• Welcome to Ranger6G.com everyone!

    If you're joining us from Ranger5G, then you may already have an account here! As long as you were registered on Ranger5G as of March 27, 2020 or earlier, then you can simply login here with the same username and password.

Oil Catch Can. Yes or No?

HenryMac

Well-Known Member
First Name
John
Joined
Sep 14, 2019
Messages
858
Reaction score
229
Location
Central Colorado
Vehicle(s)
2019 Ranger SuperCab XL - STX - FX4 - Magnetic
Vehicle Showcase
1
Those are exceptions. Very rare. Again, breathers are band aids for bad rings.
Breathers are not band aids for bad rings. Every internal combustion engine with rings has blow by, nothing rare about that at all. Breathers are merely another way of dealing with positive crankcase pressures and in our case, to keep all that gunk out of the intake.

Venting the crankcase to the atmosphere, via a breather, means fumes in the engine bay. Sure, old school racer folks do it and it works, but there is no getting around the vapors, they are there.

The only question here is how much under the hood vapor is acceptable to the user.

The breathers with the filter caps are better than the dump tubes used in the 1950's and 1960's. Those just dumped the oil onto the highway... but the end result is the same..... and that's why PVC systems were invented.. to deal with those fumes.
 

RCMUSTANG

Well-Known Member
First Name
Ray
Joined
Jan 22, 2019
Messages
1,094
Reaction score
249
Location
Los Angeles
Vehicle(s)
2017 Fusion 1995 Ranger
Breathers are not band aids for bad rings. Every internal combustion engine with rings has blow by, nothing rare about that at all. Breathers are merely another way of dealing with positive crankcase pressures and in our case, to keep all that gunk out of the intake.

Venting the crankcase to the atmosphere, via a breather, means fumes in the engine bay. Sure, old school racer folks do it and it works, but there is no getting around the vapors, they are there.

The only question here is how much under the hood vapor is acceptable to the user.

The breathers with the filter caps are better than the dump tubes used in the 1950's and 1960's. Those just dumped the oil onto the highway... but the end result is the same..... and that's why PVC systems were invented.. to deal with those fumes.
A proper working pcv system and the breather side of the system helps create a vacuum in the crankcase which helps with ring seal. That's why we run vacuum pumps on race cars. Most modern engines should not be experiencing that much blowby to warrant a open breather cap. Technology has come a long way since the 50's and 60's.
 
  • Like
Reactions: Doc

HenryMac

Well-Known Member
First Name
John
Joined
Sep 14, 2019
Messages
858
Reaction score
229
Location
Central Colorado
Vehicle(s)
2019 Ranger SuperCab XL - STX - FX4 - Magnetic
Vehicle Showcase
1
A proper working pcv system and the breather side of the system helps create a vacuum in the crankcase which helps with ring seal. That's why we run vacuum pumps on race cars. Most modern engines should not be experiencing that much blowby to warrant a open breather cap. Technology has come a long way since the 50's and 60's.
Can we focus on the topic of this thread? We aren't talking about race cars with vacuum pumps that help the rings seal... what we are talking about is production vehicles. all of which have blow by, and people who retrofit a system by putting breathers on them.

Your statement of "Breathers are band aids for bad rings" is just flat out wrong in the application at hand.
 

RCMUSTANG

Well-Known Member
First Name
Ray
Joined
Jan 22, 2019
Messages
1,094
Reaction score
249
Location
Los Angeles
Vehicle(s)
2017 Fusion 1995 Ranger
Can we focus on the topic of this thread? We aren't talking about race cars with vacuum pumps that help the rings seal... what we are talking about is production vehicles. all of which have blow by, and people who retrofit a system by putting breathers on them.

Your statement of "Breathers are band aids for bad rings" is just flat out wrong in the application at hand.
I guess your missed the part where i said a properly functioning closed system helps with ring seal. And modern engines just simply don't have the amount of blowby engines did 60 years ago. And that doesn't mean I'm saying there is no blowby. hen start another thread for open breather caps since this is about oil catch cans I guess.
 
Last edited:

Jacob

Member
First Name
Jacob
Joined
Feb 25, 2020
Messages
9
Reaction score
5
Location
USA
Vehicle(s)
2019 Ranger XLT Sport 4x4
Hey y’all, went with the Mishimoto catch can after researching catch cans for awhile. Needless to say I’m sold on them. Here’s what I caught after only 1000 miles of the can on my Sport XLT ranger.

16E06BE8-0717-4B8B-9B22-BAC92E59CC70.jpeg


340BA5FC-4148-42A5-B1DF-7DE04B099947.jpeg
Giving another update after 1500 more miles with the catch can. Noticed more carbon on the bottom of the can, especially when I transferred it to the glass jug. Just more food for thought for those on the fence about buying one.

B5671D57-BC05-47F2-8613-AEAF18050456.jpeg
 
  • Like
Reactions: Doc

Michel Jeanneau

Active Member
First Name
Michel
Joined
Feb 23, 2020
Messages
40
Reaction score
23
Location
Dover, NH
Vehicle(s)
2019 Ford Ranger STX FX4 the black beast; 1988 BMW 528e with euro M kit
The next thing to do here would be a carbon deposit experiment, putting the residue from the catch can and (in a well ventilated area) heat it up to about 210ºF until the liquid evaporates and see what is left after that. That will give you an idea of what will be coating your intake valves....
 

HenryMac

Well-Known Member
First Name
John
Joined
Sep 14, 2019
Messages
858
Reaction score
229
Location
Central Colorado
Vehicle(s)
2019 Ranger SuperCab XL - STX - FX4 - Magnetic
Vehicle Showcase
1
The next thing to do here would be a carbon deposit experiment, putting the residue from the catch can and (in a well ventilated area) heat it up to about 210ºF until the liquid evaporates and see what is left after that. That will give you an idea of what will be coating your intake valves....
Like a volatility test? Ford's Synthetic Blend isn't stellar....


Test Data.jpg
 
Last edited:

Michel Jeanneau

Active Member
First Name
Michel
Joined
Feb 23, 2020
Messages
40
Reaction score
23
Location
Dover, NH
Vehicle(s)
2019 Ford Ranger STX FX4 the black beast; 1988 BMW 528e with euro M kit
not exactly, I was talking about a residue analysis of the substances collected in the catch can to get an idea of carbon build up; I realize not all will end up on the valves because it is intended to be burnt along with the fuel mixture
 

Tim H.

Member
First Name
Tim (TJ)
Joined
Feb 17, 2020
Messages
22
Reaction score
12
Location
Clarksville, MD
Vehicle(s)
2010 RAV4 , 2020 Ranger Lariat
Occupation
Retired IT tech
All this talk about a catch can, won’t a can of fuel system treatment added a few times a year prevent excessive carbon build up on the valves etc?
 

RCMUSTANG

Well-Known Member
First Name
Ray
Joined
Jan 22, 2019
Messages
1,094
Reaction score
249
Location
Los Angeles
Vehicle(s)
2017 Fusion 1995 Ranger
All this talk about a catch can, won’t a can of fuel system treatment added a few times a year prevent excessive carbon build up on the valves etc?
The injectors are in the combustion chamber.
 

HarryD

Well-Known Member
Joined
Sep 3, 2019
Messages
55
Reaction score
8
Location
Western MA
Vehicle(s)
Upcoming 2020 Ranger Lariat
I just got an update regarding the Ford Performance Air/Oil Separator for the Ranger that has been in development for quite a while. The design has been completed and they have a quote out to their supplier.
However, due to the COVID-19 issue causing delays, it might take a few months to produce.
This is supposed to be a dual system (PCV/CCV), like the system for the ecoboost Mustang.
 

Tim H.

Member
First Name
Tim (TJ)
Joined
Feb 17, 2020
Messages
22
Reaction score
12
Location
Clarksville, MD
Vehicle(s)
2010 RAV4 , 2020 Ranger Lariat
Occupation
Retired IT tech
Good video on the Ford Performance Mustang version catch can.

 

beetlespin

Well-Known Member
Joined
Mar 18, 2019
Messages
98
Reaction score
21
Location
NJ
Vehicle(s)
2019 Ford Ranger Lariat Supercrew FX4
When they start putting a 5.0L in the Ranger I'll get one.
 
Top