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Jun 14th, 2026
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Joined: Feb 2019
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Talk Morgan Addict
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Talk Morgan Addict
Joined: Feb 2019
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Thanks for the oil and tank info Calum. I amended my prior post a to ask a question about hose barbs.
2019 M3W Sold and is now in Las Vegas enjoying the showgirls :-)
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Joined: Oct 2012
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Talk Morgan Expert
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Talk Morgan Expert
Joined: Oct 2012
Posts: 2,822 Likes: 155 |
I've edited my last post to add a bit about the barb.
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Joined: Feb 2019
Posts: 3,857 Likes: 2
Talk Morgan Addict
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Talk Morgan Addict
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I've edited my last post to add a bit about the barb. What was the deciding factor for the 1.5mm hole? I can see if there is a restrictor in the venturi end to keep oil from gushing into the venturi that would make sense but why restrict it going all the way up to the catch tank?
2019 M3W Sold and is now in Las Vegas enjoying the showgirls :-)
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Joined: Oct 2012
Posts: 2,822 Likes: 155
Talk Morgan Expert
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Talk Morgan Expert
Joined: Oct 2012
Posts: 2,822 Likes: 155 |
What was the deciding factor for the 1.5mm hole? I can see if there is a restrictor in the venturi end to keep oil from gushing into the venturi that would make sense but why restrict it going all the way up to the catch tank?
The sheer amount of oily air that blasts in and out of the catch tank if you don't have some restriction in the line covering everything in oil is impressive. To block the vent completely would likely cause big pressure swings in the crankcase which might/would blow out an assortment of seals. Putting a couple of restrictions in the line still allows decent venting but breaks the vent down into chambers to try and knock more of the oil out of the vented gasses before they get to the atmospheric vent filter on the top of the tank. The 1.5mm drilling was to more or less match the restrictor that S&S have in the manifold fitting.
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Joined: Jan 2020
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Just Getting Started
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Just Getting Started
Joined: Jan 2020
Posts: 66 |
" Got over a litre of oil out of the sump and it was still trickling at a noticeable rate" that's a lot you may have a pump problem , a one way case breather may help
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Joined: Feb 2019
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Talk Morgan Enthusiast
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Talk Morgan Enthusiast
Joined: Feb 2019
Posts: 1,889 Likes: 16 |
WOW!.... you are getting a liter up in the can. I wonder if there is a way to just drain it back into the oil tank
Rodger
2018 M3W "Dreamers on the Rise"
2004 Plus 8 (wife's)
old Goldwings and a couple of Harleys
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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 |
WOW!.... you are getting a liter up in the can. I wonder if there is a way to just drain it back into the oil tank I was thinking the same thing since that location is at or above the oil return line to the main oil tank. There are catch cans with an inlet and outlet and separation baffles.
Last edited by LightSpeed; 13/02/20 01:08 PM.
2019 M3W Sold and is now in Las Vegas enjoying the showgirls :-)
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Joined: Nov 2013
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Talk Morgan Enthusiast
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Talk Morgan Enthusiast
Joined: Nov 2013
Posts: 1,947 |
Calum my puncture kit lives under the steering column on a piece of grip mat. I have a Lidl fishing bag with small tools, WD40 cable ties etc sitting on grip mat where your kit sits. Do you keep the "auxiliary" car on the fuse cover fuelled up ready to get you home?
Last edited by TimG; 13/02/20 03:29 PM.
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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 |
What was the deciding factor for the 1.5mm hole? I can see if there is a restrictor in the venturi end to keep oil from gushing into the venturi that would make sense but why restrict it going all the way up to the catch tank?
The sheer amount of oily air that blasts in and out of the catch tank if you don't have some restriction in the line covering everything in oil is impressive. To block the vent completely would likely cause big pressure swings in the crankcase which might/would blow out an assortment of seals. Putting a couple of restrictions in the line still allows decent venting but breaks the vent down into chambers to try and knock more of the oil out of the vented gasses before they get to the atmospheric vent filter on the top of the tank. The 1.5mm drilling was to more or less match the restrictor that S&S have in the manifold fitting. Have you thought about venting the oil tank so pressure in it is not blowing oil into the cam chest? I am working on a couple of ideas. An item that will vent the tank AND add a tall sight glass to the tank so I don't have to use a wrench to remove the oil cap just to peer inside. ![[Linked Image]](https://www.tm-img.com/images/2020/03/07/TankDrainEnd.jpg) Put the sight glass on this end of the tank.
Last edited by LightSpeed; 07/03/20 06:09 PM.
2019 M3W Sold and is now in Las Vegas enjoying the showgirls :-)
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Joined: Oct 2016
Posts: 365
Learner Plates Off!
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Learner Plates Off!
Joined: Oct 2016
Posts: 365 |
Curious about the oil tank. What is the hose size coming off the barb on the engine?
2017 M3W Sport Green
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