Go Back   Horizons Unlimited - The HUBB > 4 wheels > Equipping the Overland Vehicle
Equipping the Overland Vehicle Vehicle accessories - Making your home away from home comfortable, safe and reliable.
Photo by Alessio Corradini, on the Salar de Uyuni, Bolivia, of two locals

I haven't been everywhere...
but it's on my list!


Photo by Alessio Corradini,
on the Salar de Uyuni, Bolivia,
of two locals



Overlanders Handbook - everything you need to know, available NOW!

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 11 Apr 2006
Registered Users
Veteran HUBBer
 
Join Date: Feb 2004
Location: United Kingdom
Posts: 602
Is my fuel tank breather blocked?

My Hilux has a small black valve on the breather pipe with an arrow pointing out (i.e. away from the tank) which to me indicates that it is a one-way valve to allow air to escape from the tank (i.e. due to thermal expansion of the air in the tank). The trouble is, it does not allow air to come into the tank to replace fuel as it is drawn to the engine. This is evidenced by a rush of inward moving air when removing the fuel filler cap (the cap has no breather / hole). Once, when the tank was really empty, the vacuum was so strong it starved the engine of fuel.

I've blown the the valve myself, and can confirm it only allows air to travel in one direction.

Now, Toyota's being as well designed as they are, I'm wondering what's gone wrong here. Is it that someone has fitted the valve back to front in the breather line? Or is there a problem with the send / return mechanism in the fuel pump?

At present I'm running it without the valve in the breather line, without any problems. No air movement when removing the filler cap.

Any help would be much appreciated,

Cheers

Dan
__________________
4.5 years around Eurasia in a Toyota Hilux|http://eurasiaoverland.wordpress.com/
Pictures Here|https://picasaweb.google.com/113619413612674951960
Reply With Quote
  #2  
Old 12 Apr 2006
Gipper's Avatar
Contributing Member
Veteran HUBBer
 
Join Date: Mar 2004
Location: Saltspring Island,Canada/Poole,UK
Posts: 1,081
Smile Strange...

Hi Dan, not so sure on Toyotas - but most vehicle manufactors used to use breathers in the filler caps (on slightly older models) so maybe at some point the cap has been replaced with a non standard ???
OR As you say maybe the valve has been refitted the wrong way around ??? - try fitting it in other way around and see how it goes for a while.
Cheers
Grif
__________________
Cheers
Grif

'11 KTM 450 EXC
'09 Suzuki DR650
'00 Discovery Series 2 V8
'95 Defender 90 300 Tdi Overlander
http://gipperstravels.blogspot.ca
Reply With Quote
  #3  
Old 13 Apr 2006
Registered Users
New on the HUBB
 
Join Date: Apr 2006
Location: Canada
Posts: 1
Jerry

The new laws are that a gas tank can not vent to the atmosphere.
Reply With Quote
  #4  
Old 19 Apr 2006
Contributing Member
Veteran HUBBer
 
Join Date: Jun 2005
Location: Ledbury, Herefordshire, UK
Posts: 324
Hi,

If your fuel cap is anything like the 80 series landcruisers then you will have a vent valve in the cap. This can be dismantled, but do it carefully because the plastic can get quite brittle and I seem to recall a spring bouncing out.

Also on the 80 the tank breather seems to have a small in line filter (similar to the small plastic fuel filters you can get) - I have removed this on mine and extended the breather pipe up and out of the way from dirt/water ingress.
__________________
Cheers,

Julian Voelcker
Overland Cruisers - Specialising in Land Cruiser preparation and servicing.
Reply With Quote
  #5  
Old 21 Apr 2006
Contributing Member
Veteran HUBBer
 
Join Date: Jul 2002
Location: Sydney, NSW, Australia
Posts: 1,362
Quote:
Originally Posted by CZrider
The new laws are that a gas tank can not vent to the atmosphere.
Indeed. The fuel tank should 'vent' to a charcoal filled canister - the motor, when, running draws air from there so burning any petrol fumes before they get to us.

Possibly your charcoal canister has been flooded with liquid petrol (rather than vapour) and is blocked. Find it and test if you can blow through it ... beware of sucking petrol! Should be somewhere in the engine bay if they have done things right.. but it could be elsewhere. Or someone has blocked off the polution control lines .. and has done this one too?
__________________
---
Regards Frank Warner
motorcycles BMW R80 G/S 1981, BMW K11LT 1993, BMW K75 G/S
Reply With Quote
  #6  
Old 23 Apr 2006
Registered Users
Veteran HUBBer
 
Join Date: Feb 2004
Location: United Kingdom
Posts: 602
There's no such charcoal filter on my car - for the record it's a diesel - I don't know whether this makes any difference? My guess is that my car (1993) pre-dates any such charcoal chenanegans.

Julian - I think your 80 Landcruiser has the same setup as my 105 Hilux, but there is no breather as far as I can see in the cap. I do have a spare, which I may try but since removing that filter / valve on the tank breather (not filler) has resolve the issue, I think I'll just copy your idea, and extend the pipe up behind the cab.

As long as the problem is not with my fuel pupm, I'm happy.

Thanks for all your replies,

Dan
__________________
4.5 years around Eurasia in a Toyota Hilux|http://eurasiaoverland.wordpress.com/
Pictures Here|https://picasaweb.google.com/113619413612674951960
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 Registered Users and/or Members and 1 guests)
 

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Fuel tank 'side' panniers andybee Equipment Reviews 22 9 Sep 2007 22:26
Fuel tank dent repair Jones Yamaha Tech 8 2 May 2005 04:58
Filtering fuel - before and after going in the tank roamingyak 4 wheel Overland Travel 9 10 Sep 2004 06:40
Welding a fuel tank into a HiLux pick-up danielsprague Equipping the Overland Vehicle 2 21 Jul 2004 18:10
siphon fuel out of your tank for your stove gmarch TRAVEL Hints and Tips 9 29 Apr 2004 06:59

 
 

Announcements

Thinking about traveling? Not sure about the whole thing? Watch the HU Achievable Dream Video Trailers and then get ALL the information you need to get inspired and learn how to travel anywhere in the world!

Have YOU ever wondered who has ridden around the world? We did too - and now here's the list of Circumnavigators!
Check it out now
, and add your information if we didn't find you.

Next HU Eventscalendar

ALL Dates subject to change.

2024:

  • California: April 18-21
  • Virginia: April 25-28
  • Germany Summer: May 9-12
  • Québec: May 17-19
  • Bulgaria Mini: July 5-7
  • CanWest: July 11-14
  • Switzerland: August 15-18
  • Ecuador: August 23-25
  • Romania: August 30-Sept 1
  • Austria: September 12-15
  • France: September 20-22
  • Germany Autumn: Oct 31-Nov 3

2025 Confirmed Events:

  • Virginia: April 24-27 2025
  • Queensland is back! May 2-4 2025
  • Germany Summer: May 29-June 1 2025
  • CanWest: July 10-13 2025
  • Switzerland: Date TBC
  • Ecuador: Date TBC
  • Romania: Date TBC
  • Austria: Sept. 11-15
  • California: September 18-21
  • France: September 19-21 2025
  • Germany Autumn: Oct 30-Nov 2 2025

Add yourself to the Updates List for each event!

Questions about an event? Ask here

See all event details

 
World's most listened to Adventure Motorbike Show!
Check the RAW segments; Grant, your HU host is on every month!
Episodes below to listen to while you, err, pretend to do something or other...

Adventurous Bikers – We've got all your Hygiene & Protection needs SORTED! Powdered Hair & Body Wash, Moisturising Cream Insect Repellent, and Moisturising Cream Sunscreen SPF50. ESSENTIAL | CONVENIENT | FUNCTIONAL.

2020 Edition of Chris Scott's Adventure Motorcycling Handbook.

2020 Edition of Chris Scott's Adventure Motorcycling Handbook.

"Ultimate global guide for red-blooded bikers planning overseas exploration. Covers choice & preparation of best bike, shipping overseas, baggage design, riding techniques, travel health, visas, documentation, safety and useful addresses." Recommended. (Grant)



Ripcord Rescue Travel Insurance.

Ripcord Rescue Travel Insurance™ combines into a single integrated program the best evacuation and rescue with the premier travel insurance coverages designed for adventurers.

Led by special operations veterans, Stanford Medicine affiliated physicians, paramedics and other travel experts, Ripcord is perfect for adventure seekers, climbers, skiers, sports enthusiasts, hunters, international travelers, humanitarian efforts, expeditions and more.

Ripcord travel protection is now available for ALL nationalities, and travel is covered on motorcycles of all sizes!


 

What others say about HU...

"This site is the BIBLE for international bike travelers." Greg, Australia

"Thank you! The web site, The travels, The insight, The inspiration, Everything, just thanks." Colin, UK

"My friend and I are planning a trip from Singapore to England... We found (the HU) site invaluable as an aid to planning and have based a lot of our purchases (bikes, riding gear, etc.) on what we have learned from this site." Phil, Australia

"I for one always had an adventurous spirit, but you and Susan lit the fire for my trip and I'll be forever grateful for what you two do to inspire others to just do it." Brent, USA

"Your website is a mecca of valuable information and the (video) series is informative, entertaining, and inspiring!" Jennifer, Canada

"Your worldwide organisation and events are the Go To places to for all serious touring and aspiring touring bikers." Trevor, South Africa

"This is the answer to all my questions." Haydn, Australia

"Keep going the excellent work you are doing for Horizons Unlimited - I love it!" Thomas, Germany

Lots more comments here!



Five books by Graham Field!

Diaries of a compulsive traveller
by Graham Field
Book, eBook, Audiobook

"A compelling, honest, inspiring and entertaining writing style with a built-in feel-good factor" Get them NOW from the authors' website and Amazon.com, Amazon.ca, Amazon.co.uk.



Back Road Map Books and Backroad GPS Maps for all of Canada - a must have!

New to Horizons Unlimited?

New to motorcycle travelling? New to the HU site? Confused? Too many options? It's really very simple - just 4 easy steps!

Horizons Unlimited was founded in 1997 by Grant and Susan Johnson following their journey around the world on a BMW R80G/S.

Susan and Grant Johnson Read more about Grant & Susan's story

Membership - help keep us going!

Horizons Unlimited is not a big multi-national company, just two people who love motorcycle travel and have grown what started as a hobby in 1997 into a full time job (usually 8-10 hours per day and 7 days a week) and a labour of love. To keep it going and a roof over our heads, we run events all over the world with the help of volunteers; we sell inspirational and informative DVDs; we have a few selected advertisers; and we make a small amount from memberships.

You don't have to be a Member to come to an HU meeting, access the website, or ask questions on the HUBB. What you get for your membership contribution is our sincere gratitude, good karma and knowing that you're helping to keep the motorcycle travel dream alive. Contributing Members and Gold Members do get additional features on the HUBB. Here's a list of all the Member benefits on the HUBB.




All times are GMT +1. The time now is 19:26.