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Old May 12th 2019, 02:10 PM   #1
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V4 oil leak

Has anyone else experienced an oil leak coming from the chain side of the engine... behind the black plastic cover and up. It is also running down on the rear header aswell?

Also. My front brake went soft... I dont track... and I dont think I ride too hard on the streets. Is they any recalls for the front brakes out right now?
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Old May 14th 2019, 12:01 AM   #2
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Originally Posted by Joehruv4 View Post
Has anyone else experienced an oil leak coming from the chain side of the engine... behind the black plastic cover and up. It is also running down on the rear header aswell?

Also. My front brake went soft... I dont track... and I dont think I ride too hard on the streets. Is they any recalls for the front brakes out right now?
I had the same issue!!!! The seal ring is damaged and need to be replaced.
My both brakes (front and rear) went soft. I ride it very smoothly on the street and never go on track... This motorcycle is an italian piece of shit for a lot of money


Last edited by Hunter92; May 14th 2019 at 12:06 AM.
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Old May 14th 2019, 10:41 AM   #3
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Whatís this talk of brakes going soft? How? When? Where? What? Why?


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Old May 14th 2019, 10:53 AM   #4
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Originally Posted by Motzarelli View Post
Whatís this talk of brakes going soft? How? When? Where? What? Why?


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I bleeded the rear brakes by myself and after 3 weeks it went soft again...
shit construction... the caliper should be on higher position than the master cylinder...
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Old May 15th 2019, 10:06 AM   #5
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V4S Output Shaft Seal Leaking Oil

I have a 2018 V4S with only 270 miles on it. My output shaft seal is also leaking oil. Did you find that the seal was damaged based on it being defective from the seal manufacturer, or was it damaged due to improper installation by someone on the Ducati assembly line, or was the seal damaged by imperfections in the output shaft itself such as scratches, marring, pitting etc?

I'm sending a letter to Ducati, because this absolutely unacceptable quality control. I smell a potential recall....

My bike is at the dealer being repaired under the warranty, but never-the-less I don't want the same issue to re-occur only days or weeks later.... Thus the need to understand the true root cause.

Picture of the leak
https://drive.google.com/open?id=1pS...Nj5Qfxmw9vLmHT
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Old May 15th 2019, 11:23 PM   #6
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Originally Posted by m3chanix View Post
I have a 2018 V4S with only 270 miles on it. My output shaft seal is also leaking oil. Did you find that the seal was damaged based on it being defective from the seal manufacturer, or was it damaged due to improper installation by someone on the Ducati assembly line, or was the seal damaged by imperfections in the output shaft itself such as scratches, marring, pitting etc?

I'm sending a letter to Ducati, because this absolutely unacceptable quality control. I smell a potential recall....

My bike is at the dealer being repaired under the warranty, but never-the-less I don't want the same issue to re-occur only days or weeks later.... Thus the need to understand the true root cause.

Picture of the leak
https://drive.google.com/open?id=1pS...Nj5Qfxmw9vLmHT
Had totally the same issue. On my bike the Akrapovic exhaust system is installed. It took about 2 hours to remove the burned oil carefully from the mufflers....
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Old May 16th 2019, 03:19 AM   #7
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Wow this is not good!
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Old May 16th 2019, 10:50 AM   #8
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Originally Posted by Hunter92 View Post
I bleeded the rear brakes by myself and after 3 weeks it went soft again...

shit construction... the caliper should be on higher position than the master cylinder...


Not sure why you say the caliper should be higher than the master cylinder. It is a sealed system and I canít think of many applications where the master cylinder is lower than the caliper



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Old May 17th 2019, 12:21 AM   #9
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Originally Posted by Motzarelli View Post
Not sure why you say the caliper should be higher than the master cylinder. It is a sealed system and I canít think of many applications where the master cylinder is lower than the caliper



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In my opinion the caliber should be higher, because the air can stuck in the system, like it always happens. I bleeded myself and after 2 weeks it went soft again... the dealer dismounted the caliper, bleeded the system and for now it looks OK.
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Old May 17th 2019, 01:07 AM   #10
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Originally Posted by Hunter92 View Post
In my opinion the caliber should be higher, because the air can stuck in the system, like it always happens. I bleeded myself and after 2 weeks it went soft again... the dealer dismounted the caliper, bleeded the system and for now it looks OK.
In almost every case, the rear caliper is the only one that is removed for bleeding, and that is simply to invert it so as the bleed nipple is at the top of the caliper, which aids removing any air and as described in every workshop manual. There is no need whatsoever to have the caliper under normal circumstances, higher than the master cylinder and this is true of all three calipers. Whoever told you this does not understand the principles of hydraulics.
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