guzziriders.org - moto guzzi forum Homepage
Forum Home Forum Home > Technical > CARC models
  New Posts New Posts RSS Feed - 1200 Sport - tank leaking
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

1200 Sport - tank leaking

 Post Reply Post Reply
Author
Message
guzzigraham View Drop Down
Falcone
Falcone


Joined: 31 Jan 2017
Location: West Sussex
Status: Offline
Points: 64
Post Options Post Options   Thanks (0) Thanks(0)   Quote guzzigraham Quote  Post ReplyReply Direct Link To This Post Topic: 1200 Sport - tank leaking
    Posted: 05 Jan 2019 at 14:19
Been chasing a minor fuel leak on my V1200 Sport in the shed this morning. Thought the infamous sticking fuel connector was the cause but after a careful look there is a hairline vertical crack at the back of the tank just above where the moulding is for the rear bolt hole. I suppose the good news is that the fuel pump cover is at the back around here so I should be able to get to the inside surface.  Anyone else come across this and / have some advice on how to seal it ?  
1200 Sport - new to me 2016
T3 California - long gone
Back to Top
Brian UK View Drop Down
Moderator Group
Moderator Group
Avatar

Joined: 13 May 2014
Location: Surrey
Status: Online
Points: 9764
Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian UK Quote  Post ReplyReply Direct Link To This Post Posted: 05 Jan 2019 at 17:41
Well firstly you will have to drain the tank and dry it to get all the fuel vapour out of the crack.

Not sure what plastic the tank is made from though.

Had your tank expanded making lining up of that rear bolt extremely difficult? Trying to think of another reason for the crack.

Brian.

Better 5 minutes late in this world than years early in the next.
Back to Top
Ken-Guzzibear View Drop Down
Moderator Group
Moderator Group
Avatar

Joined: 13 May 2014
Location: Sileby Leics
Status: Offline
Points: 5321
Post Options Post Options   Thanks (0) Thanks(0)   Quote Ken-Guzzibear Quote  Post ReplyReply Direct Link To This Post Posted: 05 Jan 2019 at 20:29
Frosts do a tank repair kit
The Older i Get, The Better I Was
Back to Top
Brian UK View Drop Down
Moderator Group
Moderator Group
Avatar

Joined: 13 May 2014
Location: Surrey
Status: Online
Points: 9764
Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian UK Quote  Post ReplyReply Direct Link To This Post Posted: 05 Jan 2019 at 20:47
This might give some useful information. http://www.hendersons.co.uk/mailer1.html

Don't know if the tank material is marked on the tank, such as ABS, PP etc. Makes a lot of difference. What will mend completely one type of plastic won't touch another.


Edited by Brian UK - 05 Jan 2019 at 20:50
Brian.

Better 5 minutes late in this world than years early in the next.
Back to Top
Brian UK View Drop Down
Moderator Group
Moderator Group
Avatar

Joined: 13 May 2014
Location: Surrey
Status: Online
Points: 9764
Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian UK Quote  Post ReplyReply Direct Link To This Post Posted: 05 Jan 2019 at 20:52
The Frost kits seem to be for metal tanks.
Indeed, on checking they say not suitable for plastic tanks.


Ideally you need something which will weld into the existing material, not just stick to the surface.

Hendersons are the specialists though no doubt others also exist.

You can get plastic repair putty (Quik Steel etc.), but that may or may not give a permanent repair.

Loctite also do one.


Edited by Brian UK - 05 Jan 2019 at 20:59
Brian.

Better 5 minutes late in this world than years early in the next.
Back to Top
Griffic View Drop Down
Falcone
Falcone


Joined: 19 Jun 2016
Location: Bournemouth
Status: Offline
Points: 74
Post Options Post Options   Thanks (0) Thanks(0)   Quote Griffic Quote  Post ReplyReply Direct Link To This Post Posted: 05 Jan 2019 at 22:55
Sorry to hear of your problem. My 2008 reg sport is showing signs of several paint  blisters and some distortion that I assume are due to the effects of ethanol and I sometimes wonder what it’s life expectancy is. 
Repair might be the best option for your tank, but I would wonder if the tank material has deteriorated or deformed enough to cause cracking, if a new tank would be a better option. 
There are a couple of new unpainted tanks on eBay from Italian sellers at the moment. One is around £150 inc delivery but appears to have some light surface damage and the other is over £300 but it’s difficult to see the condition as it’s been photographed whilst covered in plastic wrapping ! 
Back to Top
Brian UK View Drop Down
Moderator Group
Moderator Group
Avatar

Joined: 13 May 2014
Location: Surrey
Status: Online
Points: 9764
Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian UK Quote  Post ReplyReply Direct Link To This Post Posted: 06 Jan 2019 at 08:03
Assuming you do go along the repair route, the next thing I would do before refitting the tank would be to elongate the hole in the rear, file it towards the tank, to relieve the strain which has almost certainly caused the cracking.
Brian.

Better 5 minutes late in this world than years early in the next.
Back to Top
guzzigraham View Drop Down
Falcone
Falcone


Joined: 31 Jan 2017
Location: West Sussex
Status: Offline
Points: 64
Post Options Post Options   Thanks (0) Thanks(0)   Quote guzzigraham Quote  Post ReplyReply Direct Link To This Post Posted: 06 Jan 2019 at 11:49
Thanks for the replies folks. Definitely going for the repair route to start with. Hopefully it will work out. Will get to the back of the crack by taking off the fuel pump. May be able to see more and intend to fix from the inside if I can get the right material  I can change out the half plastic filter whilst I’m at it as I have an all metal one to put in there and save the headache of it going ping when I’m out and about. 

Wish me luck
1200 Sport - new to me 2016
T3 California - long gone
Back to Top
Brian UK View Drop Down
Moderator Group
Moderator Group
Avatar

Joined: 13 May 2014
Location: Surrey
Status: Online
Points: 9764
Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian UK Quote  Post ReplyReply Direct Link To This Post Posted: 06 Jan 2019 at 14:58
I certainly wish you luck, and let us know how you get on.
Brian.

Better 5 minutes late in this world than years early in the next.
Back to Top
Android View Drop Down
Senior Member
Senior Member
Avatar

Joined: 14 May 2014
Location: New Milton, Ham
Status: Offline
Points: 420
Post Options Post Options   Thanks (0) Thanks(0)   Quote Android Quote  Post ReplyReply Direct Link To This Post Posted: 12 Jan 2019 at 20:58
.

Edited by Android - 12 Jan 2019 at 21:14
You can't buy happiness,
But can buy a bike and that's pretty close!
Moto Guzzi 1200 Sport
Back to Top
 Post Reply Post Reply
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 12.00
Copyright ©2001-2018 Web Wiz Ltd.

This page was generated in 0.047 seconds.