Charcoal Canister Removal Write Up

All of the information you need in one place.

Postby 1BADGT4 » Sun Aug 20, 2006 9:58 pm

toayoztan wrote:I believe vsv means vacuum switching valve.

(at red arrow)
Image

Bryan


Just wanna point out that there is a missing nipple. Theres suppose to be two nipples.
Members don't see the above ad. Register now - it's free!
[img]http://iamhenrychan.com/images/1655.jpg[/img]
UT2 (SCW) Chan - Oakland, CA
04 Duc Monster DS
90 All-Trac/ GT4RC :: hydra 2.17 :: 880 :: sb46 :: 205ic
400BHP @ 20#, low 12s
[url]http://www.cardomain.com/id/1BADGT4[/url]
User avatar
1BADGT4
Club Member
 
Posts: 482
Joined: Thu Aug 12, 2004 2:33 am
Location: 510

Postby Gary » Mon Aug 21, 2006 12:56 am

Just want to clarify that it is a TVV (Thermal Vacuum Valve), not VSV.
(It opens and closes base on temperature, not vacuum)

and I think I should add these pics to this write up.

Gary wrote:Update.
I adopt David's (Goldfish) method.
Here are some illustrations.
Warning: read the disclaimer below

1) Study and understand the system first!
Image

2) Remove the charcoal canister, unplug all the hoses from the canister.
Make sure you know where it comes from and where it goes to.
Plug the hose going to TVV using a small screw.
I use a nylon fitting to connect the hose from the gas tank
to the hose that connect to the check valve
Image

3) There is a check valve that is plugged to the fender wall.
This is the one that connect to the bottom of the canister to let fresh air from fender well IN
Image

4) Switch the direction of the check valve.
We will need to let the air OUT in order to release the pressure from the tank.
Image

5) Plug the check valve back to the fender wall.
Connect the hose from the gas tank to the hose that lead to check valve.
In the future, I might add a small inline plastic fuel filter (from lawn mower?)
Right now, I just can't find a correct size (so I don't have to use a reducer)
Image
Image

Disclaimer: Removing charcoal canister and/or modification of EVAP system are dangerous and may be illegal depending on where you live and use of the car. Do at your own risk. If your car caught on fire, you get caught, fined, or you and/or your passengers die or injure, etc.. do not blame me. I will not be held responsible for anything resulting from following above modification.
Do at your own risk!
93 ST185
Image
Gary
GTFour God
 
Posts: 6430
Joined: Sun Aug 08, 2004 1:03 pm
Location: Carolina

Postby Sifu » Mon Aug 21, 2006 3:50 pm

Gary, you're such a show off... :smokes:
1990 Celica ST185 "The Money Pit"
Image
BROKEN! BUT NOT BEATEN!
2005 Scion tC FW21
1985 AW11
1987 AW11
User avatar
Sifu
GTFour God
 
Posts: 3041
Joined: Thu Aug 19, 2004 6:08 pm
Location: Savage Bowels of MN

Postby toayoztan » Tue Aug 22, 2006 2:01 am

Cool, thanks for adding the information about the check valve Gary. Something I overlooked! With all of this, the write up should be pretty much complete.

Oh, and for those considering the catch can to be mounted where the charcoal canister was...I'm not sure if this is true or not, but I was told (by instructions too) to have the catch can mounted as high as possible in the engine bay. I'll see if I can look into this more. So, mounting it down there where the canister was may not be ideal. However, mounting it higher for those who don't have cruise control, this would be perfect.

Bryan
2017 Pilot Elite
2014 Juke NISMO RS
1994 Supra TT 6spd
1993 Alltrac - http://www.alltrac.net/phpBB2/viewtopic.php?f=44&t=37466
1977 Celica GT Liftback
2015 Grom
1977 GL1000
User avatar
toayoztan
GTFour God
 
Posts: 6734
Images: 1
Joined: Wed Aug 11, 2004 5:51 am
Location: Oklahoma

1993 Toyota Celica

Postby theUNYTEDone » Wed Aug 23, 2006 9:33 am

toayoztan wrote:Oh, and for those considering the catch can to be mounted where the charcoal canister was...I'm not sure if this is true or not, but I was told (by instructions too) to have the catch can mounted as high as possible in the engine bay. I'll see if I can look into this more. So, mounting it down there where the canister was may not be ideal. However, mounting it higher for those who don't have cruise control, this would be perfect.

Bryan


why's this true? doesn't oil as well as any other liquid drip DOWNwards?
Nigel in Hawaii
From Hell and Back
User avatar
theUNYTEDone
GTFour God
 
Posts: 5085
Joined: Sun Jan 22, 2006 10:56 pm
Location: Kamo'ili'ili Town

Postby toayoztan » Wed Aug 23, 2006 4:51 pm

I think IIRC it dealt with the idea of pulling/sucking oil out of the system. So, if the outlet from the motor to the catch can is higher, then you are right, oil would tend to go downward, towards the catch can.

I'm not sure if this is true. I just know I try to keep the catch can higher or at the same level of wherever the line is connected to the motor.

Bryan
2017 Pilot Elite
2014 Juke NISMO RS
1994 Supra TT 6spd
1993 Alltrac - http://www.alltrac.net/phpBB2/viewtopic.php?f=44&t=37466
1977 Celica GT Liftback
2015 Grom
1977 GL1000
User avatar
toayoztan
GTFour God
 
Posts: 6734
Images: 1
Joined: Wed Aug 11, 2004 5:51 am
Location: Oklahoma

1993 Toyota Celica

Postby tw2 » Wed Aug 23, 2006 8:44 pm

I have had my catch can in this position for many months now. I cannot say that I have had any problems with it. It has almost no oil in it but I have only driven my car ~1200km this year and the engine is pretty healthy (apart from valves). I also worked on the theory that gravity cannot hurt it. I thought it made sense that gravity helps pull oil droplets and vapour down toward the catch can and then helps keep it there while the vacuum from the intake pulls the air back out again. The vacuum will still be pulling no matter what direction it is pulling towards.

I certainly have had no oil whatsoever in the hoses coming from the can and no oil in the intake before the turbo anywhere.
Thomas, JDM 90 185, 06 350z
User avatar
tw2
Established Member
 
Posts: 2909
Joined: Sun Dec 11, 2005 3:01 am
Location: Hamilton, New Zealand

Postby CMS-GT4 » Sat Sep 16, 2006 7:03 pm

The fuel filter fits pretty well in there.

Image
Coldiron
92 st185 (205 swap) | 03 350Z Track (sold) | 13 Pilot | 17 Mazda3
www.noritoy.com | noritoy.deviantart.com | http://www.alltrac.net/phpBB2/viewtopic.php?f=44&t=19891
User avatar
CMS-GT4
GTSilver Member
 
Posts: 10345
Images: 7
Joined: Mon Aug 09, 2004 9:12 pm
Location: St Louis Area (IL)

1992 Toyota Celica

Postby smog7 » Thu Feb 01, 2007 5:15 pm

sticky anyone?
-omar
my car doesn't leak oil, it just marks its territory
rally tarmac 1990 st185
User avatar
smog7
GTFour God
 
Posts: 3025
Joined: Wed Sep 27, 2006 8:34 pm
Location: central coast, ca

Postby Aaron » Sun Feb 18, 2007 1:24 am

Sorry, but what's the point of filtering air that you're just letting vent to atmosphere?
__________
Aaron
1992 ST185
1989 AE95 Wagon

Image
User avatar
Aaron
Club Member
 
Posts: 552
Joined: Fri Aug 27, 2004 7:27 pm
Location: CT

Postby Gary » Sun Feb 18, 2007 1:40 am

In case that the check valve failed, you will not have dust entering the fuel tank.
93 ST185
Image
Gary
GTFour God
 
Posts: 6430
Joined: Sun Aug 08, 2004 1:03 pm
Location: Carolina

Postby 88alltracohio » Mon Feb 19, 2007 3:43 pm

its the same for 165's right?
88 ST165: SOLD :(
320hp sr swapped 90 240sx: SOLD
93 Del Sol: Daily driver
93 300zx: FOR SALE
I miss my AllTrac :'(
User avatar
88alltracohio
Club Member
 
Posts: 214
Joined: Fri Oct 06, 2006 8:24 pm
Location: the 614, ohio

Postby 88alltracohio » Mon Mar 12, 2007 10:33 pm

where did you get that filter from?

check this out...

http://alltrac.net/phpBB2/viewtopic.php?t=19916
:shrug:
88 ST165: SOLD :(
320hp sr swapped 90 240sx: SOLD
93 Del Sol: Daily driver
93 300zx: FOR SALE
I miss my AllTrac :'(
User avatar
88alltracohio
Club Member
 
Posts: 214
Joined: Fri Oct 06, 2006 8:24 pm
Location: the 614, ohio

Postby Corey » Tue Mar 25, 2008 5:20 pm

What would happen if a line is run directly from the tank vent line, to the vacumme tube on the top of the throttle body?

My car is having a cold start issue since the rebuild. I removed the Charcol canister while i rebuilt the motor.


I plugged the vacumme tube on the TB with some 4mm vacumme hose and a bolt.

Well, today i tried unplugging that tube just to see what would happen while it idled... there was zero change. the car reved fine as normal too.

So, im just curious what would happen if the tank vent bypassed the charcol canister, and went straight to the TB?

Thanks

Corey
Image
User avatar
Corey
GTFour God
 
Posts: 4123
Images: 50
Joined: Sun Feb 11, 2007 12:12 am

1989 Toyota Celica

Postby WarTowels » Thu Mar 27, 2008 9:38 pm

I also have a question.

I accidentally pulled the line off of the TVV, but it is still on the charcoal canister.

Does anyone have a picture illustrating where this is meant to plug into? Also I'm unclear as to what is done with this line after the canister is removed?

-Towels
2003 S2000
1985 300TD
User avatar
WarTowels
Gold GTfour God
 
Posts: 6443
Joined: Tue Aug 17, 2004 4:30 am
Location: I live in a garage.

PreviousNext

Return to FAQ / Archive

Who is online

Users browsing this forum: Yahoo [Bot] and 2 guests