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05-24-2020, 03:56 PM
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#1
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Senior Member
Join Date: Mar 2013
Posts: 4,244
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WTF? Again?
I don’t understand. I’ve lost count of how many times I’ve replaced the brakes on my 2001 E250. Each time, the inside pads are completely worn, while the outside ones are about half. Today while doing maintenance I discovered that despite having only 15K miles and one year of use, once again the inside pads are shot. At the last brake job, I replaced the pads, abutment clips, calipers, caliper brackets and all the brake lines thinking one or the other was sticking. The slide pins and bushings are clean, well greased and move freely. I’ve always put a light coating of grease on the spots where the pads slide over the clips, but I assume it washes off very quickly. Both sides show the same wear, with the inside pads being the ones with excessive wear. Am I doomed to doing a yearly brake job?
__________________
Arctic Traveller
KC6TNI
2001 GTRV
Advanced 4wd
Agile Ride improvement package
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05-24-2020, 05:01 PM
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#2
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Senior Member
Join Date: Apr 2013
Location: San Francisco, CA
Posts: 3,285
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Fronts only?
__________________
Ray
Beastie 3: 2002 7.3 EB Cargo: Agile TTB, CCV High Top, Custom Walk Through, Lots of stuff added. www.BlingMyRig.com
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05-24-2020, 05:19 PM
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#3
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Senior Member
Join Date: Jan 2009
Location: Corvallis, OR
Posts: 5,300
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Permatex makes a purple brake caliper grease that is VERY persistent. I've never had any sticking issues since going to that stuff. Old piston seals can cause some stiction too, but you just addressed that with the recent swap. One thing that brake piston don't like is sitting. RVs get stiction problems frequently. But expeditors seem to go hundreds of thousands of miles between calipers.
FWIW - I get about 120,000 out of a set of front pads.
__________________
2000 E450 dually V10 wagon
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05-24-2020, 06:21 PM
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#4
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Senior Member
Join Date: Jan 2009
Location: Boulder, CO.
Posts: 2,554
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Hmm....I know this has been a dilemma. What pads you been using? maybe just the wrong composition for a heavy rig? I’ve had good luck using Akebono pads in the past, running Napa premium in the front now,
__________________
'03 Ford E350 7.3L Diesel
(de)SMB'd Custom RB-50
Quigley 4X4 w/Deavers & Agile Offroad's R.I.P. package
CCV High Profile Pop Top
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05-24-2020, 06:21 PM
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#5
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Senior Member
Join Date: Mar 2013
Posts: 4,244
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Quote:
Originally Posted by 1der
Fronts only?
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So far, just the rears, but I haven't checked the fronts yet because I've got the wheels off the back and I'm out of jackstands.
__________________
Arctic Traveller
KC6TNI
2001 GTRV
Advanced 4wd
Agile Ride improvement package
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05-24-2020, 06:30 PM
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#6
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Senior Member
Join Date: Mar 2013
Posts: 4,244
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Quote:
Originally Posted by REF
Hmm....I know this has been a dilemma. What pads you been using? maybe just the wrong composition for a heavy rig? I’ve had good luck using Akebono pads in the past, running Napa premium in the front now,
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I've run several different types, including the Napa premium, these were Powerstop extreme truck and tow carbon fiber. Common sense would seem to indicate that something is sticking, but I've replaced the calipers twice and the brake lines too and made sure everything was lubed up well. Including the original calipers, I'm on the third set. At least I caught it prior to wrecking the rotors, but not my much.
__________________
Arctic Traveller
KC6TNI
2001 GTRV
Advanced 4wd
Agile Ride improvement package
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05-24-2020, 06:37 PM
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#7
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Senior Member
Join Date: Mar 2013
Posts: 4,244
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Quote:
Originally Posted by carringb
Permatex makes a purple brake caliper grease that is VERY persistent. I've never had any sticking issues since going to that stuff. Old piston seals can cause some stiction too, but you just addressed that with the recent swap. One thing that brake piston don't like is sitting. RVs get stiction problems frequently.
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I'm beginning to think the Ford calipers are just a crappy design. It's also possible since I've changed them twice due to this problem and since you can't buy new ones, that the rebuilds are just poor quality. One thing for sure, sitting isn't a problem with my van, prior to the shutdown, I was on the road more than I was home. I'm not sure where to go from here, replacing the same old parts doesn't seem to be helping..............
__________________
Arctic Traveller
KC6TNI
2001 GTRV
Advanced 4wd
Agile Ride improvement package
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05-24-2020, 06:42 PM
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#8
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Senior Member
Join Date: Apr 2013
Location: San Francisco, CA
Posts: 3,285
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That it is happening over and over and with all new components would have me starting to look for a caliper mounting surface alignment issue relative to the rotor?? Is the rotor properly locating relative to the caliper mounting surface?? Axle flange ?Maybe grasping but something else seems to be in play here.
The pad with the piston is wearing faster?
__________________
Ray
Beastie 3: 2002 7.3 EB Cargo: Agile TTB, CCV High Top, Custom Walk Through, Lots of stuff added. www.BlingMyRig.com
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05-24-2020, 06:46 PM
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#9
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Senior Member
Join Date: Apr 2013
Location: San Francisco, CA
Posts: 3,285
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Bent mounting bolts / pins?? Been a while since I have dealt with my van brakes so do not remember all the pieces. Some components were not replaced right?
Edit: I see you said pins are moving freely and smoothly, hmmmmm....
Have you checked the PVC valve Just tripping on the V10 thread, sorry.
__________________
Ray
Beastie 3: 2002 7.3 EB Cargo: Agile TTB, CCV High Top, Custom Walk Through, Lots of stuff added. www.BlingMyRig.com
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05-24-2020, 07:11 PM
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#10
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Senior Member
Join Date: Aug 2012
Posts: 633
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Proportioning valve. How much braking is your rears actually doing?
It's just odd to me that it's so symmetrical right and left. It's my experience anything sticking or bent isn't very symmetrical.
- Eric
__________________
2005 SMB RB 4x4 6.0 PSD
A rocket on the pad is safe,
but it's not what rockets are built for.
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