Brake bleed debacle - Ducati.ms - The Ultimate Ducati Forum
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post #1 of 17 (permalink) Old Apr 8th, 2019, 4:43 pm Thread Starter
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Brake bleed debacle

I've bled brakes on other bikes, I've watched more YouTube videos than I can count, read posts on this forum so how could I actually make this lousy rear brake worse??!! I even bought a reverse bleeder and put a bleed valve on the ABS module. I just want to open up all the valves and then open up a vein and bleed out together! FML
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post #2 of 17 (permalink) Old Apr 8th, 2019, 5:14 pm
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I've bled brakes on other bikes, I've watched more YouTube videos than I can count, read posts on this forum so how could I actually make this lousy rear brake worse??!! I even bought a reverse bleeder and put a bleed valve on the ABS module. I just want to open up all the valves and then open up a vein and bleed out together! FML
Hey, consider yourself lucky that you have the option to add a bleeder to the ABS module. That unit is completely tucked away on the DVT bikes.
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post #3 of 17 (permalink) Old Apr 8th, 2019, 5:18 pm
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If the rear brake is the same as most Ducatis, the bleed nipple is at the bottom of the caliper instead of the top. You'll never get all of the air out with the caliper installed on the bike.

Remove the caliper and flip it upside down so the bleed nipple is at the top - then bleed it as usual.

Depending upon the stock setup, you can either flip the caliper upside down and place it on the rotor or, take a piece of bar stock and slide it between the brake pads. This is the rear brake on my 1198 but I use the same procedure on my Diavel and it works just as well.
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post #4 of 17 (permalink) Old Apr 8th, 2019, 8:12 pm Thread Starter
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Does your 1198 or Diavel have a tremendously useless rear brake? I have tried everything else so I may as well do this too. The reason I bought the reverse bleeder was so I didn't have to remove the rear caliper. Ugh! What I don't understand is that the front caliper bleed nipples are on the bottom so how come you don't have to do that to the front too? If I had any faith in the dealer, I'd just bring it there
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post #5 of 17 (permalink) Old Apr 8th, 2019, 8:31 pm
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I think the shitty rear brake is standard equipment on all Ducati's

My 1098, 1198, and Diavel have all been the same. But none of them have the bleed nipples on the bottom of the front calipers.
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post #6 of 17 (permalink) Old Apr 8th, 2019, 8:39 pm
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This and the DVT service are two things I just chalk up to cost of ownership and take to dealer. Even if I had the garage space and time/tools it's a major PITA. Let a deep pocket authorized dealer make your brakes work.

I reserve the balance of my saved time on keeping it clean, extending the life of the very expensive chain, slathering plastic friendly product on, and looking for the endless conga line of loose fittings.

When I lived with a tech buddy and the Snap-on vacuum brake sucker thingy we would tag team and car/truck/bike with a gallon of DOT3 and voila! No more...

I'm OK, you're OK
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post #7 of 17 (permalink) Old Apr 8th, 2019, 10:46 pm
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What I dorm which gets me to a sort of acceptable rear brake is this...

I unmount the caliper and undo all the clips that remain the brake line. That gets me enough free ply that I can put the caliper on the rear seat, and with some careful use of twine, I can keep the brake line routed so it doesn't dip or create a low spot on its way up to the seat.

Then I use my Motive power bleeder (the cap I had for my Lotus and my BMW conveniently fits the rear reservoir) filling it with a liter or more of fluid, pressurizing it, then letting it pump almost all of that fluid through the system at pressure.

I wish there was a way to trigger the ABS pumps while doing this but thatís a pipe dream. I am reasonably convinced that the last air bubble Iím trying to eliminate is in the plumbing for the linked brakes and thus not part of the regular fluid path. Maybe.

Anyway, I can lock up the rear, even if it is a little spongy. And I can definitely feel the difference when the computer is doing the linked braking thing as it firms up all of a sudden.

Itís livable. If it starts to irritate me I just wind on and pop a small wheelie. Then all is well.
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post #8 of 17 (permalink) Old Apr 9th, 2019, 5:51 pm
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Question

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Originally Posted by pcv57 View Post
What I don't understand is that the front caliper bleed nipples are on the bottom so how come you don't have to do that to the front too?
Can you please share a pic of your front caliper showing this?

'10 MTS1200 S
'00 VTR1000f
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post #9 of 17 (permalink) Old Apr 9th, 2019, 6:03 pm
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I’ve worked at a motorcycle shop for the past 4 years servicing quite a few bikes. I’ve never seen a front caliper with the bleed nipple at the bottom.
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'10 MTS1200 S
'00 VTR1000f
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post #10 of 17 (permalink) Old Apr 10th, 2019, 10:00 am
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On my 2011, I put the bleeders on the ABS unit, then I always reverse bled the back brakes. Super-easy, takes 10 minutes and it's done.

I got the giant syringe-thingy from Aerostich.

2018 Multistrada 1260 S Touring
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