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Sold
by simon8201 - 09/09/26 01:46 PM
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Wales
by Joske Vermeule, September 1
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Forums39
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Jun 14th, 2026
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Joined: Nov 2013
Posts: 1,947
Talk Morgan Enthusiast
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Talk Morgan Enthusiast
Joined: Nov 2013
Posts: 1,947 |
My second oil cap gasket is now swollen.
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Joined: Feb 2014
Posts: 368 Likes: 1
Learner Plates Off!
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Learner Plates Off!
Joined: Feb 2014
Posts: 368 Likes: 1 |
My 2013 filler cap has a cone shaped rubber gasket. I drilled the cap, made a cone shaped metal washer and secured with a bolt and lock nut. About a eighth of an inch of gasket shows around the outer edge for sealing. I'm not sure it was needed better safe than sorry.
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Joined: Jul 2015
Posts: 303
Learner Plates Off!
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Learner Plates Off!
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I hope someone from Morgan are reading this and find a solution to this, in the meantime a drop of oil smeared on the rubber to help tightening and not deform the seal ,like you would do on oil fitter rubber maybe
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Joined: Sep 2014
Posts: 990
Talk Morgan Regular
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OP
Talk Morgan Regular
Joined: Sep 2014
Posts: 990 |
Rolsmith - good idea. However my new seal from morgan wasn't cone shaped but flat - it went cone shaped once it had soaked up some oil! Sure you idea will work. I have used a large metal washer that leaves just a small ring of rubber showing that seals the edge/lip only.
2015 Morgan 4/4 (Wolf fettled) previously 2014 M3W
MINI Cooper S and numerous BMC/BL relics.
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Joined: Dec 2014
Posts: 64
Just Getting Started
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Just Getting Started
Joined: Dec 2014
Posts: 64 |
I have just made up this arrangement: http://tinypic.com/r/n55tm1/8http://tinypic.com/r/2i293cp/8I need to keep an eye on the condition of the O ring since it just came from my 'come in handy' box. But it can't go anywhere - the plug is a close fit in the filler tube.
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Joined: Nov 2012
Posts: 214
L - Learner Plates On
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L - Learner Plates On
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 like
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Joined: Jul 2015
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Learner Plates Off!
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Learner Plates Off!
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Mate what a top job ,you might be making lots lol
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Joined: Jun 2015
Posts: 55
Just Getting Started
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Just Getting Started
Joined: Jun 2015
Posts: 55 |
This was my "gasket". The dealer replaced it with a cap that was drilled through the middle and a similar rubber gasket was bolted onto the underside of the cap. I can get a picture of that later possibly. Thanks to this forum I knew what to look for and possibly saved myself a big problem.  image by mattwsutton, on Flickr
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Joined: Aug 2013
Posts: 1,562
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Talk Morgan Enthusiast
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Joined: May 2014
Posts: 2,780 Likes: 5
Talk Morgan Expert
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Talk Morgan Expert
Joined: May 2014
Posts: 2,780 Likes: 5 |
PTFE tape is not something I would use anywhere near an oil system. Great for water, but in oil you will run a risk of small bits of ptfe finding their way into the engine.
To seal the lid, you need something that is soft and will deform to the lip of the tank to prevent leaks, and will not degrade or break up under constant contact with hot oil.
Cork gasket meets both these criteria and has been used in such applications for over a century. Why try to reinvent a wheel? Agree Tim, in similar situations I've seen a leather washer used for years, never deforms. Sometimes we can over complicate things.
Steve
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