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SORN
by OldSkrote - 31/07/25 02:07 PM
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New
by Rex_tulips - 30/07/25 07:59 PM
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Forums34
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Aug 24th, 2023
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Joined: Aug 2014
Posts: 24
New to Talk Morgan
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OP
New to Talk Morgan
Joined: Aug 2014
Posts: 24 |
Hi folks,
Nothing critical but I wanted to check if this is a known issue:
After tacking a few tours, I realized that the oil tank cap constantly loosen itself. Little amounts of oil leaking through the unscrewed cap. After examining the cap I realized: If I completely tighten the cap, the rubber gasket will get pushed inside the tank.
Obviously the gasket is not fitting 100%.
After a short trip yesterday I tried to screw the cap less tight to keep the gasket in place.
But with that I’m not sure if the cap won´t unscrew due to the vibrations...
Anyone with the same issue? Any smart ideas?
Thanks a lot!
Cheers and have a good one! Alex
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Joined: May 2012
Posts: 1,790 Likes: 3
Talk Morgan Enthusiast
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Talk Morgan Enthusiast
Joined: May 2012
Posts: 1,790 Likes: 3 |
I had this problem, oil was dripping down onto the bell housing. A new gasket was fitted at first service and has been ok since then.
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Joined: Aug 2014
Posts: 24
New to Talk Morgan
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OP
New to Talk Morgan
Joined: Aug 2014
Posts: 24 |
Thank you - I´ll check with my dealer and see what I can do...
Cheers and have a good one! Alex
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Joined: Aug 2013
Posts: 1,562
Talk Morgan Enthusiast
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Talk Morgan Enthusiast
Joined: Aug 2013
Posts: 1,562 |
Same issue here, after a couple of goes my dealer eventually fitted a 2014 cap which has a substantial washer on the inside of the cap supporting the rubber washer. This allows the cap to be screwed down hard so no leaks, and the rubber washer is properly supported so it doesn't rip etc.
My advise would be to refer the issue to your dealer / morgan. If the washer tears and falls into the tank , it could block the exit with untold damage.
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Joined: Jun 2012
Posts: 508 Likes: 1
Dreiradschubser Talk Morgan Regular
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Dreiradschubser Talk Morgan Regular
Joined: Jun 2012
Posts: 508 Likes: 1 |
Same issue here, after a couple of goes my dealer eventually fitted a 2014 cap which has a substantial washer on the inside of the cap supporting the rubber washer. This allows the cap to be screwed down hard so no leaks, and the rubber washer is properly supported so it doesn't rip etc.
My advise would be to refer the issue to your dealer / morgan. If the washer tears and falls into the tank , it could block the exit with untold damage. same with my car
4 aircooled cylinders, 7 tires, not waterproof: my m3w Bluebelle (2013) and my 2CV Gundel (1990)
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Joined: Aug 2014
Posts: 24
New to Talk Morgan
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OP
New to Talk Morgan
Joined: Aug 2014
Posts: 24 |
Hi Nippymog,
excellent information - I'll check this with my dealer and let you know the results - the solution you described seems to be the best possible way...
Cheers and have a good one! Alex
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Joined: Aug 2014
Posts: 24
New to Talk Morgan
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OP
New to Talk Morgan
Joined: Aug 2014
Posts: 24 |
Hi Folks,
cheers to my Morgan dealer: Believe it or not - I sent him an email on thursday, today I found the new oil tank cap with a new (and correct) gasket (inside rubber washer).
Already installed, tested and everything is clean, save now and no more leaking oil.
I´m deeply impressed and shows me their level of engagement - pretty promising!
Happy Weekend to all of you!
Cheers and have a good one! Alex
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Joined: Nov 2013
Posts: 756 Likes: 9
Talk Morgan Regular
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Talk Morgan Regular
Joined: Nov 2013
Posts: 756 Likes: 9 |
what works is to add in addition to the original joint piece of machined aluminum with a groove and O-ring  
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Joined: Aug 2013
Posts: 213
L - Learner Plates On
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L - Learner Plates On
Joined: Aug 2013
Posts: 213 |
This happened to me too. I asked my dealer for a new cap and rubber gasket. Mine I think had fallen into the tank and the retrieval resulted in a small tear from the middle hole out wards. Oil was leaking down the sides. Amazingly Morgan sent the dealer a cap with a dip stick attached, not once but twice. My dealer actually took the gasket off his demonstrator & sent it to me. Surprised others have had the same issue. I don't recognize the cap / no gasket in the picture above my post.
2005 Roadster
2013 M3W
MOG South
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Joined: Dec 2013
Posts: 11
New to Talk Morgan
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New to Talk Morgan
Joined: Dec 2013
Posts: 11 |
The same happened to my 2014 two times. Now I have made my own gasket with rubber that has a fabric layer.
Thomas - 14´ M3W Black
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