If, on a 87turbo, I put the flywheel and counterweight off a 87N/A, am I safe? The only reason I mention this is somewhere I remember reading *the flywheel, counterweight and rotors are a balanced assy*. This stuck in my head, in particular the mention of the rotors in conjunction with the other two. Here is the Mazdatrix page I saw that remark, its located down the page where they mention all three. http://www.mazdatrix.com/b5.htm

 

Mazda flywheels for manual transmission have the counterweight built in,so if you stick to the correct series engine then switching flywheels is OK.So if you put a 86-88 N/A flywheel on 87-88 TII you will have the correct counter weight at the flywheel.(this assumes that you have rotors and front counterweight correct for the TII motor)

 

Thank you Six Rotors. I was trying to read too much into their statement at Mazdatrix where they put in bold letters AND ROTORS. They gave a good example at the end but I was fixated on the word rotors. And I did know that the rear counterweight was incorporated in the flywheel assy but did not realize that I would not have to change the front counterweight until I read where all the 13B in the years I'm interested in use the same counterweight. So I'll just swap the flywheels and press on with the wiring.