"Damn that's tight." Sam clamped his teeth on his lower lip
"What the hell, Sam?" Dean complained. "What do you think you're doing? Get your finger out of there, "
"Shut up, Dean." Sam snapped back. "I broke the tip off the plug. I'm trying to find it."
"That's just great. I should have never left the prep work up to you."
Dean continued to grumble. "We still have to get the rest of the plugs out, replace them and gap the sparks."
"With your help, little brother, this tune-up is going to take all afternoon."