Pro
15 Year Member
 
Joined: Dec 2002
Posts: 560
Likes: 1
From: Mooresville NC
Default

I can't believe that boot on the end which can't come off, didn't just burn off. But once you do get the boot off, try using an offset box wrench from underneath.
Reply
Old Dec 13, 2004 | 12:58 PM
  #4  
tom_red_76's Avatar
tom_red_76
Thread Starter
Instructor
 
Joined: Mar 2003
Posts: 102
Likes: 0
From: Taft CA
Default

Originally Posted by MILO
I can't believe that boot on the end which can't come off, didn't just burn off. But once you do get the boot off, try using an offset box wrench from underneath.
Yea i know its really tight back there... I will have to try the offset wrench idea, that may work. thanks for the idea.

-tom-
Reply
Old Dec 13, 2004 | 01:04 PM
  #5  
vettfixr's Avatar
vettfixr
Le Mans Master
25 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Jul 1999
Posts: 9,206
Likes: 17
From: Sewell NJ
Default

I just went through this. I got an old 1/2 inch drive 5/8 inch short socket and ground two flats on it so I could put an open end wrench on it. Slip the socket over the plug so the tip sticks through the opening and then turn it with an open end. Once it's a little loose you can remove it with your fingers the rest of the way. Installation is the reverse.
Reply
Old Dec 13, 2004 | 01:36 PM
  #6  
RATT7's Avatar
RATT7
Pro
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Nov 2001
Posts: 684
Likes: 0
From: Winnipeg Manitoba
Default

I had the same Idea as vettfixr - I think sears had a socket where you could use and open end wrench on it - I',m sure I saw that here at the forum by chance ?
Reply
Old Dec 13, 2004 | 01:39 PM
  #7  
MILO's Avatar
MILO
Pro
15 Year Member
 
Joined: Dec 2002
Posts: 560
Likes: 1
From: Mooresville NC
Default

Originally Posted by RATT7
I had the same Idea as vettfixr - I think sears had a socket where you could use and open end wrench on it - I',m sure I saw that here at the forum by chance ?

I have a spark plug socket which has this.
Reply
Old Dec 13, 2004 | 02:20 PM
  #8  
68coupe's Avatar
68coupe
Pro
 
Joined: Sep 2004
Posts: 595
Likes: 0
From: Boston MA
Default

What I did:
Try removing the rubber boot inside of a spark plug socket. It allows flexibility in the socket and you can use the socket at more of an angle.
If not geta torch and make your own offset wrench.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
story-1

2027 Corvette vs The World: Every Model vs Closest Competitor

 Joe Kucinski
story-2

10 Most Common Corvette Problems of the Last 20 Years!

 Joe Kucinski
story-3

5 MOST and 5 LEAST Popular Corvette Model Years in History!

 Joe Kucinski
story-4

2027 Corvette Buyer's Guide: Everything You Need to Know!

 Joe Kucinski
story-5

10 Things C8 Corvette Owners Hate (But Won't Tell You)

 Joe Kucinski
story-6

10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

 Brett Foote
story-7

Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

 Joe Kucinski
story-8

Grand Sport & Grand Sport X Launch Alongside All-New 535hp LS6 V8!

 Michael S. Palmer
story-9

5 Reasons Bad Drivers Crash & 5 Ways to Avoid a Costly Mistake!

 Joe Kucinski
Old Dec 13, 2004 | 02:33 PM
  #9  
RATT7's Avatar
RATT7
Pro
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Nov 2001
Posts: 684
Likes: 0
From: Winnipeg Manitoba
Default

I found on the snap on Canadian website a socket for this - you could use this as an idea and build your own version-
Socket, Spark Plug, Retaining Ring, 7/8" external hex, 7/8", 6-Point
Stock#: S6106KA
Reply
Old Dec 13, 2004 | 02:44 PM
  #10  
tom_red_76's Avatar
tom_red_76
Thread Starter
Instructor
 
Joined: Mar 2003
Posts: 102
Likes: 0
From: Taft CA
Default

vettfixr and RATT7 i was using a socket with the end for a wrench on it.. but it was just to much of an angle to get it on the plug. i think part of the problem is that the way the heads are the plug oles don't line up with the notches in the flange on the header. im thinking that i have to drop the header becouse of that back plug that is really close to the tube.

68coupe The rubber thing in the socket had already been removed previously.

from what i can see it wont be to bad to take the header off. its just 4 bolts so not to bad. im going to have to find a new gasket for it but that won't be bad.

Thanks again guys for the tips

-tom-
Reply
Old Dec 13, 2004 | 02:49 PM
  #11  
tom_red_76's Avatar
tom_red_76
Thread Starter
Instructor
 
Joined: Mar 2003
Posts: 102
Likes: 0
From: Taft CA
Default

Originally Posted by RATT7
I found on the snap on Canadian website a socket for this - you could use this as an idea and build your own version-
Socket, Spark Plug, Retaining Ring, 7/8" external hex, 7/8", 6-Point
Stock#: S6106KA
yea here is the site:
http://buy1.snapon.com/catalog/item....store&tool=all

I was using somthing similar to this it just has a 3/4 end on it.

Last edited by tom_red_76; Dec 13, 2004 at 02:53 PM.
Reply

Get notified of new replies

To Spark Plug Problem





All times are GMT -4. The time now is 06:53 AM.

story-0
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-1
2027 Corvette vs The World: Every Model vs Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-20 17:58:41


VIEW MORE
story-2
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE
story-3
5 MOST and 5 LEAST Popular Corvette Model Years in History!

Slideshow: 5 most and least popular Corvette model years.

By Joe Kucinski | 2026-04-08 13:25:01


VIEW MORE
story-4
2027 Corvette Buyer's Guide: Everything You Need to Know!

Slideshow: 2027 Corvette buyer's guide

By Joe Kucinski | 2026-04-17 16:41:08


VIEW MORE
story-5
10 Things C8 Corvette Owners Hate (But Won't Tell You)

Slideshow: 10 things C8 Corvette owners hate, but won't tell you.

By Joe Kucinski | 2026-04-01 18:36:07


VIEW MORE
story-6
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

Slideshow: Should you add one of these incredible Corvettes to your garage?

By Brett Foote | 2026-04-01 18:14:05


VIEW MORE
story-7
Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

Slideshow: Every Corvette Grand Sport explained

By Joe Kucinski | 2026-03-26 07:13:44


VIEW MORE
story-8
Grand Sport & Grand Sport X Launch Alongside All-New 535hp LS6 V8!

Slideshow: Breaking down the 2027 Grand Sport, Grand Sport X, Stingray, and LS6 V8.

By Michael S. Palmer | 2026-03-26 13:48:45


VIEW MORE
story-9
5 Reasons Bad Drivers Crash & 5 Ways to Avoid a Costly Mistake!

Slideshow: 5 reasons bad drivers crash sports cars & 5 ways to avoid a costly shame!

By Joe Kucinski | 2026-03-25 16:32:55


VIEW MORE