Well, we're in a bit of a pickle over here. We need to replace the master cylinder on the ITA RX-7. As far as the previous owner knew, the brakes in the 1980 tub had been swapped out for brakes from a 1983 to get the discs in the rear. So I get a 1983 master cylinder. And it's different than the one in the car! I've put some pictures together at



http://nutdriver.org/bp.html



If any of you folks know Gen1 RX-7s well enough to identify them from the pictures, I'd sure like to hear from you. Thanks in advance, Lefty

The one that is on it is an 1980 MC

yeah thats an 80 master in the car

Many thanks for your help, guys. I think we've got it sorted. Now we'll see if we get the right part from the depot. :-)

Maybe the previous owner swapped the brake proportioning valve and not the master cylinder?

It's a track car. The stock proportioning valve is gone and a "screw type" replacement lives in the cab, just beside my thigh when I'm driving. :-)

the m/c should have been changed due to the fact that there IS a difference between one for disc rear and drum rear. that's why when u go to buy one, they'll ask u if it's drum or disc rear. if u told them disc, u got the right m/c.