I need to buy some helicoils to repair the holes on the motor, are the studs M10x1.50 or M11x1.50? thanks

 

I don't remember anything being M11 but here's a bump for someone else to answer.

 

yea, me neither, but i tried to screw one into the back of a M10 die, and it wouldnt fit, it threads into a M11 though, but loosley.

 

Found this in another thread, with the Mazda part number -

exhaust manifold stud, 0839-10-105, 55mm long, 10mm 1.50 pitch, inconel metal

BTW, I've had problems with cheap tap and die sets not being just the right size.

Dale

 

ok thanks. im gunna pick up a genuine helicoil kit from napa tomorrow,i just wanted to make sure i got the right size.