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 Ah, so it looks like “¾ of a grunt” might be equal to “hand tight then ¼ turn”! J Then 1/4 turn In victory you deserve Champagne Scars are Tattoos with better stories ! If you follow all the rules If you have no enemies, you have no character ! Confidentiality Notice: This e-mail ( including attachments ) is covered by the Electronic Communications Privacy Act, 18 U. S. C., Sections 2510-2521, and is intended only for the persons or entity to which it is addressed, and may contain confidential or privileged material. Any unauthorized review, use, disclosure, dissemination, copying, forwarding or distribution is prohibited. This email transmission, and any documents, files or previous email messages attached to it, may contain confidential information that is priviledged. If you are not the intended recipient, or a person responsible for delivering it to the intended recipient, you are hereby notified that any disclosure, copying, distribution or use of the information containes in or attached to this message is STRICTLY PROHIBITED. If you have received this transmission in error, please immediately notify us by reply e-mail at Clyde.romerof4 [at] gmail.com or by telephone at (678 6419932)and destroy the original transmission and its attachments without reading them or saving them to disk. 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)...
I am taking notes on all of this. Never stop learning! John
Sent from my ATT Bell Rotary Dial Phone 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
|
aol.com)