Spark Plugs
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Professional
Joined: Jul 2010
Posts: 148
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From: Southport
Spark Plugs
On the 5.9L V8 is the drive size a 5/8" or 3/8"?
Also, what should I do if the bolts are soo rusted they won't come out?
The heat shields are still attached by the way.
Also, what should I do if the bolts are soo rusted they won't come out?
The heat shields are still attached by the way.
Veteran
Joined: Sep 2010
Posts: 267
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What he said, and take a compressor to blow the dirt that gets trapped by the heat shields. Take a blow gun and blow around the plug before you take it out. Use anti-seize on the new plugs before you install them. It's sold at auto parts stores.
Not required, but worth the extra 2 minutes.
-JT
Not required, but worth the extra 2 minutes.
-JT
Grand Champion
Joined: Apr 2010
Posts: 5,011
Likes: 6
From: Meeker, CO
And if I might add my three-eighths of a cent worth:
Blow the crap out of the heat shields before applying the penetrating lubricant so you don't make mud.
Anti-seize should be considered mandatory. It's easier to apply anti-seize today than to extract a broken plug during the next tune-up.
If any of the plugs are difficult to remove, grind on the way out, or show rust on their threads, chase the threads (in the head) with a thread chaser (not a tap).
Blow the crap out of the heat shields before applying the penetrating lubricant so you don't make mud.
Anti-seize should be considered mandatory. It's easier to apply anti-seize today than to extract a broken plug during the next tune-up.
If any of the plugs are difficult to remove, grind on the way out, or show rust on their threads, chase the threads (in the head) with a thread chaser (not a tap).
