Oil Separator Function ?

Status
Not open for further replies.
Joined
Jul 5, 2016
Messages
21
1975 850 Commando
Can someone tell me the function of the oil separator as seen in the first diagram. Mine has no little hose coming off it going to the a T-fitting as in the diagram, which in looking on the intake manifold area, probably got plumbed to each intake from the T.
Mine as you can see just has a hose intake to intake.
Should I plumb as in the diagram or did the previous owner make this modification for a reason?
Also noticed a few drilled holes in the airbox . Another modification with a reason?

Oil Separator Function ?


Oil Separator Function ?


Oil Separator Function ?
 
mrmach5 said:
Can someone tell me the function of the oil separator as seen in the first diagram.

It's an "emissions" device that sends unburnt hydrocarbons back into the engine where they will be burnt instead of pumped into the atmosphere from an 'open' breather.

http://arrc.ebscohost.com/ebsco_static/ ... YSTEMS.htm
(No "PCV" in the standard Commando system)


mrmach5 said:
Mine has no little hose coming off it going to the a T-fitting as in the diagram, which in looking on the intake manifold area, probably got plumbed to each intake from the T.
Mine as you can see just has a hose intake to intake.
Should I plumb as in the diagram or did the previous owner make this modification for a reason?

Unless removal of those separator parts breaks local emissions laws (probably does, but) then best to leave things as they are.


mrmach5 said:
Also noticed a few drilled holes in the airbox . Another modification with a reason?

The holes are as it came from the factory.

Oil Separator Function ?
 
I replaced part #36 with a barbed fitting and ran a hose down the frame. I installed a vent cap on it to prevent garbage from going up the hose. I found it hard to get a good idle with the small hose and "t" fitting. I left the seperator connected to the air box to catch the vapors/fumes. I get no oil in either my air box or dripping out of the hose and no hot oil smell at idle. It works for me. I also installed the short hose to keep the intake balanced.
Pete
 
Status
Not open for further replies.
Back
Top