Al Smith
Addicted to ArboristSite
That's little faster than myself.It takes me on the average about 3 hours for a complete rebuild on the average Stihl,but then again,I don't do it for a living.I can,however,disect a 10 series Mac and reassemble it in less than an hour.Then too,I've done 2 or 3.If everything goes right can change the bearings and seals in a pro stihl crank case in 30 minutes - that's cylinder off to back on again... but I now have the right tools... and some of that time is waiting for the oven to warm up. Do I just charge 30 minutes? - hell no! Someone is going to pay for those tools.