 Bleeding Spongy Brakes, Proportioning Valve Questions |
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| Cjllong |
 Oct 14 2007, 11:04 PM
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Member  Group: Members Posts: 66 Joined: 2-July 07 From: Ukiah Member No.: 7,862  |
I did a rear brake pad replacement. After putting everything back together and bleeding the brakes, I still had spongy brakes. I inspected the old rubber lines and found a leak. I bought 4 steel braided brake lines and intalled them all today. I re-bled the brakes, using the family member method mentioned on Pelican Parts, and STILL have spongy brakes! (IMG:style_emoticons/default/headbang.gif) I have double checked everything and nothing leaks. The Pel. Parts article mentions bleeding the proportioning valve, but it's not very clear to me as to how it's done. Does anybody have any pics of this valve and how to bleed it correctly? I believe I still have the 17mm master cylinder and I think I'm going to have to buy the 19mm. I just have to do it secrectly, so my wife doesn't find out!! Thanks!
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| TravisNeff |
Oct 15 2007, 11:43 AM
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914 Guru Group: Members Posts: 5,082 Joined: 20-March 03 From: Mesa, AZ Member No.: 447 Region Association: Southwest Region 
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The procedure on the prop valve is to slowly unscrew the inlet (the line that comes from the shift tunnel in the cabin) with a rag around the fitting, crack and have someone pump the pedal (once will probably do), then tighten. Go to the outlet side and do the same.
Your spongy pedal may also be due to swollen pedal bushings in your pedal cluster. I finally went and got some speed bleeders, flushed the fluid until clean then used a quart of fluid (recycling the fluid) and spent a hour or two bleeding - its all good now! |
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Posts in this topic
Cjllong Bleeding Spongy Brakes Oct 14 2007, 11:04 PM
LowGT did you set the venting clearance on the rear pads... Oct 14 2007, 11:14 PM race914 At one time I developed a persistent spongy pedal.... Oct 15 2007, 11:28 AM McMark Check this thread out... Oct 15 2007, 11:59 AM davep There are a few other tricks.
Most important, do n... Oct 15 2007, 12:01 PM Cap'n Krusty Still no answer to the question "did you set ... Oct 15 2007, 12:50 PM Cjllong I did set the venting clearance, but the tech arti... Oct 15 2007, 08:58 PM Travis Neff .008 is a misprint from the factory and it got it... Oct 15 2007, 09:46 PM Cjllong I'm suprised Pelican Parts hasn't changed ... Oct 15 2007, 09:57 PM
davep Make the correction in your Haynes manual in ink. ... Oct 16 2007, 09:18 AM |
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