I recently decide to rebuild the brakes on my 1972 142s. While I was at it I figured why not put the vented discs and calipers (ate)front and rear for a 164, thinking it would be an upgrade. I now can't get a good pedal, it is very low, soft, and spongy as if it has a lot of air in the system. I have flushed out the system, bled it according to the manual, replaced the MC, (bench bled first) bled everything from the top down, yet no change?
Is it just not compatible to put the vented rotors and calipers on a 142 or am I missing something?
I would appreciate any suggestions.
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