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Wales
by Joske Vermeule, September 1
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Jun 14th, 2026
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Joined: Jun 2012
Posts: 508 Likes: 1
Dreiradschubser Talk Morgan Regular
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OP
Dreiradschubser Talk Morgan Regular
Joined: Jun 2012
Posts: 508 Likes: 1 |
I know, this was discussed earlier, but I do not find the thread. I have this rattling noise just behind my neck (like a loose screw or bolt) but I don't find the source. Where to find and what to do?
Achim alias Waldemar
4 aircooled cylinders, 7 tires, not waterproof: my m3w Bluebelle (2013) and my 2CV Gundel (1990)
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Joined: Apr 2013
Posts: 1,370 Likes: 11
Has a lot to Say!
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Has a lot to Say!
Joined: Apr 2013
Posts: 1,370 Likes: 11 |
Open boot, remove plastic tray to access the rear. Look around. After my chassis rebuild the right-hand roll hoop is bolted down and will not leave but it rattles. Look for any loose bolts in the rear as the sound will easily travel through the seat-belt hole.
I have learned to do this at least twice a year as things get loose.
Loctite is your friend!
What's your mileage? Who cares. Is it practical? See #1. What happens when it rains? You get wet.
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Joined: May 2010
Posts: 9,545 Likes: 132
Needs to Get Out More!
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Needs to Get Out More!
Joined: May 2010
Posts: 9,545 Likes: 132 |
What type of hood do you have? If the classic stud type not easy up then check how secure the hoops are. Mine are held down when the hood is not needed by leather straps and rattled until I discovered the straps not fastened.
Plus Four MY23 Furka Rouge
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Joined: Dec 2009
Posts: 37,424 Likes: 978
Tricky Dicky Member of the Inner Circle
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Tricky Dicky Member of the Inner Circle
Joined: Dec 2009
Posts: 37,424 Likes: 978 |
What type of hood do you have? If the classic stud type not easy up then check how secure the hoops are. Mine are held down when the hood is not needed by leather straps and rattled until I discovered the straps not fastened. It's an M3W 
2009 4/4 Sport Henrietta
1999 Indigo Blue +8
2009 4/4 Sport Green prev
1993 Con Green +8 prev
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Joined: Sep 2013
Posts: 1,118
Has a lot to Say!
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Has a lot to Say!
Joined: Sep 2013
Posts: 1,118 |
It's arthritis ! Keep taking the tablets!🤗
RogT Old Git Racer ex 4/4 sand 2013
+4 GDI Royal Ivory 2015
Ford Fiesta ST2
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Joined: Feb 2016
Posts: 8,677 Likes: 412
Needs to Get Out More!
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Needs to Get Out More!
Joined: Feb 2016
Posts: 8,677 Likes: 412 |
I know, this was discussed earlier, but I do not find the thread. I have this rattling noise just behind my neck (like a loose screw or bolt) but I don't find the source. Where to find and what to do?
Achim alias Waldemar This is usually the rollover valve (6) in the fuel system rattling as its not well supported.  It can usually be silenced by using a plastic cable tie to hold it firmly against another pipe.
Richard
2018 Roadster 3.7
1966 Land Rover S2a 88
2024 Royal Enfield Guerrilla 450
1945 Guzzi Airone
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Joined: Feb 2016
Posts: 775 Likes: 33
Talk Morgan Regular
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Talk Morgan Regular
Joined: Feb 2016
Posts: 775 Likes: 33 |
It is the rollover valve. You can flick it with your finger and hear something loose in it rattle. I’ve try insulating with foam and stabilizing with strong zip ties. Perhaps alittle better but I still hear it sometimes . The x wedge generates a lot of vibrations that cause it to rattle.
Last edited by Sportster; 28/07/18 09:57 PM.
2015 M3W, Morgan Aero Racing Stage 1, Garage 56 Stage 2, sport black, saddle tan, jeweled SS dash.
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Joined: Mar 2013
Posts: 720 Likes: 23
Talk Morgan Regular
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Talk Morgan Regular
Joined: Mar 2013
Posts: 720 Likes: 23 |
Having the same problem.
What’s the function of this valve ? Venting the fuel tank ?
Can’t we change this to something similar what’s not rattling ?
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Joined: Nov 2012
Posts: 242 Likes: 10
L - Learner Plates On
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L - Learner Plates On
Joined: Nov 2012
Posts: 242 Likes: 10 |
I have tried everything from tying it down with zip ties, plus wrapping it with everything from bubble wrap to orthopedic wrap, and the noise persists, which is hugely annoying in an otherwise hugely fun ride.
If anyone can opine on the possibility of just removing the offending piece and doing an end-to end anastomosis on the tubing, I would appreciate your comments. Preferably not theories, but someone who has actually done the valvulectomy.
Thank you.
Last edited by Piloto; 29/07/18 01:12 AM.
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Joined: Mar 2017
Posts: 2,274 Likes: 41
Talk Morgan Expert
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Talk Morgan Expert
Joined: Mar 2017
Posts: 2,274 Likes: 41 |
Having the same problem.
What’s the function of this valve ? Venting the fuel tank ?
Can’t we change this to something similar what’s not rattling ? The valves relieve fuel tank pressure and prevent fuel flow through the fuel tank vent hoses in the event of vehicle rollover. ... If the vehicle should roll over, the valve is inverted and the plunger is forced against the guideplate, preventing fuel from flowing through the vent tube.
Craig Jezz
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