Ducati Monster 1100 EVO ABS Unit Removal Concerns

Started by EEL, February 13, 2015, 08:12:29 AM

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EEL

So I need to install a power commander V into my bike and looking at the cluster of crap in the way, the only option for me to get at the injector connections is to remove the air box

Unfortunately on the 1100 EVO, the airbox has this crazy sized 4 lb brick of an ABS unit bolted onto it with hard plumbed lines.

I'm not as concerned with the front brake as the line seems to flow in a standard manner but the rear brake looks to be a nightmare. It runs from the master cylinder halfway up the bike to the ABS unit and then back to the caliper.

My concern is that for the rear brake, the ABS unit becomes the high point in the entire loop. When I break the lines to remove the ABS unit, I'm going to introduce air in the lines that I wont be able to bleed out. Since the lines are hard plumbed stainless, I cant just move them to the ground so the bubbles flow to a the caliper.

Any ideas? I dont think there's enough room for a bleed nipple on the banjo bolts. How have you guys handled this in the past?

Howie

Two ideas. 

1.  Put the PC somewhere else.  You do realize you will be killing the traction too?
2.  If you are eliminating the ABS you do not need all those lines.  All you need are steel braided lines from the front master to the front calipers and from the rear master to the rear caliper.

EEL

The issue isnt the location of the PC. I've already got the location handled. Its getting to the connectors at the fuel injectors which are under the airbox. I cant tie in the PC because of access issues.

Thats why I need to remove the airbox. Since the ABS unit is bolted to the airbox it has to go first.

I'm not removing the ABS permanently just temporatily so I can get the PC-V harness wiring installed correctly.

oldndumb

I'm sure I'm not the only one who has installed a PCV on a 1100evo without needing to remove/reinstall the ABS unit. I put the PCV and an AutoTune in the space previously occupied by the flapper valve motor. The injector connections were not easy to do in situ, but you have to be smarter than the machine.

The most difficulty with my install was figuring out how to secure and hide the AT wideband connectors.

However, for other projects, I have removed the ABS unit at least twice and never had a problem with air in the system. I merely was careful, and used plugs. I bled the system at the calipers and the unit inlet fittings when done and then did about three stops hard enough to verify that the system worked ok and did not throw a light.


EEL

I'll take another look to see if I can reach the injectors. It looked really cramped in there at first pass.

When you say you bled the unit inlet fittings did you just let the brake fluid leak out the sides of the banjo or did you replace the banjo bolt with a bleeder style?

oldndumb

Quote from: EEL on February 13, 2015, 12:29:00 PM

When you say you bled the unit inlet fittings did you just let the brake fluid leak out the sides of the banjo or did you replace the banjo bolt with a bleeder style?

Following the KISS principle, I pumped each circuit and cracked the fittings. That might seem insufficient, but it worked.