WHEN anti-size is used on spark plug threads prior to installation, what percentage of torque have you folks backed off from the dry spec?
I did the 30k plug change on my Tacoma and it feels like I set the torque a bit low, but the math works out based on the info I can find.
Toyota factory dry spec = 15 lb-ft
Denso's own spec for this specific plug (K20HR-U11) is 15-22 lb-ft in an aluminum head.
Denso also says to reduce torque by 30% when using anti-seize.
So I did 15 lb-ft minus 30% = 10.5 lb-ft torque on each plug.
It drove fine and didn't feel like I lost any power. All good I guess?
I did the 30k plug change on my Tacoma and it feels like I set the torque a bit low, but the math works out based on the info I can find.
Toyota factory dry spec = 15 lb-ft
Denso's own spec for this specific plug (K20HR-U11) is 15-22 lb-ft in an aluminum head.
Denso also says to reduce torque by 30% when using anti-seize.
So I did 15 lb-ft minus 30% = 10.5 lb-ft torque on each plug.
It drove fine and didn't feel like I lost any power. All good I guess?