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> Another 911 E-Brake Conversion
Air_Cooled_Nut
post Sep 15 2003, 12:28 AM
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Ahhh...got it! (IMG:style_emoticons/default/rolleyes.gif) Very cool and I hope, once it's done, we get a web page tutorial on how to do it (IMG:style_emoticons/default/smilie_flagge6.gif)
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Eric_Shea
post Sep 15 2003, 11:17 AM
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Thanks Timo,

The last thing I did yesterday was move the original hand brake cable mount to the bottom of the control arm. at a 90 degree angle. I fitted some early 911 cables to it for a test fit and the come straight out. Out came the MIG welder. The mounts were a bit long after they were installed at that angle so I trimmed them down with a cut off wheel. I'm not sure this step (mounts) is necessary but I did it anyway. Seems the cable could use some support. By looking at the factory ones on Jon Lowes site I didn't notice the mount. They both came out the bottom like yours and mine though.

I'll try to get one more picture of the control arm with the new cable mounting location before it goes off to be sand blasted.

Sorry for the confusion Toby... see Rich, I told ya we'd get whacked talking about 11's here (IMG:style_emoticons/default/blink.gif)

E-out.
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Eddie Williams
post Sep 15 2003, 12:06 PM
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yes, please add a picture! don't sweat the Type 3 guy, what does he know? (IMG:style_emoticons/default/finger.gif) Welcome to the board Air Cooled Nut! For someone new and not of the 914 persuasion you sure were fast to jump and b!tch about noise ratio. Relax!
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Eric_Shea
post Sep 15 2003, 03:45 PM
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Here's the newly placed cable mount...


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Van914
post Sep 15 2003, 04:23 PM
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(IMG:style_emoticons/default/smilie_pokal.gif)

Eric,
Keep up the excellent work. You need to write a complete how to when you get done.
Thanks
Van

(IMG:style_emoticons/default/pray.gif)
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Air_Cooled_Nut
post Sep 15 2003, 04:26 PM
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QUOTE(Eddie Williams @ Sep 15 2003, 10:06 AM)
yes, please add a picture! don't sweat the Type 3 guy, what does he know? (IMG:style_emoticons/default/finger.gif) Welcome to the board Air Cooled Nut! For someone new and not of the 914 persuasion you sure were fast to jump and b!tch about noise ratio. Relax!

It's the wanna-be engineer in me (IMG:style_emoticons/default/bootyshake.gif)
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914Timo
post Sep 16 2003, 12:40 AM
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Eric,

Couple of things I have to comment.

1. I hope you have noticed that cover of the cable must move free. The end of the cover pulls the other expanding bow, that spreads the shoes. The ending of the cable pulls the first expanding bow.

2. In your pics it looks like you are not going to use any support for the brake shoes when they are in rest position. If you look your 911 control arms you will notice that the shoes have a support in the control arms so, that when the shoes are in rest position, the expanding bows are not in tension. I added 40mm wide support between the shoes and welded it to the back plate. See the pic.


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Brad Roberts
post Sep 16 2003, 12:19 PM
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NICE..

Now to stop the powder coater from coating the rear control arms I sent him..

also.. I'm now in need of a 911 rear ebrake setup. Hopefully it will work with our 930 turbo rear calipers and rotors.



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Eric_Shea
post Sep 16 2003, 01:14 PM
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(IMG:style_emoticons/default/ohmy.gif) Timo...

You're create'n more work for me (IMG:style_emoticons/default/mad.gif)

Thanks for the pics... I saw thw piece on the trailing arms but wasn't sure it was needed. Should be no problem to moidify the backing plate at this time but what do you think the implications of running without would be...?

Thanks again!

E.
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bhfast
post Sep 16 2003, 01:27 PM
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Brad, I'm using 930 rotors and calipers as well, so far everything fits nicely. I'm sending my calipers out to be machined this week, I'll let you know how everything works when I get them back. i still have to make some cables.
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914Timo
post Sep 17 2003, 12:34 AM
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Sorry Eric I didnt mention that earlier. (IMG:style_emoticons/default/sad.gif) I thought you know it....

QUOTE
....but what do you think the implications of running without would be...?


Hmmm...... I have no experience, but I think the shoes may hit the drum in the rest position. At least I dont suggest to leave it away. (IMG:style_emoticons/default/unsure.gif)
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meursault
post Sep 17 2003, 01:01 AM
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Eric,

I like your progress so far on the handbrake conversion, but I'm trying to visualize how the e-brake cables will be routed. It seems to me that they'll end up being under the engine after coming out of the center tunnel, which would imply heat issues and more complications when the engine is dropped. Or are those cables longer than I think?
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Brad Roberts
post Sep 17 2003, 01:05 AM
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Not to steal the thread... but why where'nt you with your dad at the German Autofest.. ?? he is a character. He stopped by the WEVO booth.



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meursault
post Sep 17 2003, 01:16 AM
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He didn't even tell me he was going. I called to ask him where some tool was and he just says, "Oh, I'm talking to Hayden right now." I had to put two and two together to figure out that he was up there.

Besides, my dad wasn't coming back down to San Diego until Monday morning. I had to teach that morning, so I wouldn't have really been able to go up with him.

Glad you got to meet him. Did you talk him out of that pull clutch setup of his?
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Brad Roberts
post Sep 17 2003, 01:23 AM
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Hayden tried to talk him out of it...LOL

Sometimes the wheel doesnt need reinventing.

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Eric_Shea
post Sep 17 2003, 03:38 PM
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Hi Marc,

The photos of the factory cars on Jon Lowes site show some shielding around the cable where it crosses under the exhaust. I plan on shielding the cables and then running both up the center line of the engine into the tunnel.

That and keeping my fingers crossed oughta do it... (IMG:style_emoticons/default/blink.gif)


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Eric_Shea
post Sep 17 2003, 03:48 PM
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Timo,

I'll probably cut and add the piece but... I'm not following this;

The 40mm spacer (which would force the pads "out" another 2mm total) should force them "out" toward the disc. Meaning, if left out you would actually have more disc clearance. This would have to be compensated for with the star adjuster but... there shouldn't be "dragging" issues.

I'm wondering if there's enough adjustment room with it out... both on the cable and the star. Doesn't seem like 2mm is that much though.

I have plenty of time to contemplate this one while the arms are off being blasted and while I weld on the box kits.

Anyone care to add their $.02?
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Brad Roberts
post Sep 17 2003, 03:51 PM
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We have a M471 in the one of the shops close by.. I'll look at that car and see how they did it. It has vented rear rotors and the 908 brakes.

Oh.. my .02.. dont stiffen the rear arms (you asked)


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Eric_Shea
post Sep 17 2003, 03:53 PM
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OK... I think I'm figuring this out as I type:

I think that 40mm spacer is there for the adjuster to work properly. The top of the brake shoes need a solid resting point for the star adjuster to pivot the shoes properly, otherwise is a constantly changing relationship. Meaning;

The more you adjust the star adjuster out, the more the shoe retainers would compress if the hard spacer weren't there.

How's that for a load of bullshit? (IMG:style_emoticons/default/unsure.gif)

(I think that's it...)
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Eric_Shea
post Sep 17 2003, 03:55 PM
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Oh.. my .02.. dont stiffen the rear arms (you asked)[QUOTE]

Porque?
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