Thanks Toasty. Weird. I've gone through half a dozen OEM Gen 1 Sport BMCs over the years and none of them have it. My '03 still has the original - doesn't have it. My little '97 was replaced four years ago with an OEM new - not rebuilt - BMC, it doesn't either. I've replaced the big Sport's three or four times over the years. One aftermarket from Napa and 2-3 OEM new units from Mitsu. I know for certain the aftermarket didn't and none of the OEM ones have had it either.

Do you have any idea what its for? The 3G BMC is definitely not reasonably tight. Its not even kinda snug. If you flip it on its side more than 90 degrees it just slides out. Its not so loose that it rattles around but ....

I'm taking the big Sport in tomorrow morning. The tech is going to do a brake pressure test (front/rear) on the existing system, swap in the 3G BMC, and then do another pressure test. I want a benchmark and an 'after' reading before/if I start messing with an adjustable proportioning valve.

Stock readings are in the FSMs. Be interesting to see what he comes back with. I've started paying more attention to the difference between my '97 & '99 with the 15/16" BMC and my '03 with the 1". There is DEFINITELY a difference. Both the Gen 1s had the brake system completely gone through in the last three weeks and the '03 flushed, bled etc. last year. Brake performance feels the same, but the Gen 1s have a much firmer, higher pedal. The '03 feels more like my big Sport, with a little more pedal travel and a little 'squishyier'. Takes less pressure on the pedal to haul down the Gen 1s compared to the '03. The behavior is about what I now expect based on the reading I've done.

Edward