Re: OT--Ford Triton V8 plug nightmare...

Posted by Philscbx on November 15, 2006 at 19:04:06 from (4.143.23.220):

In Reply to: Re: OT--Ford Triton V8 plug nightmare... posted by RusselAZ on November 15, 2006 at 16:10:50:

That's the difference between a junk yard dog and factory
trained techs. When you do it for a living on the same machine
day in and day out, you don't forget.

I'll bet $50,000 no anti seize was applied to the threads to
protect the spark plug holes in the aluminum heads. Even on
cast iron as well.

I used to see this as a service manager for Ford.
Open the hood, and see the spark plug dancing in the hole.
That's just plain retarded.

This is standard practice since the early 70's. Smart ones
anyway.

Here's the real time event how it was stripped:
1. No protection applied.
2. Now, the plug threads are already seized to the aluminum.
3. Now on removing plug, the seized aluminum is now ripped
away by the plug, and forced over the good threads ruining
those as well.
4. The tech sees this, says and does nothing. Tries to install new
plug down into damaged head.
He's to retarded to make simple repair before doing this because
it may take 5 minutes more time.
5. He applies final torque as usual, and it just spins away freely
any remaining threads in the head.
Now claiming it's your fault, and the bill goes to $250 for repair,
and maybe a couple days longer.

I've personally made hundreds of these repairs and after other
techs have made them worse. The standard tooling for heli coils
are not exact science. I modify the tooling just for aluminum.

Once One understand the properties of cheese compared to
steel, will it make sense.

Good Luck,,
Phil, Mpls Mn.

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