A different way to hook up 911 e-brakes, Another way to do the 911 parkbrake -merged threads |
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A different way to hook up 911 e-brakes, Another way to do the 911 parkbrake -merged threads |
Wes V |
Oct 4 2008, 07:07 PM
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#21
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Member Group: Members Posts: 482 Joined: 11-October 07 From: Los angeles Member No.: 8,211 |
I think I've come up with a totaly new way to hook up 911 parking brakes. It involves making up longer hybrid cables.
It's not complex, doesn't cost tons, and is about as straight forward as possible. It functions exactly as intended in the 911. Here is a teaser photo; (IMG:http://www.performanceforum.com/wesvann/914a/my-rear-brake/b-mrb1.jpg) Here is a link to my write-up on how I did it (it's a preliminary write-up). hybrid cables Wes (can somebody please find me the photo that I've seen on this site where somebody used a cable end block at the parking brake lever that had set screws) |
PRS914-6 |
Oct 5 2008, 08:50 AM
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#22
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Excellence Magazine Project 914 3.6 Group: Retired Members Posts: 1,278 Joined: 20-May 06 From: Central California Member No.: 6,031 Region Association: None |
Another thought on your idea........I don't have an arm here to look at but is there enough room to cut the arm (notch it) and weld a tube in its place with a straight shot to the mechanism? Also, I'm not sure but I'll look the next time my car is on the rack but there might be header interference with the cable out away from the arm...it's very close on a 6. Might need a tight 90 deg there.
You can draw a sketch of exactly what you want and send it to Terry cable and they will manufacture the cable perfectly as you like. |
Wes V |
Oct 5 2008, 11:27 AM
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#23
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Member Group: Members Posts: 482 Joined: 11-October 07 From: Los angeles Member No.: 8,211 |
The issue with the bell-crank solution is that it only "pulls" on one of the speaders. I'm calling it an "issue" and not a "problem" due to the fact that several people have had good results with doing it this way.
As for anchorage of the cable at the parking brake lever, I'm going to work up something using set-screws. It's kind of a no-brainer and I'm not worried about it. All of the end fittings I've seen in automotive installations are swedged (crimped) on. Terrycable will do custom cables (according to Otto's in Santa Monica), but they are pricey. Wes |
Wilhelm |
Oct 5 2008, 11:52 AM
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#24
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Member Group: Members Posts: 408 Joined: 7-September 07 From: Hooterville, OR Member No.: 8,088 Region Association: None |
The issue with the bell-crank solution is that it only "pulls" on one of the speaders. I'm calling it an "issue" and not a "problem" due to the fact that several people have had good results with doing it this way. As for anchorage of the cable at the parking brake lever, I'm going to work up something using set-screws. It's kind of a no-brainer and I'm not worried about it. All of the end fittings I've seen in automotive installations are swedged (crimped) on. Terrycable will do custom cables (according to Otto's in Santa Monica), but they are pricey. Wes The 928,944, 924 mechanism requires only a pull, not compression of the spreader, and thus may be more suitable for the bellcrank crowd. The 928 shoes are the same size as the 944 and 911 and instead of having rivets for the spreaders to push on, have notches for the mechanism to lever on much like the brake shoes of american cars. The spreader is part 20 in this pic. |
Richard Casto |
Oct 6 2008, 12:55 PM
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#25
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Blue Sky Motorsports, LLC Group: Members Posts: 1,465 Joined: 2-August 05 From: Durham, NC Member No.: 4,523 Region Association: South East States |
The 928,944, 924 mechanism requires only a pull, not compression of the spreader, and thus may be more suitable for the bellcrank crowd. The 928 shoes are the same size as the 944 and 911 and instead of having rivets for the spreaders to push on, have notches for the mechanism to lever on much like the brake shoes of american cars. The spreader is part 20 in this pic. I like the idea of the bellcrank approach because I would prefer to not make custom cables and would like to do this with off the shelf parts as much as possible. But I don't like how this does not compress the 911 spreader as it is supposed to. But the 928/944/924 pull mechanism sounds really interesting. Has anyone tried this yet? Richard |
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