 My Brake Hose Education, Replace 'em |
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| Porsche Rescue |
 Apr 24 2010, 03:55 PM
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Saving and Enjoying Old Porsches  Group: Members Posts: 2,978 Joined: 31-December 02 From: Bend, Oregon Member No.: 64 Region Association: None  |
I have often read on this forum that you can't evaluate rubber brake lines from the outside.
Even though the hoses on my '70 looked good, no cracks, etc., I knew they were 40 years old (they have the year of manufacture on the outside). I just replaced all four. I cut the rears with a razor knife to use a 17mm socket to remove. As I had often heard, they deteriorate and close up on the inside. I cannot blow through this one at all. I can't imagine very much fluid was flowing to the caliper, if any. As soon as I bleed them I expect a test drive to show much better brakes with less pedal effort...and have a safer car. First time I have replaced the hoses on a 914 and I have owned about 15 of them in the last 10 years!  |
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| Porsche Rescue |
Apr 24 2010, 08:17 PM
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Saving and Enjoying Old Porsches Group: Members Posts: 2,978 Joined: 31-December 02 From: Bend, Oregon Member No.: 64 Region Association: None |
Lots of info on hose replacement on this forum which helped me a lot.
Here is what I did. First, I bought a good set of flare tube wrenches from Griots Garage (not expensive as most of their stuff is). You will need a good 11 mm flare wrench. The fronts are easy. Didn't even remove the wheels to replace the hoses or to bleed (but I have a 4 post lift so easy to get to things). Rears are the challenge. First I removed both heater valves. Then I applied PB Blaster to the retaining clips. I cracked the hose to caliper line first. Then I cut the hose as close as possible to the other end. Used the flare wrench and 17mm deep socket/long extension to break things loose. Removing the clip is the hard part. I grabbed the bent tab with vice grips and with much prying/wiggling/pulling they came off. Re-install is easy. Hand turn the hose to attach to upper hard line. Then you can thread it through a 17 mm box and tighten with the flare wrench. After cleaning the retaining clip and lubing it a bit, it was easily tapped into place. Lastly, connect the hose to the caliper line and tighten. I then did remove the rear wheels for bleeding and checking/setting venting clearance. The braking is much improved and requires far less pedal effort. |
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Posts in this topic
Porsche Rescue My Brake Hose Education Apr 24 2010, 03:55 PM
corsepervita HOLY MOLY! Apr 24 2010, 04:16 PM amphiduck Geez, that makes me want to take a look at mine... Apr 24 2010, 04:18 PM
markb
Geez, that makes me want to take a look at mine..... Apr 24 2010, 04:49 PM swood Looks like my arteries.
:blink: Apr 24 2010, 04:50 PM Cap'n Krusty The biggest problem with constricted hoses in not ... Apr 24 2010, 05:12 PM rick 918-S Yep, I have a full brake hose replacement planned ... Apr 24 2010, 05:19 PM Cairo94507 Boy, that scares the brake fluid out of me.
Tha... Apr 24 2010, 06:07 PM Lennies914 Ordering me some new lines today. Thanks for the t... Apr 24 2010, 06:59 PM Root_Werks :shock1: Apr 27 2010, 09:36 AM |
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