LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Spark plugs!?

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Old Sep 20, 2003 | 10:58 PM
  #1  
NewbieWar's Avatar
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From: Germany
Question Spark plugs!?

how the hell are u supposed to change the spark plugs?

when under the car i can only see 1 of them, i can see the wires fine, and from on top i cant see any of em

what is the easiest way to replace them?
Old Sep 21, 2003 | 01:19 AM
  #2  
chasmanz28's Avatar
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From: PA
Re: Spark plugs!?

Originally posted by NewbieWar
how the hell are u supposed to change the spark plugs?

when under the car i can only see 1 of them, i can see the wires fine, and from on top i cant see any of em

what is the easiest way to replace them?
Here's the best method (without Y-pipe removal) found so far:

PLUG
ACCESS
TOOLS REQUIRED
COMMENTS

1
Top
Socket w/ Swivel
Easy

3
Top
Socket w/ Swivel
Easy

5
Bot
Socket w/ Swivel
Slightly tricky

7
Bot
Socket w/ Swivel
Watch out for O2 sensor

2
Top
Socket w/ Open End
AC & Exhaust AIR Tubes make it NASTY

4
Top
Socket w/ Swivel
Completely blind on this one

6
Bot
Socket w/ Swivel
Difficult to reach, but doable

8
Bot
Socket w/ Swivel
Skinny arms are a MUST


NOTES:

Be sure to replace the heat shield covers on plugs 6, 7, and 8.
If you're changing the wires, be sure to route the #7 wire through the factory heat shield that runs between the exhaust manifold and the block. If it makes contact with the manifold, it's going to burn right through.
Use anti-seize compound on new plugs. The factory didn't which made removal that much more difficult.
You may want to do the easiest plugs first, (saving #2 for last) to give yourself a sense of accomplishment and to boost your self-confidence.
Old Sep 21, 2003 | 07:05 AM
  #3  
BlueCamaroZ28's Avatar
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Posts: 267
Cool

Well, it is a different story with long tube headers like my Edelbrok's. I don't know how you reached #2 with A/C compressor blocking the veiw.

The right bank was easier though. The left bank, made me unbolt the left header but that was needed anyway since I was replacing a leaking gasket.
Old Sep 21, 2003 | 10:38 AM
  #4  
NewbieWar's Avatar
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Posts: 2,370
From: Germany
better to do from above?
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