dealwithit
+1y
i have the means to modify my bell housing in my shop, and the last swap i mated 2 unfamiliar items (mercedes engine/mazda trans, custom flywheel and adapter plate) using the same method im gonna use here worked well, which included custom flywheel stuff where as this will be factory mazda parts for the most part, for all the rotating assembly which is the most important part. after seeing about 4 done in miatas with a more hokey looking setup of plates, flywheel spacers, and some home done starter mount that you have to cut out about 1/6th of the bellhousing for and those all held together fine im pretty sure my plan will work just perfectly the only rotating part i need to modify in the clutch area is the ring gear for the starter. the ring diameter for the K series engines is 290mm, while the rx7 flywheel used a 300mm ring gear, so if left at 290mm when you put the starter into the rx7 bellhousing they wont meet up. now i've seen 2 ways to solve this issue. one is to move the starter in 5mm to meet up with the 290mm ring gear. the second way is to machine down the 290mm ring gear to the same size as the rx7 flywheel and slip the rx7 300mm ring gear onto whats left on the KL ring gear and leave the starter in its original position. ill see what my machinist buddy wants to turn down the gear, or maybe ill try to make a mount on my lathe and turn it against a grinder, shouldnt be to hard really, the one guy did it with just a grinder, a vice, 2 rollers and some bar stock.