Venting Clearance Problem

[pheasant1894]

So everything was going smoothly during my 914 1.7L brake job until I was setting the venting clearance on the rear left inner pad. I cannot seem to get the inner 4mm hex screw to bite the venting gear. Any suggestions?

As background, I previously removed the caliper and backed both venting clearance screws all of the way out so I caould install new pads. I also used a c-clamp to push the pistons in a little more because I has dome issues installing the new pads. Now I think that I pushed the piston in too far and the venting clearance screw is not engaging the gear. There is resistance so it does not seem to be stripped but it is clearly not moving the piston.

I tried tapping the e-brake lever in a bit as suggested in a previous post. But no luck.

Any help would be much appreciated.

Thanks--

[esses62]

Are you sure the gear is inside. Was there a cap on the adjuster before you started the brake job? It may have worked loose. It can sometimes pull out when you retrack the hex key. I know it's tough to see but get a flashlight and a mirror and try to inspect the adjuster from the inside of the control arm access port.

-another possibility is that when you unscrewed it to fit the pad you unscrewed it too much and the thread disconnected from the piston. I did the same thing after rebuilding my first set of rear calipers. Now that was fun.



Scott

[pheasant1894]

Thanks for the help.

I figured it out and thought that I would post the solution.

It turns out that I did press the inner piston in so far that I think I disengaged the venting clearance screw. The solution was to remove the pad and press the piston IN FURTHER while turning the venting clearance screw. This allowed the venting screw to re-engage and the piston then moved out the way it was supposed to.

Just thought that I would share what worked for me.

Thanks--