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Old 07-14-2019, 08:03 PM   #101
JOHNM4843
 
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Question Re: Replacement of front brake pads and rotor

NEWBIE HERE. I'M WONDERING WHY I HAVEN'T SEEN ANY SLOTTED OR CROSS-DRILLED ROTORS ? ALSO IS ANYONE USING CERAMIC BRAKE PADS?
JOHN
[BTW, I'M NOT SHOUTING. I HAVE VISION PROBLEMS AND CAPS WORK BETTER FOR ME]
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Old 07-14-2019, 08:26 PM   #102
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Default Re: Replacement of front brake pads and rotor

Quote:
Originally Posted by JOHNM4843 View Post
NEWBIE HERE. I'M WONDERING WHY I HAVEN'T SEEN ANY SLOTTED OR CROSS-DRILLED ROTORS ? ALSO IS ANYONE USING CERAMIC BRAKE PADS?
JOHN
[BTW, I'M NOT SHOUTING. I HAVE VISION PROBLEMS AND CAPS WORK BETTER FOR ME]
I think I saw cross drilled and slotted ones if you want to pay $1000 for brake parts. I wasn't sure that would be worth it. There are Ceramic pads. From what I saw, they have more brake fade in this application, at least according to the letter ratings. These brakes are not that big for such a big vehicle, maybe that is the reason.

I was looking for a solution to display everything in caps, and I did not find one. Some screen readers will read caps one letter at a time so someone that is blind may have a harder time reading caps. It's a difficult issue. I hope this is readable for you. There are apps to zoom in on the screen. I assume you have tried that.

Regards,

Mark
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Old 07-14-2019, 08:39 PM   #103
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Default Re: Replacement of front brake pads and rotor

Slotted and drilled rotors don't brake any better with modern pad materials. At least off the track. They are more expensive and more prone to early failure, so I don't see any benefits for the sprinter.
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Old 07-14-2019, 09:21 PM   #104
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Default Re: Replacement of front brake pads and rotor

But have you seen this? The brakes on my 2005 Sprinter are in need of some care as I have a wobble in at least one wheel. I took off both the front wheels and found that locking screw to be welded over. I have not seen such a thing before and I am wondering if it is some signal to the next mechanic (me) to not use the rotors again because they have been turned? Something else?

I am thinking when I get the new rotors, trying to get the weld cap off with an angle grinder hoping to still get the Torx on it. If not, grind the whole head off leaving the bolt as an alignment stud.


This is a great thread, thank you to everyone for all the effort.
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File Type: jpg Rotor wide.jpg (405.5 KB, 63 views)
File Type: jpg Locking Bolt.jpg (195.7 KB, 62 views)
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Old 07-14-2019, 09:31 PM   #105
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Default Re: Replacement of front brake pads and rotor

Quote:
Originally Posted by SprintKon View Post
But have you seen this? The brakes on my 2005 Sprinter are in need of some care as I have a wobble in at least one wheel. I took off both the front wheels and found that locking screw to be welded over. I have not seen such a thing before and I am wondering if it is some signal to the next mechanic (me) to not use the rotors again because they have been turned? Something else?

I am thinking when I get the new rotors, trying to get the weld cap off with an angle grinder hoping to still get the Torx on it. If not, grind the whole head off leaving the bolt as an alignment stud.


This is a great thread, thank you to everyone for all the effort.
M I C - K E Y -M O U S E.

Boy, I have never seen that. Someone must have screwed up and did a quick and dirty fix. I would certainly replace the rotors and the screw. I hope that the threads and the hub is not buggered up.

Good luck to you, hope you get it out OK.

Mark
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Old 07-14-2019, 09:41 PM   #106
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Default Re: Replacement of front brake pads and rotor

I think that bolt was seized, so they welded something to the head to extract it. For some dumb reason they then put the bolt back, and cut off the nut/rod they used to extract it. You can drill out the bolt, or weld a nut to it for extraction.
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Old 07-14-2019, 11:05 PM   #107
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Default Re: Replacement of front brake pads and rotor

Quote:
Originally Posted by JOHNM4843 View Post
ALSO IS ANYONE USING CERAMIC BRAKE PADS?

I am using ceramic pads. They are supposed to be less aggressive on the rotors, but I'm not at a mileage to give any data on it. However, they are less dusty than a semi-metallic and I like that.


Also, I'm not driving around a heavy load so factor that in before deciding.
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Old 07-16-2019, 05:21 PM   #108
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Default Re: Replacement of front brake pads and rotor

Quote:
Originally Posted by Midwestdrifter View Post
I think that bolt was seized, so they welded something to the head to extract it. For some dumb reason they then put the bolt back, and cut off the nut/rod they used to extract it. You can drill out the bolt, or weld a nut to it for extraction.
Welding a piece on was effective. Re-installing the same fastener...

Quote:
Originally Posted by marklg View Post
M I C - K E Y -M O U S E.
...
Maybe it should have just been left out.

I would try tapping the lobes of the leftover weld in a counter clockwise direction with a caping chisel or dull punch. It may break the fastener loose to screw out.

That fastener is not a 100% critical part. It secures the rotor in place when the lug bolts aren't clamping the rotor. Once the wheel is torqued into place the fastener has no duty. If you can't source a replacement fastener it would be ok to re-assemble without it and install one after you get the part.

vic

Added:
Assuming using tapping for removal works, use anti-seize on the MM'd part and tap it back into place just snug using a caping chisel, etc. Replace with a proper part when convenient.
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Last edited by Aqua Puttana; 07-16-2019 at 05:51 PM.
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Old 07-16-2019, 05:28 PM   #109
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Default Re: Replacement of front brake pads and rotor

I believe they are P/N 001 990 09 14 "Pan Head Fit Bolt". Just a few bucks from a Mercedes dealer. Shipping will probably double the cost.

Regards,

Mark
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Old 07-27-2019, 06:43 PM   #110
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Default Re: Replacement of front brake pads and rotor

Anyone know what happened to PoolMike's write-up, mentioned in the first post?

Thanks everyone for your posts.... I'm learning a lot. Trying to conjure up the guts to attempt a brake job on my motor home in the storage area parking lot with minimal tools. :) :) :)
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