I have done this repair many times over the years and like I said naturally this work is a lot easier if you have the ability to lift the car up and down versus working off the ground on jackstands. I assume you have a large floor jack and high quality jackstands with a clean level concrete surface to work off of before you start this work.
I do not have factory Mazda repair information, and copywrite laws prevent the transfer of that information, but on web sites like ALLDATA you can get that information for a fee, but even then these sources of information might not have every exact sequence of repair, they assume that you will realize some obvious procedures, if, in this case, you are working on the front of the engine you will not be able to do some of the work without removing the right front tire and inner splash shield, so all repair information to some degree has general statements like " remove the drive belt" or "support the engine" something that might not be exact in detail
. Naturally I think a person should have the best repair manual or information available for any car or truck they own, especially if they intend to do any indepth, technical work on it. Especially for a job like this, since if you have not done the work before you will need to refer back to the information many times during repair. I can give you general steps, but again if you do not know or have the tools to do the work it will be difficult to do this repair.
Have you ever put an engine at TDC with all timing belt marks lined up on a V6 engine? Do you have a bench vise that has atleast 6 to 8 inches of travel? You will need a big vise for the job as well, to compress the timing belt tensioner before you reinstall it. Naturally you will need torque wrench, big metric sockets, breaker bar, spanner wrench and large floor jack, creeper, etc.You will also need to drain and catch the anti-freeze before starting the work and follow coolant refilling procdures once the work is done, this information would be found in the cooling system section of your repair information. I ask these questions since if you do not have the tools to do this job I would not recommend starting this job if it can not be finished.
I ask these hard questions because no matter how much information a person has, if they do not have the tools and a place to safely do a job like this it can be a big problem, if not impossible to do the work.
Do you have the tools to safely do this job?