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Old 12-01-2010, 11:18 AM
 
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Which is better to loosen spark plugs up? PB Blaster or Liquid Wrench?

These spark plugs require a spark plug deep socket to get out so they are in there.
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Old 12-01-2010, 11:56 AM
 
Location: North Pole Alaska
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What are they in? Aluminum head or iron.
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Old 12-01-2010, 12:09 PM
 
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Neither one. Use Kroil.

KanoLabs.com

Is it a 5.4 Ford?
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Old 12-01-2010, 01:37 PM
 
Location: Eastern Washington
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3-steps beat me to it. But between Liquid Wrench and PB, I consider PB to be a good bit better.

Kroil can be ordered via mail from Eastwood if you can't find it locally, in my experience it's the best penetrating oil you can get.

The 5.4 Ford sparkplugs may or may not respond to it though, I have not worked on one of these myself but in general you have to "crack" the plugs loose at least 1/8 turn or so before the penetrating oil can get to the threads.
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Old 12-01-2010, 05:28 PM
 
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Quote:
Originally Posted by Gimme3steps View Post

Neither one. Use Kroil.

KanoLabs.com

Now there is a man that KNOWS his penetrating oils!!

The best stuff ever invented, besides duct tape!
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Old 12-01-2010, 06:30 PM
 
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I know PB works well to help free up rusted bolts. As far as spark plugs its best to have the engine at operating temperature when trying to free up a stuck plug because the metal will be expanded and will allow the penetrating oil to saturate to the threads easier.Putting pressure on a cold plug in a cold engine is a sure fire way to snap it off quickly.
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Old 12-01-2010, 06:45 PM
 
Location: Eastern Washington
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Quote:
Originally Posted by Nativechief View Post
I know PB works well to help free up rusted bolts. As far as spark plugs its best to have the engine at operating temperature when trying to free up a stuck plug because the metal will be expanded and will allow the penetrating oil to saturate to the threads easier.Putting pressure on a cold plug in a cold engine is a sure fire way to snap it off quickly.

Any specific recommendations on that weird 5.4L sparkplug, besides try to change them often enough that they don't get stuck?

What about the 1-piece Champion plug as opposed to Motorcraft?
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Old 12-01-2010, 07:45 PM
 
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Quote:
Originally Posted by Gimme3steps View Post
Neither one. Use Kroil.

KanoLabs.com

Is it a 5.4 Ford?
Yep, I've probably average a few hundred cans of Kroil a year and that's the big cans, unfortunately not even Kroil oil is gona help much with a gaulded up 5.4l ford spark plug, you are between a rock and a hard place.
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Old 12-02-2010, 09:48 AM
 
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Quote:
Originally Posted by M3 Mitch View Post
Any specific recommendations on that weird 5.4L sparkplug, besides try to change them often enough that they don't get stuck?
Well, if you get he old ones out, then coat the threads on the new ones with anti-seize so they come out when you need them to.
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Old 12-02-2010, 09:57 AM
 
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Quote:
Originally Posted by waitingtundra View Post
Yep, I've probably average a few hundred cans of Kroil a year and that's the big cans, unfortunately not even Kroil oil is gona help much with a gaulded up 5.4l ford spark plug, you are between a rock and a hard place.
A few hundred? Are you adding it to your bathwater?

(I once knew a guy that would spray WD-40 on his elbows for arthritis. He claimed it helped)
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