Welcome to DSMtuners - the largest Mitsubishi Eclipse, Eagle Talon, 4G63t and 420A DSM performance resource on the web



















Login



Go Back   DSMtuners > DSM Forums > General > Newbie Forum
Welcome to DSMtuners - the largest Mitsubishi Eclipse, Eagle Talon, 4G63t and 420A DSM performance resource
You are browsing the site as a GUEST. Please login (or register) and gain the ability to post on our site and interact with other DSMers. You also get to browse the site with fewer advertisements. It is FREE to join!

Newbie Forum: Beginner/newbie/general DSM modification questions. First mods, how to run 10's when you haven't run 12's yet, any tech question that doesn't fit in another tech forum. Probationary Members must limit their tech posts to this forum and sub-forums.

Reply
 
 
LinkBack   Thread Tools
Old 01-09-2012, 06:46 AM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #1 (permalink)
Proven Member
 

1Gina2G's Avatar
Registered: May 2011
Tech Posts: 815
Classifieds Rating: 0
Reputation: 1Gina2G is an unknown

fuel tank vent / breather question


The charcoal / emissions canister has been deleted from my car, but the hardline that used to go to it, which is the fuel tank vent, still has this small plastic piece hose clamped to the tip of the hardline, I don't think it's a breather, but I'm not sure what it is, it looks like what used to be there for the canister, right next to the hardline for the fuel filter.

Should I take it off to vent better? Still not sure what a breather is or if I can buy one at a car parts store?

I'll post a pic on here later today to show the weird plastic piece I'm talking about.


mark post as helpful recommend reputation points    Reply With Quote
Old 01-09-2012, 07:07 AM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #2 (permalink)
Proven Member
 

Swarley815's Avatar
Registered: Oct 2011
Tech Posts: 30
Classifieds Rating: 1
Reputation: Swarley815 is an unknown
A "breather" is a small filter that you can get at just about any parts store. From what i have read you should def vent your fuel tank just not in the engine bay for safety reasons. Also there is no real gain to getting rid of the charcoal canister so it might be easier to just replace it with one from a donor car.

mark post as helpful recommend reputation points    Reply With Quote
Old 01-09-2012, 07:30 AM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #3 (permalink)
Moderator
 

9!'clipseDOHC's Avatar
Registered: Aug 2003
Tech Posts: 3,447
Photos: 41
Classifieds Rating: 5
Reputation: You can trust this leader of the site
If the 2g setup is the same as the 1g, then that hard plastic piece is a check valve for the vent/emissions system. No one has come up with a perfect system for the fuel tank vent line with a removed charcoal canister/vacuum source. Most people, myself included, just route that line out of the engine bay and leave it at that.


____________________________
Nathan
DirtyEvo.com
N/T: 16.1 @ 82, 14b: 13.1 @ 110
Visit 9!'clipseDOHC's homepage!  View photos of this member's car 

mark post as helpful recommend reputation points    Reply With Quote
Old 01-09-2012, 08:52 AM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #4 (permalink)
Proven Member
 

1Gina2G's Avatar
Registered: May 2011
Tech Posts: 815
Classifieds Rating: 0
Reputation: 1Gina2G is an unknown
Quote:
Originally Posted by 9!'clipseDOHC View Post
If the 2g setup is the same as the 1g, then that hard plastic piece is a check valve for the vent/emissions system. No one has come up with a perfect system for the fuel tank vent line with a removed charcoal canister/vacuum source. Most people, myself included, just route that line out of the engine bay and leave it at that.
This is also something I was wondering about, so some people just bend the hardline back, under the car? Just to get it out of the engine bay? Doesn't seem like it would really get in the way of anything, just seems the canister just gets in the way so I'd rather just leave it out.

Does anybody know if I need a different intake pipe if you don't have a canister?? Since a tube leads from the canister to the turbo's intake pipe??

mark post as helpful recommend reputation points    Reply With Quote
Old 01-09-2012, 09:04 AM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #5 (permalink)
Proven Member
 

ed1380's Avatar
Registered: Sep 2007
Tech Posts: 2,301
Photos: 2
Classifieds Rating: 29
Reputation: ed1380 is extremely helpful and trustworthyed1380 is extremely helpful and trustworthy
Just plug intake pipe when the charcoal canister connected.
View photos of this member's car 

mark post as helpful recommend reputation points    Reply With Quote
Old 01-09-2012, 09:18 AM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #6 (permalink)
Moderator
 

9!'clipseDOHC's Avatar
Registered: Aug 2003
Tech Posts: 3,447
Photos: 41
Classifieds Rating: 5
Reputation: You can trust this leader of the site
Quote:
Originally Posted by 1Gina2G View Post
This is also something I was wondering about, so some people just bend the hardline back, under the car? Just to get it out of the engine bay? Doesn't seem like it would really get in the way of anything, just seems the canister just gets in the way so I'd rather just leave it out.

Does anybody know if I need a different intake pipe if you don't have a canister?? Since a tube leads from the canister to the turbo's intake pipe??
On mine I just added another vacuum line to route the vent line out by the passenger wheel. It's just to keep any fumes from the tank from filling up the engine bay or making their way into the cab. As stated just cap that line on your intake pipe.


____________________________
Nathan
DirtyEvo.com
N/T: 16.1 @ 82, 14b: 13.1 @ 110
Visit 9!'clipseDOHC's homepage!  View photos of this member's car 

mark post as helpful recommend reputation points    Reply With Quote
Old 01-09-2012, 10:22 AM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #7 (permalink)
Proven Member
 

1Gina2G's Avatar
Registered: May 2011
Tech Posts: 815
Classifieds Rating: 0
Reputation: 1Gina2G is an unknown
Quote:
Originally Posted by ed1380 View Post
Just plug intake pipe when the charcoal canister connected.
I think you meant to say, with the canistaer disconnected correct?

Should rubber hose caps be fine for the intake pipe?

mark post as helpful recommend reputation points    Reply With Quote
Old 07-18-2013, 10:39 AM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #8 (permalink)
Proven Member
 

952g63t's Avatar
Registered: Mar 2012
Tech Posts: 110
Photos: 6
Classifieds Rating: 5
Reputation: 952g63t is an unknown
Sorry to dredge up an old thread, but I've also been debating on what to do with my breather line.

Can you route the breather hose (after the check valve) to your intake or intake manifold?
View photos of this member's car 

mark post as helpful recommend reputation points    Reply With Quote
Old 07-18-2013, 11:07 AM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #9 (permalink)
Supporting Freelancer
 

black_gst's Avatar
Registered: Jun 2008
Tech Posts: 1,585
Photos: 12
Classified Ads: 1
Classifieds Rating: 37
Reputation: black_gst is pretty helpful and trustworthy
im not sure what everyone does now, but i just have a random PVC check valve that allows air in but not out of that vent line and i never smell fuel


____________________________
-Adam.
2G poly roll stops, solid sub-frame and diff bushings, Holset turbos and custom turbine housings
<-Click "Freelancer"
Visit black_gst's homepage!  View photos of this member's car 

mark post as helpful recommend reputation points    Reply With Quote
Old 07-18-2013, 01:48 PM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #10 (permalink)
Proven Member
 

Spoolin98's Avatar
Registered: Feb 2004
Tech Posts: 1,432
Photos: 6
Classified Ads: 2
Classifieds Rating: 37
Reputation: Spoolin98 is pretty helpful and trustworthy
Send a message via AIM to Spoolin98
Quote:
Originally Posted by black_gst View Post
im not sure what everyone does now, but i just have a random PVC check valve that allows air in but not out of that vent line and i never smell fuel
Isnt the purpose of the vent line to allow air out?


____________________________
Mike
View photos of this member's car 

mark post as helpful recommend reputation points    Reply With Quote
Old 07-18-2013, 01:54 PM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #11 (permalink)
Proven Member
 

gophishy10's Avatar
Registered: Apr 2012
Tech Posts: 197
Photos: 33
Classifieds Rating: 5
Reputation: gophishy10 is an unknown
Quote:
Originally Posted by Spoolin98 View Post
Isnt the purpose of the vent line to allow air out?
That's what I thought too. I think he has his check valve backwards.


____________________________
-Jordan
'96 GST - 57k -put on hold for now.
View photos of this member's car 

mark post as helpful recommend reputation points    Reply With Quote
Old 07-18-2013, 02:20 PM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #12 (permalink)
Proven Member
 

Joethefallen23's Avatar
Registered: Dec 2011
Tech Posts: 386
Photos: 2
Classified Ads: 1
Classifieds Rating: 5
Reputation: Joethefallen23 is an unknown
The purpose is to prevent excess pressure in the tank from the buildup of vapors. Have a check valve only allow air in is simply no better than just plugging the hard line. I routed mine into my passenger side wheel well. Zip tied it to my trans cooler with a little fuel filter on the end to keep dust out.
View photos of this member's car 

mark post as helpful recommend reputation points    Reply With Quote
Old 07-18-2013, 03:48 PM Show Printable Version Show Printable Version   Email this Post to a Friend Email this Post      #13 (permalink)
Proven Member
 

arbiter's Avatar
Registered: Jul 2008
Tech Posts: 125
Classifieds Rating: 1
Reputation: arbiter is an unknown
In europe car (Apart from VW/AUDI/SEAT) it is usual to find a Pitsburg valve connected to wot pedal, to let the intake suck the vapour from the tank.

It is very common to find this on Opel cars, wich is a brand of the GM group.

mark post as helpful recommend reputation points    Reply With Quote
Reply

Bookmarks

Thread Tools

 

» Recent DSM Photo
» Current Poll
How many times have you been to the Shootout?
1 - 39.86%
167 Votes
2-5 - 41.77%
175 Votes
6-10 - 10.50%
44 Votes
11-15 - 3.10%
13 Votes
16-20 - 4.77%
20 Votes
Total Votes: 419
You may not vote on this poll.
» Online Users: 766
223 members and 543 guests
Most users ever online was 1,704, 03-17-2008 at 09:11 PM.
DSMtuners Main Sections
DSM Forums
DSM Regional Forums
DSM Builds/Journals
DSM Articles
DSM Tech Guides
DSM Upgrade Paths
DSM Parts Reviews
DSM Vendor Reviews

DSM Classifieds
DSM Parts Guides
DSM Photos
DSM Videos
DSM Timeslips
DSM Dyno Sheets
Shirts & Apparel
DSMtuners Decals

Advertising Info
Our Sponsors
Site Rules
Terms of Service
Privacy Policy
Site FAQ
About Us
Contact Us

© 2014 DSMtuners.com - All Rights Reserved

DSMtuners is not affiliated with Diamond Star Motors. The Mitsubishi Eclipse, Eagle Talon, Plymouth Laser, Mitsubishi Galant VR-4, and associated logos are trademarks of Diamond Star Motors, Mitsubishi Motors, and Chrysler Corporation. No, we do not hand out car sponsorships.

All times are GMT -7. The time now is 09:32 PM.


Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.

Search Engine Optimization by vBSEO 3.6.0