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Brake Pedal Adjustment

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Adjusting the pushrod length changes the position of the brake pedal. To do this, undo the lock nut and turn the pushrod accordingly at the hexagon (see arrow).


The brake pushrod is correctly set if the dimension X is 45 + 5 mm. Perform measurement between the center of the brake pedal plate and the accelerator.


You should also check adjustment of the brake light switch if brake pushrod is adjusted.

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Well, I checked again. The gaiter is fastened at both ends with metal clamps which can only be removed by cutting them off. Is this what I need to do? Do I need to replace the clamp? And with what as the type of clamp it is isn't readily available (at least as far as I know) and it appears as though you need a special tool to afix it.

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Thanks again, Loren. I just wanted to make sure before I did something stupid (I probably will anyway, though).

I measured the distance X in the picture and after installing my Vosstek pedals I have about 39 or 40 mm, so I guess I need about a quarter inch more height to the brake.

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Well, what a b*tch of a job and all for nothing.

First, there is no room to work given the frame around the shaft. Therefore trying to remove the clamps is difficult to say the least. I finally got the rear one off, only to find two things - first, in their infinite wisdom, Porsche has used the most inflexible material known to man to make the protective gaitor out of and second, the adjustment nuts are closer to the front.

So then I went to work on the front clamp which was (can you believe it) even more difficult to deal with than the rear one. When I finally get it off, I then find that it is next to impossible to move the gaiter far enough back to get to the nuts, though with time and a lot of difficulty I finally loosen the lock nut.

I then try to turn the adjuster in the direction I think I need to move it to raise the pedal only IT WON"T MOVE! After trying for a while I think "Maybe I need to disconnect the brake pedal" because perhaps the whole thing needs to turn. After crawling under the dash (where a 7 year-old would have difficulty) I find that after disconnecting the pedal, there is not the clearance for it to turn. I hook it back up again (of course th ephone rings in the meantime necessitating me crawling out with difficulty).

So I figure I would try turnng the adjuster the other way and voila! it turns. However due to no clearance, all I can do is turn it a half flat at a time.

After a few turns I check the pedal and it is lower than before, so obviously that is the wrong way. I turn it back, and find that the original setting IS AT THE LIMIT OF ADJUSTMENT. I tighten up the lock nut, struggle to get this inflexible gaiter back on the flanges.

So my pedal is no better than before. I decide to take the Vosstek pedal off the clutch and put them both on the brake (the supplied bolts are long enough) and put the rubber back on the clutch. I measured the difference in height of the brake and gas and it it in spec.

I will find out at Pocono tomorrow.

All in all, one of the worst car experiences I have ever had trying to do anything on any car I have ever owned. Made all the worse by not being able to accomplish anything!

Or did I just miss something and did it all wrong?

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