Putting spark plugs back in anyone know the torque settings on them?

 

For used plugs 25 nM or 18.44 lb/ft
I assume this post is to accumulate toward the ten count. Welcome to the forum

 

Here is something you will need:
Engine Repair Course Code 168.pdf

 

Serious question - do people really use a torque wrench on spark plugs or do it by "feel"?

I don't think I've ever torqued one.

 

Thank you RJ237

I spent time and money converting my paper copy of that student guide so I could have it as a .pdf.
The guide was digitized onto a DVD at a 'copy-place' so it is easily transferred.
There are some personal notes on some of the pages so just ignore them.

 

I think I might have back in the early 70s when I got my Craftsman 'beam-type' torque wrench from Sears.
Still got that old thing somewhere in a toolbox.

 

I still have mine and use it occasionally to check my newer click type.

 

Harbor Freight has a nice little Digital Torque gauge that I use to check my torque wrenches.
It's gone up in price now to $50. But super easy to use. I was surprised how close some of my TQ wrenches were. BUT it did find one that was WAY off and I threw that one away fast! Has an alarm too so you don't need to be reading the display when doing a test. It can display TQ in several different units.






TQ Wrench Adapter
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It's one of the few things I don't torque:- just go by feel.

I managed to shear off #5 plug in a 3.4L XK in my teens We had to do a cylinder head R&R in case some bits had ended up in the bore, so I've trodden carefully ever since.

 

I am also a charter member of the "Never Torqued A Spark Plug Club"....

 

Even on the Italian racing cars I worked on years ago, we didn't use a torque wrench on the spark plugs. The process was tighten, then loosen, then tighten again.

 

I think most 'seasoned-mechanics' grow a biological torque wrench in the dominant elbow as part of the DNA?