I hate this project. HATE!
They are easy enough to to reach with standard tools. Changing a 911SC plugs readied me for most jobs. (The secret is locking socket/ratchet extensions)..
First plug came out easy. If anything it was under torqued to begin with. The second plug I removed barely budged. My heart rate elevated as I envisioned a stripped plug. It was so hard to twist. I called my Toyota mechanic buddy and he Said they rarely strip out. And it it did, he can fix it easy. He said to back it back in, change the rest and leave that one to him. I got a longer wrench and tightened it down. I felt it loosen up. Like some carbon freed up or something. Hmmm. I reversed the ratchet, whispered a prayer and HAIL MARY’D!! It. It loosened and came loose. More importantly, the new plug spun in easy a snugged down.
My truck specs out a plug change at 35,000 miles. This wasn’t my first rodeo. I’ve done it many times. I hate this project. Next time I’m letting my bud do it. But he’s like a q.5 hour drive away. Most honest mechanic I know. He knows I love him.
I can’t imagine changing out neglected plugs way past their expiration date. I let mine go 50k. It gave me a fright.