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Old 06-07-2005, 09:04 PM   #1
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Just met today with President, Nat'l Sales Mngr, top technical representative and 4 other Workhorse people to review my motorhome's brake problem. Winnebago Adventurer 35U, 22,000 miles workhorse W-22 with 22.5 wheels. Both REAR rotors had cracks completely thru the outer surface, and pads were worn to about 50%. The front rotors had many concentric hairline cracks again on the outside only portion of the rotor, less wear on the pads. Calipers are the Bosch SOT-D (not sure this is exactly right) but NOT the Bosch SOPS calipers. At 22,000 this is the situation. Workhorse has agreed to pay for the rear rotors and pads and will send the hairline cracks front rotors to WEBB and Bosch for analyse. "The hairline cracks are normal and appear on many cars and trucks and should not present a problem" one of the WH people said. My question is with the "new" Bosch calipers as original equipment on my motorhome and new pads and rotors whats to say the problem will reappear in the future. " a little drag of the pad against the rotor is OK". I don't think so. The only mention of change to the SOPS and SOd-T is fine metric threads instead on coarse US threads, no mention of improved pins as such. With all the recalls of SOPS calipers and notes of replacing only damaged parts do we really have enough mieage and time to see if the problem is fixed?
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Old 06-07-2005, 09:04 PM   #2
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Just met today with President, Nat'l Sales Mngr, top technical representative and 4 other Workhorse people to review my motorhome's brake problem. Winnebago Adventurer 35U, 22,000 miles workhorse W-22 with 22.5 wheels. Both REAR rotors had cracks completely thru the outer surface, and pads were worn to about 50%. The front rotors had many concentric hairline cracks again on the outside only portion of the rotor, less wear on the pads. Calipers are the Bosch SOT-D (not sure this is exactly right) but NOT the Bosch SOPS calipers. At 22,000 this is the situation. Workhorse has agreed to pay for the rear rotors and pads and will send the hairline cracks front rotors to WEBB and Bosch for analyse. "The hairline cracks are normal and appear on many cars and trucks and should not present a problem" one of the WH people said. My question is with the "new" Bosch calipers as original equipment on my motorhome and new pads and rotors whats to say the problem will reappear in the future. " a little drag of the pad against the rotor is OK". I don't think so. The only mention of change to the SOPS and SOd-T is fine metric threads instead on coarse US threads, no mention of improved pins as such. With all the recalls of SOPS calipers and notes of replacing only damaged parts do we really have enough mieage and time to see if the problem is fixed?
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Old 06-08-2005, 02:33 AM   #3
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">My question is with the "new" Bosch calipers as original equipment on my motorhome and new pads and rotors whats to say the problem will reappear in the future. </div></BLOCKQUOTE>
Silver Fox, no one can guarantee the problem won't reappear, you must understand that. But it sounds like you've got the situation well in hand with the attention you have received from Workhorse.
Perhaps an investment in a little IR thermometer would be wise; you could check brake/wheel temps during and after trips. Excessive heat is what's causing the rotors to crack. If you bought your coach used, perhaps it had been 'abused' by someone who really hung on the brakes a lot.
Let's hope for a rosier future and that the brakes will no longer be an issue for you.
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