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Aug 24th, 2023
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Joined: Jun 2015
Posts: 1,952 Likes: 41
Talk Morgan Enthusiast
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Talk Morgan Enthusiast
Joined: Jun 2015
Posts: 1,952 Likes: 41 |
A couple of years after ownership, found that the locking cap on my plus 4 was getting tight. Now, I simply give the petrol side of it a good squirt of silicon spray once a year and it works a treat.
Doug
2011 Plus 4 in Rich Maroon
1972 750 “ComDom” sprinter
1958 Triton 650
1992 Triumph Trophy 900
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Joined: Dec 2008
Posts: 21,868 Likes: 167
Roadster Guru Member of the Inner Circle
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Roadster Guru Member of the Inner Circle
Joined: Dec 2008
Posts: 21,868 Likes: 167 |
I think the purpose of the cap is to provide some negative pressure in the tank, to contain fumes? And also in the unlikely event of turning over, to contain the fuel.
DaveW
'05 Red Roadster S1
'16 Yellow (Not the only) Narrow AR GDI Plus 4
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Joined: May 2010
Posts: 9,285 Likes: 69
Needs to Get Out More!
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Needs to Get Out More!
Joined: May 2010
Posts: 9,285 Likes: 69 |
Try spraying as much of the mechanism as you can with a lubricating spray. WD40 or similar. Test it off the car.
Plus Four MY23 Furka Rouge
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Joined: Dec 2008
Posts: 21,868 Likes: 167
Roadster Guru Member of the Inner Circle
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Roadster Guru Member of the Inner Circle
Joined: Dec 2008
Posts: 21,868 Likes: 167 |
They all seem to be stiff and it feels like its turning on a seal. But adding lube should fix it.^^
DaveW
'05 Red Roadster S1
'16 Yellow (Not the only) Narrow AR GDI Plus 4
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Joined: Sep 2009
Posts: 107 Likes: 1
L - Learner Plates On
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L - Learner Plates On
Joined: Sep 2009
Posts: 107 Likes: 1 |
If you decide to remove the keyed gas cap, just make sure the screw holding the gasket, washer and spring on the flip up cap is tight. I went to fuel up and when I popped the cap, I found the screw, washer, gasket and spring loose and on top of the keyed cap. I should probably put a little lock tight on it.
John
John Linkosky
1995 4/4
2005 Roadster
2016 3W Superdry Edition
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Joined: Feb 2019
Posts: 3,854 Likes: 2
Talk Morgan Addict
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Talk Morgan Addict
Joined: Feb 2019
Posts: 3,854 Likes: 2 |
If you decide to remove the keyed gas cap, just make sure the screw holding the gasket, washer and spring on the flip up cap is tight. I went to fuel up and when I popped the cap, I found the screw, washer, gasket and spring loose and on top of the keyed cap. I should probably put a little lock tight on it.
John Excellent suggestion.
The light at the end of the tunnel is actually a train. 2019 M3W
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Joined: Jun 2016
Posts: 371
Learner Plates Off!
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Learner Plates Off!
Joined: Jun 2016
Posts: 371 |
I had the problem recently. I contacted Morgan and was quoted £170 for the whole assembly, part no 3FL501. I couldn't buy the insert alone from them. I then found my spare unused key was fine, it held locked inside the insert. I contacted Newton equipment, who make the insert and found they sell pairs of spare keys marked 044. My originals are marked 044, which it appears they all are. I ordered a pair and they work fine, so now I have 3 good ones... https://shop.newton-equipment.com/products/spare-keys-for-zero-range-aa-ac-8?variant=40649837150396
Last edited by Glenn; 01/10/21 02:17 PM.
'16 M3W
'44 Willys Jeep
'16 Westfield 11
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Joined: Feb 2021
Posts: 38
Just Getting Started
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Just Getting Started
Joined: Feb 2021
Posts: 38 |
but another guy after fiddling and wiggling the gas cap, eventually got it to relock and could remove the cap. Since that time I've simply left the interior cap out, and relied on the outer seal to retain my gas.
Just call me the fiddler/wiggler 
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Joined: Jul 2013
Posts: 434 Likes: 5
Learner Plates Off!
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OP
Learner Plates Off!
Joined: Jul 2013
Posts: 434 Likes: 5 |
but another guy after fiddling and wiggling the gas cap, eventually got it to relock and could remove the cap. Since that time I've simply left the interior cap out, and relied on the outer seal to retain my gas.
Just call me the fiddler/wiggler Yes, Andrew, you certainly saved me a lot of tear down and rebuild work. I often take the hard road when a simpler solution may be at hand. 
Craig - Texas, USA
2021 M3W
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Joined: Feb 2021
Posts: 38
Just Getting Started
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Just Getting Started
Joined: Feb 2021
Posts: 38 |
Yes, Andrew, you certainly saved me a lot of tear down and rebuild work. I often take the hard road when a simpler solution may be at hand. My next suggestion was going to be a little JB Weld and a stick to pull it out. I try the easy routes, first.
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