Still another 911 e-brake thread, there are many like it but this one is mine.... |
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Still another 911 e-brake thread, there are many like it but this one is mine.... |
John |
Jun 28 2006, 12:56 AM
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#41
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member? what's a member? Group: Members Posts: 3,393 Joined: 30-January 04 From: Evansville, IN (SIRPCA) Member No.: 1,615 Region Association: None |
Eric, since you asked so nicely in the thread that we hijacked, here are some pics of my e-brakes using stock 914 brake cables. I just finished them up, and there are some slightly fuzzy pics, but here they are..... (pre-blog even)
Attached image(s) |
John |
Jun 28 2006, 01:12 AM
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#42
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member? what's a member? Group: Members Posts: 3,393 Joined: 30-January 04 From: Evansville, IN (SIRPCA) Member No.: 1,615 Region Association: None |
5 clicks and they are SOLID.
I wanted to utilize standard cables so they can be replaced if required and so others may benefit from this approach. I created a pivot by drilling a hole in the trailing arm and welding a nut over the top of the hole (so that the threads could extend into the trailing arm. I am using a shoulder bolt with a bronze bushing as the pivot. The belcrank I designed is as thick as would easily fit inside the stock 914 cable ends (3/16"?) . I played with the geometry until I felt comfortable that the stock brake handle would provide enough travel to actuate the e-brakes, and came up with the location of the pivot point. I made one modifications in the middle that didn't show up well in the pics. The 40mm anchor block that I originally welded to the backing plate was cut off of the backing plate and welded to the trailing arm for strength. Through trial and error, I decided not to utilize the small helper spring for the bow-ties. I am also only using single bow-ties to expand the shoes. I read somewhere that some later 911's were done that way (but I didn't verify that). So far, they work well beyond my expectations. They feel as solid as the ones in my 911 Turbo. (I know I need to touch up a few scratches I made in my paint. Luckily I didn't scratch through the POR-15 anywhere. |
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