Spark Plug Torque

woody68 · August 5, 2003

Changing the plugs on my '92 Sierra. I'm looking for torque specs. on the Delco CR43TS Plug. That is what is in my truck now and I plan to use the same one unless someone can recommend something else? I've found some general info. for various plugs but nothing for the Delco. I am using anti-seize on the threads so I plan to apply lowest recommended torque. Any info. and advice is appreciated.

Tucson_02Silverado · August 5, 2003

Don't forget to antisieze on the threads.

I don't have the actual for the 92, so if someone doesn't come up with it you could use the old standby method of finger tight then no more than 1/8 to 1/4 turn

MoJo · August 5, 2003

So, I'm assuming cast iron heads and plugs with the copper gasket? New gasket; crush the gasket and go for 15-18 ftlbs with anti seize.

Funny, as anal as I am about torque specs, I cannot remember ever using a torque wrench on plugs.

frdfandc · August 6, 2003

I use the German torque spec. Goodntight. j/k. Seriously though, just make sure you put never-leave, i mean anti-seize on the threads before you install the plugs. then just run them in with a ratchet & socket till they are tight. You should be able to tell if they are tight enough or not.