My post wasn't asking whether 2.6 hrs for a water pump was reasonable or not, that's just what the book listed. Of course you can do it in less time, but if your running a business you usually charge the flate rate time or your not gonna make money..
The book works for both the customer and the tech...
On the tech side - I won't charge any more than the allotted time in the book (unless there are adds due to corrosion, broken parts etc.) whether it takes me the same amount of time or half the time.
On customer side - if it takes more than the allotted time you only get billed for the allotted time, the extra time is just on us.
And I agree with Boobie, as many SW engines take a considerable more time depending on what is corroded - hasn't been touched in years..lol
Even with some of the older Evinrudes, the way they made the shift rod connection (underneath the front of the block) is insanely hard to align back up and get the screw back in it...I' have done quite a few of those motors, some are easier than others. This service
https://edubirdie.com/ helps me with professional writing samples and analyzes on any book or manual.