Spark Plugs - Anti Seize compound or dry fit?

Welton · Dec 11th, 2019, 07:54

What's the recent thoughts on this? I've always dry-fitted and tightened 'by feel' but should we be adding products to the threads and torque-tightening spark plugs?

Clan · Dec 11th, 2019, 10:30

Quote:

Originally Posted by Welton

What's the recent thoughts on this? I've always dry-fitted and tightened 'by feel' but should we be adding products to the threads and torque-tightening spark plugs?

The official volvo line is when screwing spark plugs into a cast iron head , use engine oil but alloy heads nothing , the lubricant can carbonise in between the threads and jam them up , just use dry and torque to the correct figure and you will have no problem ..

Welton · Dec 11th, 2019, 13:50

Many thanks, I actually haven't researched the torques yet, for the T5.

Clan · Dec 11th, 2019, 14:29

Quote:

Originally Posted by Welton

Many thanks, I actually haven't researched the torques yet, for the T5.

Only 25 nm ....

Welton · Dec 11th, 2019, 14:53

Haha thanks Clan, my response was a cheeky question which you very kindly answered - thanks mate.

Dippydog · Dec 11th, 2019, 17:05

I've always fitted plugs "dry" screwed down by hand with socket and extension and then fitted ratchet and given them a final "nip",never had any bother doing them this way.

phil1968 · Dec 11th, 2019, 17:22

There is a line of thought that says because the threaded portion of a spark plug provides contact to the engine cylinder head for electrical conductivity you shouldn't apply any kind of lubrication, but I've always put a very light smear of Copperslip on the threads of plugs on all my cars / bikes over the years with no ill effect.

dingov70 · Dec 11th, 2019, 18:51

I know I keep harping on about this subject , BUT ............................ I use Febi or similar ceramic grease on anything subject to heat .

Injectors ( diesel ) turbo linkages ,mating faces of brake discs & brake pads , manifold studs Etc . The Febi grease is white & chuffing expensive & the Ceratec I also used slightly yellow , but much cheaper

Dec 11th, 2019, 07:54	#1
Welton Premier Member Last Online: Sep 14th, 2021 17:03 Join Date: Feb 2009 Location: Market Harborough	Spark Plugs - Anti Seize compound or dry fit? What's the recent thoughts on this? I've always dry-fitted and tightened 'by feel' but should we be adding products to the threads and torque-tightening spark plugs? __________________ 2005 S40 T5 SE - Manual. Bilstein B4's. (For Sale) 2010 Citroen C4 1.6 HDi (bizarre Gearbox model). 2010 Renault Twingo (refreshingly simple) 2018 Infiniti Q30 1.6T Business Executive (what's this button do?)

Dec 11th, 2019, 13:50	#3
Welton Premier Member Last Online: Sep 14th, 2021 17:03 Join Date: Feb 2009 Location: Market Harborough	Many thanks, I actually haven't researched the torques yet, for the T5. __________________ 2005 S40 T5 SE - Manual. Bilstein B4's. (For Sale) 2010 Citroen C4 1.6 HDi (bizarre Gearbox model). 2010 Renault Twingo (refreshingly simple) 2018 Infiniti Q30 1.6T Business Executive (what's this button do?)

Dec 11th, 2019, 14:53	#5
Welton Premier Member Last Online: Sep 14th, 2021 17:03 Join Date: Feb 2009 Location: Market Harborough	Haha thanks Clan, my response was a cheeky question which you very kindly answered - thanks mate. __________________ 2005 S40 T5 SE - Manual. Bilstein B4's. (For Sale) 2010 Citroen C4 1.6 HDi (bizarre Gearbox model). 2010 Renault Twingo (refreshingly simple) 2018 Infiniti Q30 1.6T Business Executive (what's this button do?)

Dec 11th, 2019, 17:22	#7
phil1968 Master Member Last Online: Jul 27th, 2020 23:19 Join Date: Aug 2015 Location: Chatham	There is a line of thought that says because the threaded portion of a spark plug provides contact to the engine cylinder head for electrical conductivity you shouldn't apply any kind of lubrication, but I've always put a very light smear of Copperslip on the threads of plugs on all my cars / bikes over the years with no ill effect. __________________ 2008 C70 D5 SE Lux Nav Geartronic

Dec 11th, 2019, 18:51	#8
dingov70 Master Member Last Online: Apr 16th, 2024 06:48 Join Date: Jan 2015 Location: Blackpool	I know I keep harping on about this subject , BUT ............................ I use Febi or similar ceramic grease on anything subject to heat . Injectors ( diesel ) turbo linkages ,mating faces of brake discs & brake pads , manifold studs Etc . The Febi grease is white & chuffing expensive & the Ceratec I also used slightly yellow , but much cheaper __________________ To stupidity & beyond

Dec 11th, 2019, 17:05	#6
Dippydog Premier Member Last Online: Yesterday 18:24 Join Date: Jun 2016 Location: S****horpe	I've always fitted plugs "dry" screwed down by hand with socket and extension and then fitted ratchet and given them a final "nip",never had any bother doing them this way.

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