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Morrie Morrie is offline
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Join Date: Nov 2001
Location: Austin, TX
Posts: 1,417
Hi, Mickey,

Since I also have a 68 912, and have had others... I can be somewhat of a real world reference. In response to Walt's wondering if the 68 MY came with a dual MC or single ckt, it was the first year of the dual. This also did away with the pressure switch on the MC for the brake lights, and went to the mechanical switch on the pedal cluster that continued on well beyond the demise of the 912.

The comment about a "Hard" pedal is confusing to me. It is possible you are bottoming out in the master cylinder. There are two different lengths of actuator rods used. The pre-68 actuator rod for the single circuit master cylinder is longer than the one for the dual master cylinder. Something to search out as you "might" have the wrong one.

Also, I have heard bad things about the non-ATE master cylinders and early life failures from them. Do you happen to know if your replacement was an original ATE or not?

The pedal on these cars is not rock solid hard stop. There is some give, or "sponge" feel that is not present in a power brake car. If your pedal feels like a modern car with the ignition off and booster not operating, then you definately have something amiss.

All this aside, how is the actual stopping capability of the car? Does it stop quickly when firm pressure is applied? You have to sort of stomp the pedal to lock up brakes on these, but that too is dependent on other factors, such as your brake pad compound, but I digress....
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68 912 Coupe, 76 914 2.0 backdated, 76 912E SR Coupe"
Gone but remembered- 76 911S SR Coupe "The Clown Car", 89 944S2 SR Coupe, 76 912E "Green Rat", 67 912 outlaw, 68 912 Coupe, 87 924S
Old 09-02-2016, 11:47 AM
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