Ducati Monster Forum

powered by:

February 06, 2025, 10:29:50 AM *
Welcome, Guest. Please login or register.

Login with username, password and session length
News: Welcome to the DMF
 
   Home   Help Search Login Register  



Pages: [1]   Go Down
  Print  
Author Topic: Crankcase Breather for 696  (Read 1421 times)
chisel
Jr. Member
**
Offline Offline

Posts: 68



« on: June 02, 2010, 07:49:58 AM »

Hi everyone,
Did a search, came up with a few tid-bits about breathers for the 696. Noticed a stunter team that actually runs a line from the oil fill to the air box.
I also saw on TPO's website a product that might be a breather set up for a 696.

http://www.tpoparts.com/catalog/product_info.php?products_id=31&osCsid=cb9rfongeejqdrgn8elqa8vfl1

I removed the emissions canister from the bike, but left the drain hose for the air box. I didn't want any condensation to well up in the box. However, part of that condensation is oil vapor condensation. So, where the stock hose ends, I get an oily discharge all over the crankcase.

I don't like this and want to remedy it.

Possible solutions:
Longer vent to vent below the bike.
Reworking the crankcase breather set up.

Problems:
Longer vent means the oily residue vents to the street. I'm wary of venting oil in front of my rear tire.
Because of the crankcase vent location, I'm worried that placing a filter at that level will mean oil coming through the filter on acceleration. I don't stunt, but I'm not sure how much weight transfer could be handled until oil traveled into the filter element. A new hose could be run from that level up to a safe mounting location for the filter element, maybe even near where it connects to the airbox now.

Thoughts, information, opinions much desired.

Thanks!
Logged
pennyrobber
Hero Member
*****
Offline Offline

Posts: 1826



« Reply #1 on: June 02, 2010, 08:24:16 AM »

The passage within the case that leads up to breather is fairly convoluted so I doubt that hard acceleration would be able to shoot oil out of the breather unless it was really overfilled. Even wheelies aren't bad as long as you aren't riding them for a long time. You can imagine doing slow speed 12 o'clock circle wheelies give the oil plenty of time to pool at the back of the engine and flow strait out of the breather.

I have a wide open STM breather with no reed valve, under seat catch box removed and a hose running to a mini breather filter located in the airbox. I get some oil mist inside the tube but none in the box itself.

I would say for your bike a mini filter on a short hose above the breather should sort you out.
« Last Edit: June 02, 2010, 08:43:34 AM by pennyrobber » Logged

Men face reality and women don't. That's why men need to drink. -George Christopher
chisel
Jr. Member
**
Offline Offline

Posts: 68



« Reply #2 on: June 02, 2010, 08:36:08 AM »

Awesome info, Pennyrobber. Much appreciated!
Logged
chisel
Jr. Member
**
Offline Offline

Posts: 68



« Reply #3 on: June 02, 2010, 05:18:16 PM »

So, sorry to bring this back up to the top...

However, I'm unable to find a bike-specific breather for the 696. In fact, some places say "Except 696" for their parts.
Pennyrobber, do you run a 696? Anyone else with a 696 have a breather installed if Pennyrobber isn't running a 696?

Thanks.
Logged
Raux
Guest
« Reply #4 on: June 02, 2010, 07:42:02 PM »

was wondering about that. the 696 has a wierd one that is screwed down. and it looks like the cooling find cover it a lot making it hard to fit a screw on type.
you could just pull the tube, fit a different tube and then run the filter on the end of the tube.
Logged
chisel
Jr. Member
**
Offline Offline

Posts: 68



« Reply #5 on: June 03, 2010, 07:11:13 AM »

From what I recall, the tube is pretty huge, no?
Logged
Pages: [1]   Go Up
  Print  
 
Jump to:  


Powered by MySQL Powered by PHP Powered by SMF 1.1.21 | SMF © 2015, Simple Machines
Simple Audio Video Embedder
Valid XHTML 1.0! Valid CSS!
SimplePortal 2.1.1