Ferrari Mailing List: Re: Steel plugs in aluminum heads

[Rick Moseley (ramosel]

oh, no no no....  we'll not be sucked into the metric argument.

Everyone knows grunts are measured as a fraction of a FOE.  <grin>

(yes, its a real term)

No, you are right, in normal change intervals, you don't need to add anti-sieze.  But if its gonna be another 22 years, it might be a good idea.

And if you don't know or use "Rock-n-Roll" anti-seize, check it out.  Wonderful stuff we use on the race cars.  But a word to the wise, once you open the bottle, keep it in a plastic bag, the stuff migrates!!

Rick

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From: John Ashburne via Ferrari <ferrari [at] ferrarilist.com>
To: Rick Moseley <ramosel [at] pacbell.net>
Cc: The FerrariList <ferrari [at] ferrarilist.com>
Sent: Monday, November 16, 2015 4:08 PM
Subject: Re: [Ferrari] Steel plugs in aluminum heads

Depends whether we are talking a metric grunt or not, I suppose! 😊

Sounds right for aluminum heads. Also, I agree that a few drops of oil is a good idea and start threading them in by hand to finger tight helps prevent cross threading those soft threads.

 I don't think anti-seize is needed at all unless Rick plans not to change those plugs for another 20 years!  Seizing shouldn't be a problem with a more normal usage. 

John

Sent from my ATT Bell Rotary Dial Phone

On Nov 16, 2015, at 6:49 PM, Grahame Reinthal <grahame [at] reinthal.com.au> wrote:

Ah, so it looks like “¾ of a grunt” might be equal to “hand tight then ¼ turn”!  J

 

 

From: Ferrari [mailto:ferrari-bounces+grahame=reinthal.com.au [at] ferrarilist.com] On Behalf Of clyderomerof4 [at] gmail.com
Sent: Tuesday, 17 November 2015 10:07 AM
To: Grahame <grahame [at] reinthal.com.au>
Cc: The FerrariList <ferrari [at] ferrarilist.com>
Subject: Re: [Ferrari] Steel plugs in aluminum heads

 

Hand tight 

Then 1/4 turn 

In victory you deserve Champagne

In defeat you need it!

 

     

Scars are Tattoos with better stories !

 

If you follow all the rules

You miss all the fun! 

 

If you have no enemies, you have no character !

 

Clyde Romero    

 

 

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On Nov 16, 2015, at 3:45 AM, Peter Rychel <dino308gt4 [at] hotmail.com> wrote:

 

Okay, so once the plugs are out, what should they be tightened to when put back in?

 

Ferrari's recommendation for the 308 is at 2 KgM (roughly translates to 14.5 lb-ft or 19.6 Nm). It "feels" about right for an aluminum head. Just as good for the Maserati?

 

As much as I'm a proponent for anti-seize, I DON'T like using it on spark plugs, because as the carrier evaporates and gets consumed but the engine, you're left behind with micro particles of metal that can fall into the combustion chamber. I've always used a drop of engine oil on the threads (and back off every so slightly on the rec'd torque values as oil tends to ramp up those amounts)...

 

Peter

 

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From: Ferrari <ferrari-bounces+dino308gt4=hotmail.com [at] ferrarilist.com> on behalf of John Ashburne via Ferrari <ferrari [at] ferrarilist.com>
Sent: November 15, 2015 7:01 PM
To: PeterGT4
Cc: The FerrariList
Subject: Re: [Ferrari] Steel plugs in aluminum heads

 

I am taking notes on all of this. Never stop learning!

 

Good luck, Rick!

 

John

Sent from my ATT Bell Rotary Dial Phone

On Nov 15, 2015, at 9:57 PM, "Doug & Terri" <dnt [at] dock.net> wrote:

Oh – and try tightening them a bit – just a tug, then try extracting.

DOUG

 

From: Ferrari [mailto:ferrari-bounces+dnt=dock.net [at] ferrarilist.com] On Behalf Of Richard Lindsay
Sent: Sunday, November 15, 2015 2:18 PM
To: DOUG <dnt [at] dock.net>
Cc: The FerrariList <ferrari [at] ferrarilist.com>
Subject: [Ferrari] Steel plugs in aluminum heads

 

Hi Friends,

I need to change the spark plugs in my old Maserati. They are really tight, and may not gave been changed in 20 years! I have not forced them free for fear of thread damage.

What tricks do you guys use to avoid thread damage? Can penetrating oil get past the crush washers? Would it be better to remove the plugs with a hot engine? Should I just avoid the problem all together?

Advice please?

-rick

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