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Finished Caliper replacement W123
Well I finished replacing my Calipers....I had the left rear inner piston sticking but did all four so I would have piece of mind. I did the rear 2 nights ago...Remanufactured calipers, new rotors, and new texel pads. You could definately tell I had brakes dragging. Had more pep off the line. Last night I replaced the front calipers, I kept the old pads and rotors till I have time to do the wheel bearings...at 151K I think I will put new ones on it rather than take the time to clean and repack the old ones that likely have never been repacked, I will put new Texel pads on it along with new rotors at that time, the car now required less effort to stop than it ever did since the fronts were replaced also. The brake fluid that came out of the lines was pretty nasty looking....very dark...obviously pretty old. Point to make to you folk who haven't flushed yours to consider doing it the next nice day. I always felt the brakes on my W123 were inferior to my W116 as they required more effort to stop the car.....with a fluid flush and 4 new calipers I change that assesment...the brakes now feel on par with my W116.
Funny thing I noticed doing this...I couldn't find a brand on the original rear calipers and since I grabbed generic pads to buy me time since one rotor gat chewed up going metal on metal due to the stuck piston I "assumed" it was the more common Bendix Calipers...I decided after a lot of thought to do all four so ordered 4 bendix calipers. Last night Pulling the front caliper I was shocked to see ATE on the caliper...so I HAD ATE calipers and nor bendix....well I prayed the ATE pads would fit the Bendix calipers since pars books show different part numbers for either....well they fit ..so I can finish the rest on the next fairly warm sunny day and not be working in the dark (except for a trouble light) freezing my behind off. I have no idea why parts catalogs shows different pads for ATE and Bendix calipers when they both are identical. as I had the old and new pads side by side to compare.
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Proud owner of .... 1971 280SE W108 1979 300SD W116 1983 300D W123 1975 Ironhead Sportster chopper 1987 GMC 3/4 ton 4X4 Diesel 1989 Honda Civic (Heavily modified) --------------------- Section 609 MVAC Certified --------------------- "He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you." - Friedrich Nietzsche |
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good
work. glad you are happy with results.
in my experience the ate calipers out number the bendix about 10 to 1. dont know production numbers though. tom w
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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC] ..I also have a 427 Cobra replica with an aluminum chassis. |
#3
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I did the side by side comparson also and never noticed a difference. Who knows maybe a micrometer would find it? Danny
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1984 300SD Turbo Diesel 150,000 miles OBK member #23 (\__/) (='.'=) This is Bunny. Copy and paste bunny into your (")_(") signature to help him gain world domination |
#4
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THe back was a no brainer...I had one that definately was sticking recently. But wasn't contributing to the higher braking effort the car had required since I bought it..
__________________
Proud owner of .... 1971 280SE W108 1979 300SD W116 1983 300D W123 1975 Ironhead Sportster chopper 1987 GMC 3/4 ton 4X4 Diesel 1989 Honda Civic (Heavily modified) --------------------- Section 609 MVAC Certified --------------------- "He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you." - Friedrich Nietzsche |
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i have always
found that the pads were the same no matter which brand caliper you use.
tom w
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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC] ..I also have a 427 Cobra replica with an aluminum chassis. |
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Well this has inspired me to some degree. Have one 123 that the brakes seem sub standard in comparison to the other 123s. Booster seems to be ok and pads seem good. Although to be fair I never deglazed them. Paricularly no obvious sticking calipers. Rebuilt master cylinder more as a precautionary thing when first aquired car. Guess will know what i am going to be doing to that brake system this spring. Will deglaze and reinstall pads first just to check. Do not like the pedal effort required on this car and has been the same since i got it.I kind of suspect yours felt much the same before you did the job. Almost makes a guy wonder if the pistons get hung up a little as they are extending. Seems impossible though. My bet is still the pads have a low coefficent of friction from previous usage. The good thing about your calipers replacement is since you notice less drag the rotors and pads will wear a lot slower.
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#7
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so the change was purely calipers and had nothing to do with the pads. IT went from compairitively heavy brakes to very light as my W116 has....so now you can put the passenger through the windshield with a light tap of the brakes rather than stomping on them.
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Proud owner of .... 1971 280SE W108 1979 300SD W116 1983 300D W123 1975 Ironhead Sportster chopper 1987 GMC 3/4 ton 4X4 Diesel 1989 Honda Civic (Heavily modified) --------------------- Section 609 MVAC Certified --------------------- "He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you." - Friedrich Nietzsche |
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hoses?
did you replace the brake hoses as well?
if you didn't it is always a good idea to do them when replacing the calipers. the hoses themselves have been known to cause dragging and not allowing the pistons to not return properly. they are less than $20 each. good practice and you are already there. |
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__________________
Proud owner of .... 1971 280SE W108 1979 300SD W116 1983 300D W123 1975 Ironhead Sportster chopper 1987 GMC 3/4 ton 4X4 Diesel 1989 Honda Civic (Heavily modified) --------------------- Section 609 MVAC Certified --------------------- "He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you." - Friedrich Nietzsche |
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********.com has hoses for less than 10$ at the moment, pretty good deal! I'm going to be rebuilding my rears soon (they are trashed, but functional), and I got a set of hoses to go with the replacement. Plus, with new hoses, I can use vice grips on the old hoses to prevent the fluid from draining out while doing the rebuild.
peace, sam
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"That f***in' biodiesel is makin' me hungry." 1982 300TD Astral Silver w/ 250k (BIO BNZ) 2001 Aprilia SR50 Corsa Red w/ 5.5k (>100 MPG) |
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be careful using the vise grip method, i have seen that damage the hoses as well |
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__________________
Proud owner of .... 1971 280SE W108 1979 300SD W116 1983 300D W123 1975 Ironhead Sportster chopper 1987 GMC 3/4 ton 4X4 Diesel 1989 Honda Civic (Heavily modified) --------------------- Section 609 MVAC Certified --------------------- "He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you." - Friedrich Nietzsche |
#13
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peace, sam
__________________
"That f***in' biodiesel is makin' me hungry." 1982 300TD Astral Silver w/ 250k (BIO BNZ) 2001 Aprilia SR50 Corsa Red w/ 5.5k (>100 MPG) |
#14
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__________________
Proud owner of .... 1971 280SE W108 1979 300SD W116 1983 300D W123 1975 Ironhead Sportster chopper 1987 GMC 3/4 ton 4X4 Diesel 1989 Honda Civic (Heavily modified) --------------------- Section 609 MVAC Certified --------------------- "He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you." - Friedrich Nietzsche |
#15
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why not let the fluid drain out? you have to bleed the system anyway, good time to remove and clean the reservoir and add nice clean DOT4
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