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Jun 14th, 2026
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Joined: Feb 2016
Posts: 2,033 Likes: 23
Talk Morgan Expert
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Talk Morgan Expert
Joined: Feb 2016
Posts: 2,033 Likes: 23 |
The orange breather is shown here, I have small hands and arms and can access it by removing the cover in the boot, otherwise its seats out and then the aluminum back panel to gain access, as shown in the picture. ![[Linked Image]](https://www.tm-img.com/images/2019/11/10/BBvent.jpg) Thanks for that Rog, will make a note! 
Aero 8 GTN #11
"What we do in life.. echoes in eternity."
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Joined: May 2020
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OP
New to Talk Morgan
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My euphoria of a dry bevel box was short lived, after a longish run in the current warm weather oil once again dripped onto the driveway. I have contacted the supplying dealer who have arranged Morgan recovery to collect the car for further investigation.
2020 Plus 4 Rhapsody Blue
2020 M3W Orange Shark
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Joined: Oct 2007
Posts: 423 Likes: 2
Learner Plates Off!
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Learner Plates Off!
Joined: Oct 2007
Posts: 423 Likes: 2 |
My euphoria of a dry bevel box was short lived, after a longish run in the current warm weather oil once again dripped onto the driveway. I have contacted the supplying dealer who have arranged Morgan recovery to collect the car for further investigation. You may want to pull the seats and the console cover and clean under there. The oil from the seal leaking pools on the tray under the driveshaft and may continue to drip out if you do not clean it.l I found this with my 3 wheeler. Was about to replace the seal when I read your post about the breather. I found the same issue with pressure in the box when I removed the orange breather. Turns out the metal tube that goes into the orange cap is glued in. I found that mine was totally blocked with excess adhesive. I had a spare so I replaced it. Will be cleaning the area under the drive shaft to see if I have any further leakage.
Lance
1981 Plus 8
2016 Three Wheeler
2022 Corvette Stingray Convertible z51
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Joined: Nov 2011
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Talk Morgan Guru
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Talk Morgan Guru
Joined: Nov 2011
Posts: 7,342 Likes: 49 |
My euphoria of a dry bevel box was short lived, after a longish run in the current warm weather oil once again dripped onto the driveway. I have contacted the supplying dealer who have arranged Morgan recovery to collect the car for further investigation. That's a shame crooky
A Morgan Identified Fastidious Owner...
2011 4/4 Bespoke, 1981 Delorean, Auburn Boat Tail
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Joined: Feb 2019
Posts: 3,857 Likes: 2
Talk Morgan Addict
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Talk Morgan Addict
Joined: Feb 2019
Posts: 3,857 Likes: 2 |
The plugged vent cap in the bb makes me want to know how old the gear oil was when the leak was first noticed, ie how many miles on the bb without an oil change?
2019 M3W Sold and is now in Las Vegas enjoying the showgirls :-)
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Joined: May 2020
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New to Talk Morgan
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[quote=LightSpeed]The plugged vent cap in the bb makes me want to know how old the gear oil was when the leak was first noticed, ie how many miles on the bb without an oil change?
The car was just one week old and had covered a total of 170 miles. Currently the car resides at the supplying dealer awaiting fitment of a new factory BB which is a bit excessive as it probably just needs a seal.
2020 Plus 4 Rhapsody Blue
2020 M3W Orange Shark
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Joined: Jun 2012
Posts: 2,243 Likes: 73
Talk Morgan Expert
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Talk Morgan Expert
Joined: Jun 2012
Posts: 2,243 Likes: 73 |
It seems that the dealers don't change the £3 seal, they only change the £600 Bevel Box. Changing seals is only possible for owners doing it themselves, yours is under warranty at least. The new box will come fitted with a cheap Nitrile seal that is very marginal for the temperature that the BB reaches, a Viton seal (at about 4 times the price) would be a much better bet, something to keep in mind once the warranty expires. Instructions on how to do this fairly straight forward job are on the MTWC website. https://www.mtwc.co.uk/news-post/ I know I keep putting this link on here but there is quite a lot of information on there now for the M3W and many of the problems and questions that come up on this forum are covered on it.
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Joined: Feb 2019
Posts: 3,857 Likes: 2
Talk Morgan Addict
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Talk Morgan Addict
Joined: Feb 2019
Posts: 3,857 Likes: 2 |
[quote=LightSpeed]The plugged vent cap in the bb makes me want to know how old the gear oil was when the leak was first noticed, ie how many miles on the bb without an oil change?
The car was just one week old and had covered a total of 170 miles. Currently the car resides at the supplying dealer awaiting fitment of a new factory BB which is a bit excessive as it probably just needs a seal.
Sound like the oem vent plug was defective and not venting, or it got plugged with manufacturing debris from the bb causing it to plug. Pity. It seems excessive to change the entire bb just for the front seal unless MMC knows something about a batch of bb that were made wrong.
2019 M3W Sold and is now in Las Vegas enjoying the showgirls :-)
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Joined: May 2011
Posts: 1,625 Likes: 25
Talk Morgan Enthusiast
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Talk Morgan Enthusiast
Joined: May 2011
Posts: 1,625 Likes: 25 |
It seems excessive to change the entire bb just for the front seal unless MMC knows something about a batch of bb that were made wrong.
It seems it is standard practice for MMC to replace the entire bevel box, I had 2 replaced under warranty for oil seal leaks on my 2013 M3W and have since had to replace the seal myself.
Last edited by Rog G; 24/07/20 11:52 AM.
2021 M3W
2013 M3W - Sold
1971 4/4 2 Seater
1934 Sports
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Joined: Aug 2016
Posts: 415
Learner Plates Off!
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Learner Plates Off!
Joined: Aug 2016
Posts: 415 |
It seems excessive to change the entire bb just for the front seal unless MMC knows something about a batch of bb that were made wrong.
It seems it is standard practice for MMC to replace the entire bevel box, I had 2 replaced under warranty for oil seal leaks on my 2013 M3W and have since had to replace the seal myself. Possibly MMC have their own warranty claim against Quaife? I assume the BBs get returned to MMC for reconditioning either by them or Quaife.
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