torque spark plugs
Le Mans Master
Joined: Mar 2004
Posts: 5,107
Likes: 171
From: Dublin CA
I would find it difficult to torque a spark plug with clearance issues between the wrench and the body. Just get them tight.
Do you have cast iron or aluminum heads? Not sure....test with a magnet. The magnet will stick to cast iron, not aluminum.
If you have aluminum heads....BE SURE to use anti-seize on the plug threads.
Do you have cast iron or aluminum heads? Not sure....test with a magnet. The magnet will stick to cast iron, not aluminum.
If you have aluminum heads....BE SURE to use anti-seize on the plug threads.
Safety Car
Joined: Jan 2004
Posts: 3,759
Likes: 8
I would find it difficult to torque a spark plug with clearance issues between the wrench and the body. Just get them tight.
Do you have cast iron or aluminum heads? Not sure....test with a magnet. The magnet will stick to cast iron, not aluminum.
If you have aluminum heads....BE SURE to use anti-seize on the plug threads.
Do you have cast iron or aluminum heads? Not sure....test with a magnet. The magnet will stick to cast iron, not aluminum.
If you have aluminum heads....BE SURE to use anti-seize on the plug threads.
Safety Car
Joined: Jan 2004
Posts: 3,759
Likes: 8
I was able to torque all the plugs on my 89 with the engine in place. I'm sure I probably used a swivel on some of the plugs though. I do believe the torque values are different for cast-iron and aluminum heads.
Safety Car
Joined: Jan 2004
Posts: 3,759
Likes: 8
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Safety Car
Joined: Dec 2007
Posts: 3,616
Likes: 5
From: Sandhills of North Carolina
I do the same as STL94LT1 and have never had an issue at all.
Slingshot
Joined: Dec 2001
Posts: 3,817
Likes: 24
From: Charlotte NC
I torqued the plugs on my 86 aluminum head L98 to factory specs and did not have any problems doing it, although the passenger side front plug required a universal adapter to get the T.W on it. All worked out just fine for me. 
Safety Car
Joined: Jan 2004
Posts: 3,759
Likes: 8
What ft/lbs is that? Just wondering if they are the same as the Haynes manual.
Racer
Joined: Aug 2009
Posts: 289
Likes: 1
From: Tucson Arizona
Steve
Drifting
Joined: Nov 2009
Posts: 1,884
Likes: 0
Le Mans Master
Joined: Aug 2007
Posts: 8,735
Likes: 412
From: WV
Good God, why make this harder then it has to be, just put them in and snug them up. Ive never used a torque wrench on a plug in 50 years and never had any problems....WW
Last edited by WW7; Mar 7, 2010 at 08:08 AM.
