Diesel fuel leak when tank full problem - Motorhome Forums, Motorhome Discussion, Motorhome Chat

User Tag List

 3Likes
  • 1 Post By bilbaoman
  • 1 Post By jiwawa
  • 1 Post By powerplus
 
LinkBack Thread Tools
post #1 of 8 (permalink) Old 22-02-2020, 19:26 Thread Starter
Junior Member
 
Join Date: Feb 2020
My Motorhome: I drive...
Posts: 3
Thanks: 1
Thanked 0 Times in 0 Posts
Diesel fuel leak when tank full problem

Hi, I have a 2016 Ducato 180BHP Panel Van Motorhome. Now done 15k miles. When I have filled the tank, when the van is driven and in particular, on a slope, diesel is leaking from somewhere high up in the filler. Is there a breather? I stop filling as soon as the pump clicks off and don't overfill. The garage who serviced it last and did its first MOT, examined it but could find nothing wrong. They simply suggested it was overfilling that had caused it. Certainly form underneath it is not possible to see anything wrong but I don't want to go to the bother of dropping the tank unless I have to. Can anyone suggest what the problem might be and where exactly fuel might be escaping.

Apologies if this has been asked before. New to the forum but guess I should do a search too.
Andy Mitchell is offline  
Sponsored Links
Advertisement
 
post #2 of 8 (permalink) Old 22-02-2020, 21:06
Senior Member
 
Join Date: Jun 2007
Location: Belfast
My Motorhome: Hymer Exsis-i 504
Posts: 7,600
Thanks: 193
Thanked 391 Times in 375 Posts
Hi Andy and welcome to the forum.

If it only happens when full I'd stop filling it n stop worrying! After 15k miles you must have some idea of how much is needed to fill her up at any time. Knock 5 or 10l off that and Bob's your uncle!

Jean
jiwawa is offline  
post #3 of 8 (permalink) Old 22-02-2020, 22:04 Thread Starter
Junior Member
 
Join Date: Feb 2020
My Motorhome: I drive...
Posts: 3
Thanks: 1
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by jiwawa View Post
Hi Andy and welcome to the forum.

If it only happens when full I'd stop filling it n stop worrying! After 15k miles you must have some idea of how much is needed to fill her up at any time. Knock 5 or 10l off that and Bob's your uncle!
Of course. But that's not right is it? That's a work around not a problem sorted. Not unreasonable to expect to be able to use the full tank. Clearly something not quite right and needs sorting.
Andy Mitchell is offline  
 
post #4 of 8 (permalink) Old 22-02-2020, 22:27
Senior Member
 
Join Date: Jun 2016
Location: East Midlands
My Motorhome: I drive...autoroller
Posts: 188
Thanks: 3
Thanked 22 Times in 20 Posts
Quote:
Originally Posted by Andy Mitchell View Post
Of course. But that's not right is it? That's a work around not a problem sorted. Not unreasonable to expect to be able to use the full tank. Clearly something not quite right and needs sorting.
If it was mine i would ensure i fully engaged the nozzle into the tank and stop filling when the pump cut out if this does not cure it i would change the filler cap if this does not cure it you either take Jeans advice or drop the tank which will cost if you are not a DIY man
Andy Mitchell likes this.
bilbaoman is online now  
The Following User Says Thank You to bilbaoman For This Useful Post:
Andy Mitchell (23-02-2020)
post #5 of 8 (permalink) Old 22-02-2020, 22:28
Senior Member
 
Join Date: Jun 2007
Location: Belfast
My Motorhome: Hymer Exsis-i 504
Posts: 7,600
Thanks: 193
Thanked 391 Times in 375 Posts
Certainly it's a workaround Andy, and yes, your tank shouldn't leak at all. But I'd be going for the workaround before I'd consider dropping the tank!

But I'm sure others will have more helpful responses.
Andy Mitchell likes this.

Jean
jiwawa is offline  
post #6 of 8 (permalink) Old 23-02-2020, 10:30 Thread Starter
Junior Member
 
Join Date: Feb 2020
My Motorhome: I drive...
Posts: 3
Thanks: 1
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by bilbaoman View Post
If it was mine i would ensure i fully engaged the nozzle into the tank and stop filling when the pump cut out if this does not cure it i would change the filler cap if this does not cure it you either take Jeans advice or drop the tank which will cost if you are not a DIY man
Thanks Bilbaoman. Yes that was my thinking too and have done both. I'm careful not to overfill and meticulous about not spilling drips either! I'm not convinced its is coming out do the filler top thats my issue. I am competent at DIY working on vehicles those these days try and avoid it - generally restricting mechanical stuff to motorbikes. Not looked into how easy it is to drop the tank. Any advice or is there likely to be a thread on here/somewhere that covers it? Not come across it yet. Thanks.
Andy Mitchell is offline  
post #7 of 8 (permalink) Old 23-02-2020, 10:47
Senior Member
 
raynipper's Avatar
 
Join Date: Aug 2008
Location: Normandy. Just up the D903 from the roundabout with the D15
My Motorhome: Hobby 750 now sold.
Posts: 21,422
Thanks: 1,071
Thanked 387 Times in 367 Posts
Send a message via Skype™ to raynipper
Is the smell when just sitting and engine off or primarily when the engine is running?
I ask because there are often return diesel pipes from the injectors that feed back to the tank. It has been known for these return pipes to become dislodged.

I did see a YouTube video about dropping a fuel tank. Can't remember which model though.

Ray.

The FSA licensed a twice convicted fraudster to handle our life´s savings. Guess what? He robbed us of £750,000. http://raynipper.com
Brexit is madness orchestrated by the insane.
raynipper is online now  
post #8 of 8 (permalink) Old 23-02-2020, 13:27
Senior Member
 
powerplus's Avatar
 
Join Date: Oct 2014
Location: berkshire
My Motorhome: swift sundance 620fb
Posts: 1,223
Thanks: 10
Thanked 123 Times in 117 Posts
hi

here is a link to a late ducato fuel tank and it shows the filler neck

from what you have described i would have thought that you may have a small leak somewhere up the top of the filler neck and looks like if you drain the tank you should be able to remove the filler neck to have a look




https://www.ebay.co.uk/itm/Tank-Fuel...0AAOSw9tFeMosP

barry
raynipper likes this.

Last edited by powerplus; 23-02-2020 at 13:30.
powerplus is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Motorhome Forums, Motorhome Discussion, Motorhome Chat forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may 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

 
For the best viewing experience please update your browser to Google Chrome