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#503479 - 13/03/18 05:01 PM Leaking fuel tank
Craig Jezz Offline

Talk Morgan Regular

Registered: 27/03/17
Posts: 657
Loc: Oxon
During the annual service today at the morgan dealership, the mechanic spotted on my 4/4 a fuel leak from the tank at high level (on the joint seam)

The good news is I’m covered under warranty, however is this one of these “they all do that” ???

My car has only covered 3,700 miles (dry miles) and less than 2 years old.

Does anyone know if the new tanks have improved ?
_________________________
Craig Jezz

Morgan 4/4 Sports Sand (Williams & Wolf Tuned)
BWM 320d M Sport Xdrive

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#503482 - 13/03/18 05:07 PM Re: Leaking fuel tank [Re: Craig Jezz]
+8Rich Offline

Member of the Inner Circle

Registered: 15/12/09
Posts: 18083
Loc: Devon UK
Sorry to hear that Craig.
Sorry I don't know the answer.
_________________________
Richard
1999 Indigo +8






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#503486 - 13/03/18 05:23 PM Re: Leaking fuel tank [Re: Craig Jezz]
nick w Offline

Talk Morgan Enthusiast

Registered: 31/03/09
Posts: 1822
Originally Posted By Craig Jezzard69
During the annual service today at the morgan dealership, the mechanic spotted on my 4/4 a fuel leak from the tank at high level (on the joint seam)

The good news is I’m covered under warranty, however is this one of these “they all do that” ???

My car has only covered 3,700 miles (dry miles) and less than 2 years old.

Does anyone know if the new tanks have improved ?


My 2005 roadster tank did exactly that. Nick

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#503487 - 13/03/18 05:29 PM Re: Leaking fuel tank [Re: Craig Jezz]
SFG Offline

Talk Morgan Regular

Registered: 23/03/17
Posts: 666
Loc: South Oxfordshire
Perhaps it was the same tank, recycled?
_________________________
SFG
2012 4/4 Sport

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#503488 - 13/03/18 05:35 PM Re: Leaking fuel tank [Re: Craig Jezz]
Ray Offline

Talk Morgan Addict

Registered: 05/04/14
Posts: 3845
Loc: Llanelli
Fairly common fault on all trads, of all ages.
_________________________
.+8 Now gone for a 1800 4/4. Duratec in bright yellow.

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#503491 - 13/03/18 05:42 PM Re: Leaking fuel tank [Re: Craig Jezz]
SimonH Offline
Talk Morgan Regular

Registered: 23/02/10
Posts: 655
I’ve lost count of the amount of factory tanks I’ve rewelded
They all do that sir.....

The factory tanks have an autogenous weld, meaning no weld filler material was introduced to the weld
This also means that the weld is not particularly strong and may not have adequate penetration

For road cars the best alternative is a stainless steel fuel tank from me or one of the other suppliers

Simon @ SiFab.co.uk

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#503793 - 14/03/18 08:17 PM Re: Leaking fuel tank [Re: Craig Jezz]
Craig Jezz Offline

Talk Morgan Regular

Registered: 27/03/17
Posts: 657
Loc: Oxon
When I fill the tank with fuel and release fuel the cap, I get a sudden rush of air, quite loud !

Could this could be pressure in the tank causing the all ready weak weld joints to fail.

Does anyone else experience this, or is it.... “they all do that sir”
_________________________
Craig Jezz

Morgan 4/4 Sports Sand (Williams & Wolf Tuned)
BWM 320d M Sport Xdrive

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#503811 - 14/03/18 10:01 PM Re: Leaking fuel tank [Re: Craig Jezz]
DaveW Offline
Roadster Guru
Member of the Inner Circle

Registered: 11/12/08
Posts: 16543
Loc: South Yorkshire
Google "fuel tank venting". Some vacuum is usual, but according to the internet, cold weather can increase the vacuum (apparently).
_________________________
DaveW
2005 Corsa Red Roadster S1
2016 Saffron Yellow (Narrow) Plus 4

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#503813 - 14/03/18 10:16 PM Re: Leaking fuel tank [Re: Craig Jezz]
+8Rich Offline

Member of the Inner Circle

Registered: 15/12/09
Posts: 18083
Loc: Devon UK

I never ever noticed venting on any of my Morgan's at all.

I've never had a split tank or hose either during the 14 years of ownership and 3 cars.
_________________________
Richard
1999 Indigo +8






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#503816 - 14/03/18 10:34 PM Re: Leaking fuel tank [Re: Craig Jezz]
Craig Jezz Offline

Talk Morgan Regular

Registered: 27/03/17
Posts: 657
Loc: Oxon
I am not even 1 year into Morgan ownership, maybe I’m just unlucky!
_________________________
Craig Jezz

Morgan 4/4 Sports Sand (Williams & Wolf Tuned)
BWM 320d M Sport Xdrive

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