Let's throw some more wood on the fire. You looked up the mark vii for a 1991 or so? 1989 shows different part numbers. Funny enough, the calipers are different too.. 1989 calipers are what I put on.. eh, they were cheaper with the phenolic pistons. Too many differences :/ But them being different between the TC and the mark vii only mankes sense, I suppose.
I've got a post on nato in the brakes section.. hasn't seen a lot of activity. Funny thing, I'm thinking about stopping by the boneyard to see if there are any mark vii's there :P
While I was eating lunch.. I had a thought.. Rockauto isn't helping me verify this since it doesn't list the hydraulic unit for the TC, which is a clue...
Wonder if the hydraulics setup for the lincoln is slightly different for the mark vii so they match the calipers.. in that the teves ii systems between the two *aren't* identical.
Seek: Yea, that sounds like the more typical master cylinder/booster setup. The turbocoupe still has the hydraulic assisted Teves II system on it. There's no alternative swap for an upgrade there, that I know of.. other than swapping to a conventional setup and losing ABS.
Forgot to mention earlier, I'm still thinking like gumby.. based on everything I've tried. Going back to stock calipers restored proper braking.
Yep, tried the full bleed. All in total, I've put almost 5 quarts of fluid through the system. Pedal feels good with stock calipers, but sucks with the mark vii calipers on. Let me rephrase. The pedal is softer with the mark vii calipers but it will stop.. until you use them hard.. then you can actually put it to the floor trying to get stopped. Hot or cold, pushing hard enough, but not standing on it, moderate effort takes it to the floor.
I'm trying to figure out if I have an actual problem, or if the mark vii caliper upgrade won't apply to me. It's an 88 Turbocoupe, teves ii hydraulic boost brake system. Do the mark vii calipers work proper here? I made the swap and pedal effort is awful, sloppy, spongy. This is after putting the stockers back on to make sure the unit is bled properly (changed off the parts car.. old one was on it's way out.) Pedal checked out, so put the mark vii's back on and pedal was unchanged from before, spongy/sloppy. I can push it through to the floor. If I work the brakes really good and hard, I start to lose braking effectiveness.
Short question: Is the 73mm caliper upgrade applicable to the 88 Turbocoupe?