Got a couple sunny days coming up (I hope) So to re-torque the head, it's loosen the bolts 1 at a time, and re-tighten, or take them all loose (just half a turn ?) and then zig-zag around the head tightening them up again ? (Which means pulling the rockers and re-doing the valve lash afterwards to get to 2 of the head nuts) Do it while ice cold ? Warm ? Toasty hot ?
And the carbon, the exhaust looks to be burning nice and clear, but I'm seeing fluffy buildup outside the muffler. If I pull the injector, do I have to replace the copper washer, and is NAPA auto parts likely to have one that will fit ?