torque spark plugs
03-06-2010, 11:41 AM
#2
Le Mans Master
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.
03-06-2010, 01:03 PM
#3
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.
03-06-2010, 01:29 PM
#5
Le Mans Master
As far as I know (Helms Manuals) 22 ft/lbs all heads - the only way to accomplish this is with the Heads removed. Install the plugs with the correct torque before you install the heads.
03-06-2010, 01:52 PM
#6
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.
03-06-2010, 01:59 PM
#8
03-06-2010, 02:55 PM
#9
Le Mans Master
I do the same as STL94LT1 and have never had an issue at all.
03-06-2010, 05:27 PM
#13
Slingshot
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. 
03-06-2010, 05:39 PM
#14
What ft/lbs is that? Just wondering if they are the same as the Haynes manual.
03-06-2010, 09:17 PM
#15
Racer
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Steve
03-06-2010, 10:03 PM
#17
Drifting
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03-06-2010, 10:39 PM
#18
Team Owner
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St. Jude Donor '05
With old threads Id be worried about a failure. Get them good and snug, maybe add a touch of oomph thats it. Yeah I know, neanderthal.
03-07-2010, 08:06 AM
#19
Le Mans Master
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; 03-07-2010 at 08:08 AM.
03-07-2010, 09:48 AM
#20
