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Old 04-06-2019, 04:10 AM   #1
EvanS
 
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Default Oil Catch Can

I did a bit of searching for this but there doesn't seem to be a huge number of posts for oil catch cans. Hein, did have three photos posted for this (of course he did) but I figured I would add what I could after doing the install myself.

Ok, so why a catch can?

Well, simple - I didn't want the EGR gasses containing oil to recirculate into the engine intake. If too much oil enters the intake it is known to coat the walls of the engine with oil which allows carbon build up. Having owned a BMW with the N54 engine I know this is a serious issue that should be avoided. However, there doesn't seem to be a dedicated oil catch can system you can buy for the OM642. I was told to buy this catch can which seems to be a top of the line catch can and has hoses that will work with the Sprinter system.

After taking the EGR hose apart and removing the air intake to the turbo, I found oil in the system :-( I was especially bummed to see this given that my van has 4,100 miles on it...

Anyway, here is a link that should show what I did and how I did it.

Photo 1 - Oil in the turbo intake.
Photo 2 - Oil on the sensor that is right before where the EGR hose connects to the air intake.
Photo 3 - Oil on said sensor
Photo 4 - Oil on hose that connected to sensor
Photo 5 - Location of catch can. This is below the air filter on the passenger side of the van. There are a few predrilled holes in the area that I widened to accomidate a 5/16th bolt. I would use something a bit smaller to prevent having to ream the holes to make them fit this bolt size. Use the red oil dipstick to orient the placement of the catch can. I did cut the bottom 1/4 off of the mounting bracket and drilled two holes in it to mount it in this location.
Photo 6 - Hose leading from catch can to air intake.
Photo 7 - Hose leading from EGR to catch can.
Photo 8 - Shows how hose goes from EGR to bottom of catch can then from top of catch can to air intake.
Photo 9 - Hose from catch can to air intake.

Couple of notes -

All hoses are 3/4
I cut into the EGR hose close to the firewall and then discarded the rest of the hose.
A 3/4 - 3/4 hose connector was uses to connect the EGR output to the hose that runs to the bottom of the catch can.

Last edited by EvanS; 04-06-2019 at 03:32 PM.
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Old 04-14-2019, 08:25 PM   #2
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Default Re: Oil Catch Can

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Old 04-28-2019, 11:02 AM   #3
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Default Re: Oil Catch Can

I bought a catch can for my '16 4-cylinder and hope to get it installed this week. These catch cans don't seem to be embraced by many here, for some reason. I don't post much (yet) but have been reading a lot.
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Old 04-29-2019, 02:58 PM   #4
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Default Re: Oil Catch Can

Quote:
Originally Posted by John E View Post
I bought a catch can for my '16 4-cylinder and hope to get it installed this week. These catch cans don't seem to be embraced by many here, for some reason. I don't post much (yet) but have been reading a lot.
I am definitely interested in what you come up with.
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Old 04-29-2019, 03:50 PM   #5
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Default Re: Oil Catch Can

Engineering Explained posted a video last week titled: "Do Oil Catch Cans Actually Work?, Proof That Oil Catch Cans Are Worth It For Direct Injection Engines". But it adds yet another item requiring routine maintenance of emptying the catch can.

https://youtu.be/T-B4VRxAtbw
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Old 04-30-2019, 11:49 PM   #6
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Default Re: Oil Catch Can

Word of caution: Oil catch cans in cold weather might freeze up. That can cause excessive crankcase pressure, blow a seal and end witha serious oil leak.
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Old 04-30-2019, 11:57 PM   #7
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Default Re: Oil Catch Can

Oil catch can is def on my to do list.

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Old 05-01-2019, 03:42 AM   #8
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Default Re: Oil Catch Can

Quote:
Originally Posted by showkey View Post
Word of caution: Oil catch cans in cold weather might freeze up. That can cause excessive crankcase pressure, blow a seal and end witha serious oil leak.
That is why mine is a mason jar. So I can easily see the contents and make sure it's not full of condensation.



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Old 05-01-2019, 12:50 PM   #9
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Default Re: Oil Catch Can

The hoses can also freeze............this is true with all PCV systems that’s why they are heated or routed to avoid those problems.
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Old 05-03-2019, 03:28 PM   #10
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Default Re: Oil Catch Can

I don't mind adding this to my list of routine maintenence. It's easy to take care of and it prevent carbon buildup on the intake, also know as black death. Seems like a small trade off to me.


Not sure how freezing weather would affect the system. There is some oil in the bottom of the can, but unless it were so full that it were to block the air passing through I doubt it could do much harm.
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