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Aug 24th, 2023
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Joined: Feb 2018
Posts: 759 Likes: 23
Talk Morgan Regular
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Talk Morgan Regular
Joined: Feb 2018
Posts: 759 Likes: 23 |
I can't imagine a weeping seal, or even a really leaking one increasing oil temp.
With only 500 miles on the car the weep could be caused by combustion blow-by as the rings may not be fully run in yet. The orifice in the intake where the vent hose from the crankcase attaches is only .1" according to the S&S manual, so the vacuum 'seen' by the crankcase is limited, and excessive blow-by could exceed the negative pressure provided by the crankcase vent and seek an alternative path out of the engine.
I would keep the area clean and check it every few hundred miles, and likely it will diminish as the miles build. If it's getting worse by about 2k miles, then I'd take it up with the dealer or MMC.
Steve
Late 2012 M3W
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Joined: Feb 2019
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Talk Morgan Addict
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Talk Morgan Addict
Joined: Feb 2019
Posts: 3,854 Likes: 2 |
I can't imagine a weeping seal, or even a really leaking one increasing oil temp.
With only 500 miles on the car the weep could be caused by combustion blow-by as the rings may not be fully run in yet. The orifice in the intake where the vent hose from the crankcase attaches is only .1" according to the S&S manual, so the vacuum 'seen' by the crankcase is limited, and excessive blow-by could exceed the negative pressure provided by the crankcase vent and seek an alternative path out of the engine.
I would keep the area clean and check it every few hundred miles, and likely it will diminish as the miles build. If it's getting worse by about 2k miles, then I'd take it up with the dealer or MMC.
I hope you are correct. I will clean it thoroughly before the next long (150 mile) drive.
The light at the end of the tunnel is actually a train. 2019 M3W
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Joined: Oct 2016
Posts: 1,544
Talk Morgan Enthusiast
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Talk Morgan Enthusiast
Joined: Oct 2016
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mine has weeped since day one!! 3 new seal's fitted still weeps after 10,000miles just clean it off every service....
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Joined: Feb 2019
Posts: 3,854 Likes: 2
Talk Morgan Addict
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Talk Morgan Addict
Joined: Feb 2019
Posts: 3,854 Likes: 2 |
mine has weeped since day one!! 3 new seal's fitted still weeps after 10,000miles just clean it off every service.... WOW! How many cam drive belts have you changed?
The light at the end of the tunnel is actually a train. 2019 M3W
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Joined: Oct 2016
Posts: 1,544
Talk Morgan Enthusiast
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Talk Morgan Enthusiast
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Oil only a small weep doesn’t go on the belt ! Makes the back plate slightly oily.
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Joined: Nov 2013
Posts: 1,944
Talk Morgan Enthusiast
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Talk Morgan Enthusiast
Joined: Nov 2013
Posts: 1,944 |
Mine weeped for a time with drips on the floor but seemed to fix itself.
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Joined: May 2012
Posts: 1,790 Likes: 3
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Talk Morgan Enthusiast
Joined: May 2012
Posts: 1,790 Likes: 3 |
Mine has been bone dry from day 1, but since having the cams replaced and a new timing belt it has starred to weep. Not by much but enough to leave an oily film on the garage floor and under the engine.
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Joined: May 2019
Posts: 589
Talk Morgan Regular
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Talk Morgan Regular
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Posts: 589 |
Could this be related to wet-sumping when the vehicle is standing for long periods?
M3W Brooklands (2015)
Moody 41 (2013)
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Joined: Feb 2019
Posts: 3,854 Likes: 2
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Talk Morgan Addict
Joined: Feb 2019
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Mine start weeping immediately when I drive it. Wipe the underside of the vehicle clean and before 10 miles is reached it has oil on it and will drop oil within 5 minutes of exiting the vehicle.
The light at the end of the tunnel is actually a train. 2019 M3W
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Joined: Feb 2018
Posts: 759 Likes: 23
Talk Morgan Regular
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Talk Morgan Regular
Joined: Feb 2018
Posts: 759 Likes: 23 |
Could this be related to wet-sumping when the vehicle is standing for long periods? That's an interesting thought, IMHO, and could very well be. The X-wedge moves a lot of air internally as those huge pistons move up and down, and if the sump had a bunch of oil in it the available air volume could be reduced sufficiently to raise crankcase pressure during the few seconds it takes for the scavenge pump to clear the sump.
Steve
Late 2012 M3W
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