Ventectomy -- New guy's first mod!

.92 Mach

Well-known member
Joined
Jan 7, 2003
Location
Dallas, TX
TDI
2002 Jetta, White as an Egg
Ventectomy -- New guy\'s first mod!

It took about 45 seconds. No, it's true! Less than a minute in below freezing temps.

The photos posted in a thread on this subject were fantastic, and a tremendous help.

I can't find the thread right now, but whoever posted the pics, I say THANKS!

Greg
 

Drivbiwire

Zehntes Jahr der Veteran
Joined
Oct 13, 1998
Location
Boise, Idaho
TDI
2013 Passat TDI, Newmar Ventana 8.3L ISC 3945, 2016 E250 BT, 2000 Jetta TDI
Re: Ventectomy -- New guy\'s first mod!

Just think in the time it took you to pull that at work you would have travelled 6.428 miles, what took you so long?


Fueling will be much easier from here on out almost like single point refueling! The hassles that tab create remind me of the fuel tanks on King Airs, PITA since they foam up so bad.

DB
 

gern_blanston

Veteran Member
Joined
Dec 3, 2002
Location
PNW
TDI
Golf, '03, Silver
Re: Ventectomy -- New guy\'s first mod!

An easy AND useful mod. I remember many an early morning standing on a ladder in the rain listening to the ol' Turbo Commander go 'glug glug glug'.
 

.92 Mach

Well-known member
Joined
Jan 7, 2003
Location
Dallas, TX
TDI
2002 Jetta, White as an Egg
Re: Ventectomy -- New guy\'s first mod!

You know, my '86 A2 Gasser had the vent tab, I never thought about removing it. I did develop a way to defeat it, with the spring that wraps around the pump nozzle I could press it in and top off.

Gee, 32 MPG sounds so lame now, but it was great for the darn near 10 years and 250k I had that little car. I gave it to my brother because Icould not bear the thought of someone abusing it.

But, I digress.

Thank you, GeWilli, for the pics!

Greg

P.S. The X is still a pain to fuel, as 13,000 lbs can take awhile to pump. Believe it or not, overwing fueling can be done. I'd hate to be the guy hand pumping 1800 gallons!
 

GeWilli

Top Post Dawg
Joined
Aug 6, 1999
Location
lost to new england
TDI
none in the fleet (99.5 Golf RIP, 96 B4V sold)
Re: Ventectomy -- New guy\'s first mod!

no problem guys glad it works - don't do this mod on a gasser - DO NOT. THink BOOOOOM
 

Si2WRX

Member
Joined
Feb 23, 2003
Location
Atlanta, GA
TDI
2001 Jetta TDI
Re: Ventectomy -- New guy\'s first mod!

I'm new to diesel... what's the purpose of this vent? And why remove it?
 

Drivbiwire

Zehntes Jahr der Veteran
Joined
Oct 13, 1998
Location
Boise, Idaho
TDI
2013 Passat TDI, Newmar Ventana 8.3L ISC 3945, 2016 E250 BT, 2000 Jetta TDI
Re: Ventectomy -- New guy\'s first mod!

Originally posted by Si2WRX:
I'm new to diesel... what's the purpose of this vent? And why remove it?
<font size="2" face="Verdana, Helvetica, sans-serif">Diesel foams up when you fuel the car.

The vent is a leftover (crossover) from the gasoline engines that require "Evaporative Emissions Systems". Since a TDI/Diesel does not utilize this system removing the "Vent" allows for the full capacity of the tank to be utilized allowing you to fit an additional 2-3 gallons into the standard tank. The vent also helps to settle the foam alowing for a quicker filling of the tank.

DB
 

snoopis

Veteran Member
Joined
Aug 18, 2002
Location
Arlington, TX, USA
TDI
2002 Golf GLS TDI, 5spd
Re: Ventectomy -- New guy\'s first mod!

I had one better than GeWilli's pictorial... I had GeWilli himself do it!! Thanks again, Geoff.

-Nick
 

GeWilli

Top Post Dawg
Joined
Aug 6, 1999
Location
lost to new england
TDI
none in the fleet (99.5 Golf RIP, 96 B4V sold)
Re: Ventectomy -- New guy\'s first mod!

hey you are welcome Nick! anytime

one thing to check for - golfstream's drain hose was wedged between the fender liner and the bumper trim . . . if the hose doesn't come out easily grab the hose and give it a tug - don't pull on the whole unit . . .
 

Mileage Dude

Veteran Member
Joined
Dec 6, 2002
Location
NY, NY, 10003
Re: Ventectomy -- New guy\'s first mod!

That was my first mod on my MKIV in Octobre after reading this forum of Fred's. [Bad english?
]

Hence, I showed 3 people how to vent pushing in the tab during fill-ups on their TDi's. Of the [3] individuals, [2] told me it was dangerous and would kill the motor. They informed me it was a huge risk. They in turn refused to vent during fill-ups. Both individuals can't do more than 500 miles on a fill-up and never put more than 12 gallon. [this is when their fuel light refill has been activated].

The third individual is an architect, Tdi owner since mid 90's and drives a Golf 2000 TDi. Met him at a Chase bank and discussed our cars. He drives a lot. Needless to say I showed him this trick, gave him this forum and he wrote me back last week. He thanked me for the extra 100 miles on each tank.
Now he want's UpSolute, Van Aaken, Real Street Springs, and .205 injectors. All in that order. I guess I sell a good story.


So, one in three will listen around these parts to these very useful forum suggestions. The other two are clueless, I.T. dudes who read way too much science fiction, ...and perhaps subscribe to Popular Mechanics ordering secret decoder rings on the last black and white pages of that magazine.


The world is changing. Thought too. Technology depending on your toilet reading material.

Royal Flush,

MD
 

OffTheFence

Veteran Member
Joined
Jul 15, 2000
Location
Chicago IL USA
TDI
Jetta, 2000, Canyon Red
Re: Ventectomy -- New guy\'s first mod!

Has anyone experienced inconsistent fillups after ventectomy when letting the pump click off by itself?

Before ventectomy, it was amazing how consistent my fill ups were in terms of volume. Because of my driving route and habit of filling up right after the low fuel chime would sound, I'd sometimes get 2 or 3 consecutive fills that would all click off within a quarter gallon of each other.

Now, sometimes the tank gobbles a lot of fuel and sometimes not. Same pump, same slow setting. I know the true acid test is to fill up carefully until the level of fuel is visible in the filler pipe, but man, it's cold out there to be standing there doing that!


Of course, I have no intention of reinstalling the vent guts, just wondering if anyone else has the same experience. My mileage graph now looks like peaks and valleys and I think it's because sometimes I get a lot of fuel in the tank and sometimes not.

Anthony
 

Toronto_Vento

Top Post Dawg
Joined
Nov 7, 2002
Location
Richmond Hill, ON
TDI
01 Baltic Green Bora
Re: Ventectomy -- New guy\'s first mod!

Does anyone know if there are instructions like this for the MK3 Jetta? Or is it basically the same procedure as the MKIV?
 

GeWilli

Top Post Dawg
Joined
Aug 6, 1999
Location
lost to new england
TDI
none in the fleet (99.5 Golf RIP, 96 B4V sold)
Re: Ventectomy -- New guy\'s first mod!

anthony,

Its still very consistent for me . . . and yeah I still fill to the top - even in the single digit amounts.

I always use the slowest setting on the pump . . . and the time it takes to bring it up to teh top is pretty short . . . not too bad . . .

and my mileage graph is pretty - i'd say Extremely - consistent before and after the ventectomy was performed. . . .

Now that i've slowed down about 5 mph my mileage has jumped (for the good)
doing my part to piss off the speeders and at the same time decrease the use of petroleum oil and increase the use of biodiesel.

the better the mileage I get the more I can afford to use higher % of domestic renewable diesel fuel!
 

Groundhog1248

Veteran Member
Joined
Jun 10, 2002
Location
Lancaster, PA
TDI
Blue 2015 Golf TDI 6 Speed SEL
Re: Ventectomy -- New guy\'s first mod!

Trying to do the ventectomy but can't get the white piece to pop out from the instructions. Am I missing something? I push in on the white tab but nothing happens. I also tried pushing the vent switch or what ever it's called that's attached but still no luck. Thanks
 

Frank M

BANNED
Joined
Apr 7, 2000
Location
NH
TDI
NB
Re: Ventectomy -- New guy\'s first mod!

<font color="red">It depends on the speed you are filling with. A slow flow will net more gallons in the tank before clicks off. Vice versa </font>

Has anyone experienced inconsistent fillups after ventectomy when letting the pump click off by itself?

Before ventectomy, it was amazing how consistent my fill ups were in terms of volume. Because of my driving route and habit of filling up right after the low fuel chime would sound, I'd sometimes get 2 or 3 consecutive fills that would all click off within a quarter gallon of each other.

Now, sometimes the tank gobbles a lot of fuel and sometimes not. Same pump, same slow setting. I know the true acid test is to fill up carefully until the level of fuel is visible in the filler pipe, but man, it's cold out there to be standing there doing that! <img border="0" title="" alt="[Smile]" src="images/icons/smile.gif" />

Of course, I have no intention of reinstalling the vent guts, just wondering if anyone else has the same experience. My mileage graph now looks like peaks and valleys and I think it's because sometimes I get a lot of fuel in the tank and sometimes not.

Anthony
 

Hammy

Well-known member
Joined
Aug 18, 2003
Location
Detroit, MI
TDI
2003 Golf 3-dr Reflex Silver
Re: Ventectomy -- New guy\'s first mod!

Just to double check, if you are filling up and have the pump on by itself, it will click off once full, even after the ventectomy? I don't want fuel running down the side of my ride (or me)!!
 

jasonlava

Veteran Member
Joined
Jun 20, 2003
Location
Crossville, TN
TDI
Beetle GLS TDI, 2003, White
Re: Ventectomy -- New guy\'s first mod!

I haven't done the ventectomy but I have a question since I'm still a newbie.

The nozzle that I use to fill is the huge truck nozzle. It's at a truck stop. It barely fits in the VW's neck. If filled up until the first click, then I topped off a little. Wound up spitting diesel when it was done. Do the big nozzles inadvertantly push the vent button when you stick it in or do I still have to manually vent?
Or maybe the diesel spitting out was because of the vent not being pushed?


If so then, I'll do the surgery and not have to worry.


Thanks.
 

lance71137

Well-known member
Joined
Jul 14, 2003
TDI
Jetta,03,Blue
Re: Ventectomy -- New guy\'s first mod!

Using the big nozzle does NOT push in the vent. Even after doing the ventectomy, you may still have issues with the big nozzle since it will partially block the air trying to get out of the tank. If you can, avoid the large nozzles.

Lance
 

Dante Casali

Veteran Member
Joined
Nov 14, 2001
Location
SE, Michigan
TDI
2002 Golf TDI GLS silver/black
Re: Ventectomy -- New guy\'s first mod!

Most Truck stops have a "RV" pump because diesel Rec Vehicles use the car sized filler necks. Look to see if theres one at your truck stop, they sometimes are not labled.
 

compu_85

Gadget Guy
Joined
Sep 29, 2003
Location
La Conner, WA
TDI
... None :S
Re: Ventectomy -- New guy\'s first mod!

Yep.. well, it's not necissary, but you can do it to put more fule in your tank


-Jason
 

compu_85

Gadget Guy
Joined
Sep 29, 2003
Location
La Conner, WA
TDI
... None :S
Re: Ventectomy -- New guy\'s first mod!

Trying to do the ventectomy but can't get the white piece to pop out from the instructions. Am I missing something? I push in on the white tab but nothing happens. I also tried pushing the vent switch or what ever it's called that's attached but still no luck. Thanks
On mine, it did't just pop out either: I had to push in on the button as I pryed the tabs... and broke one of them off
But It has stayed in place, so I'm gunna call it a non issue.

-Jason
 

SilverTDIGolf

Veteran Member
Joined
Oct 10, 2004
Location
Lower Mainland, BC, Canada.
TDI
2006 Golf GLS TDI
Re: Ventectomy -- New guy\'s first mod!

Just think in the time it took you to pull that at work you would have travelled 6.428 miles, what took you so long? <img border="0" title="" alt="[Wink]" src="images/icons/wink.gif" />

Fueling will be much easier from here on out almost like single point refueling! The hassles that tab create remind me of the fuel tanks on King Airs, PITA since they foam up so bad.

DB
LOL!!!!! Tell me about it!!!!!!!!!


Every time we get a new guy/girl in, we tell him/her to fuel nice and slow on the KingAir, as it foams up. They think we are just messin with them, so they go full speed and end up wearing it!
Also, how about those lovely original Beaver fuel tanks? You are merrily fuelling away, and all of a sudden, BLAM!!! It overflows.. (If you aren't paying super careful attention).
The worst thing I ever had to do was fuel a Dash-8 overwing in the pounding rain.....

Anyway, back on topic.. The Ventectomy is a good mod.
 

blueshadow

Active member
Joined
Jan 16, 2005
Location
Central NH
TDI
2005 Jetta wagon GLS 5 spd, shadow blue
Re: Ventectomy -- New guy\'s first mod!

Just finished a ventectomy on my '05 Jetta wagon. Once I took a look at GeWilli's pictures it was really easy. I was having trouble locating the white tab - its on the bottom of the "finger". You have to get down below the level of the filler to see it. Thanks!
 
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