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tow bar
by G Walker - 24/08/26 06:52 PM
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Jun 14th, 2026
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Joined: Feb 2019
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Talk Morgan Enthusiast
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Talk Morgan Enthusiast
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Last year my M3W started seeping oil into the sump. So if it sits more than a couple of weeks, I have about 1.5 quarts in the sump. if I start it, I end up blowing a lot of burnt oil smoke ut the mufflers....
so added to the routine... drain the d@mn sump before start up and return the oil to the tank
Rodger
2018 M3W "Dreamers on the Rise"
2004 Plus 8 (wife's)
old Goldwings and a couple of Harleys
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Has a lot to Say!
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Has a lot to Say!
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Rodger, you can always use a shutoff valve in the oil feed line, but you MUST remember to open the valve before starting. That might still be easier than draining the sump after sitting for a couple weeks.
Do like they do on airplanes, place a big red flag over your steering wheel to turn on the valve before starting. Or make something that has to be removed before you can insert the key or hit the start button.
Dan
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Talk Morgan Addict
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Talk Morgan Addict
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2019 M3W Sold and is now in Las Vegas enjoying the showgirls :-)
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Needs to Get Out More!
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Needs to Get Out More!
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I wonder if it's wear on the pressure side of oil pump that allows some to wet sump more than others?
A check valve would be the best solution but you have to be sure of its reliability. My Velocette Venom had such employing a spring loaded inverted ball valve at the bottom of oil tank, relying on suction from oil pump to open valve against light spring. Important that feed line didn't contain air though. I recall an owner retro-fitting similar from a Japanese bike when his OE valve seat became worn.
Richard
2018 Roadster 3.7
1966 Land Rover S2a 88
2024 Royal Enfield Guerrilla 450
1945 Guzzi Airone
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Just Getting Started
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Just Getting Started
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or turn the engine over with the throttle pressed so it doesn't start until the oil is back in the tank
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Joined: Apr 2021
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Just Getting Started
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Just Getting Started
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Start the engine every week....
Last edited by PaulM3W; 16/05/23 08:44 AM.
M3W 2017 Sport blue.
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Needs to Get Out More!
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Needs to Get Out More!
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or turn the engine over with the throttle pressed so it doesn't start until the oil is back in the tank Good luck with that. If you have ever pushed a bike in gear with plug out in the hope of seeing oil return to tank will know what I mean 
Richard
2018 Roadster 3.7
1966 Land Rover S2a 88
2024 Royal Enfield Guerrilla 450
1945 Guzzi Airone
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Joined: Jan 2022
Posts: 62
Just Getting Started
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Just Getting Started
Joined: Jan 2022
Posts: 62 |
or turn the engine over with the throttle pressed so it doesn't start until the oil is back in the tank Good luck with that. If you have ever pushed a bike in gear with plug out in the hope of seeing oil return to tank will know what I mean It does work I have tested it after someone else on here suggested it
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Talk Morgan Addict
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or turn the engine over with the throttle pressed so it doesn't start until the oil is back in the tank Good luck with that. If you have ever pushed a bike in gear with plug out in the hope of seeing oil return to tank will know what I mean It does work I have tested it after someone else on here suggested it How long were you cranking? I get 1 minute and roughly 20 seconds to get to almost complete replacement back into the tank. https://youtu.be/bgD9tnvhW_k
2019 M3W Sold and is now in Las Vegas enjoying the showgirls :-)
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Joined: Jan 2022
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Just Getting Started
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Just Getting Started
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I have not measured the time, maybe 2 lots of 5-10 seconds then checked and went from min dipstick to max but could have been up to max before I checked (after the first cranking burst) and at the rate in your video, the oil in the sump would possibly be scavenged back to the tank before the engine starts normally anyway, it takes a few goes if left
Last edited by RichJames; 16/05/23 02:47 PM.
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