Changing out a plug in 2007 Yaris sedan

[Toolaholic]

Getting misfires on cylinder 1( started a thread on that). Wanted to look at plug . Here’s some pics and tips.

[Toolaholic]

Thexton 492 spark plug starter . Old plug boot or rubber hose works too. If plug is cross threaded hose will slip

[Toolaholic]

Plug threaded in

[Toolaholic]

I then bottom it with extension /spark plug socket. I have a 1/4 adapter for 1/4 torque wrench. I spin up and down to make sure plug moves freely and no cross thread. It will feel gritty because of carbon deposits on threads in spark plug hole.

[Toolaholic]

Torque spec is 13 lb ft or 156 inch lbs. I set wrench to 170. I’d rather err slightly tighter than looser. 1/2 turn seated plug gaskets. I actually loosened again and spun plug up and down to again checking for cross thread.. Torqued again this time 1/4 turn til click because gasket on plug was crushed. If the plugs been in a awhile sometimes a 1/8 turn will click.

[Toolaholic]

Super lube dielectric grease in coil . A dab put in top of boot.

[Toolaholic]

Torquing coil 10mm bolt to 80 inch lbs.

[Toolaholic]

Torquing cover 10mm bolts to 80 inch lbs

[Toolaholic]

And if you loose the insert washer on top of cover a 7/8 washer fits