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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: Feb 2018
Posts: 807 Likes: 38
Talk Morgan Regular
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Talk Morgan Regular
Joined: Feb 2018
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Do you know what the thread type/size is for the bevel box vent?
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
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No, but the next time I go to the hardware store I will take the oem vent with me to see what nut fits.
2019 M3W Sold and is now in Las Vegas enjoying the showgirls :-)
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Talk Morgan Expert
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Talk Morgan Expert
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Bruce
1964 4/4 Series V Comp (Megan)
1994 +8 (Maurice) tis no more
2013 M3W (Olga)
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Joined: Aug 2012
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Talk Morgan Expert
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Talk Morgan Expert
Joined: Aug 2012
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450 ml No more ep 140 is good
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Joined: Dec 2017
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Talk Morgan Expert
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Talk Morgan Expert
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How do you know when you have filled to correct level to allow the breather to work?
Bruce
1964 4/4 Series V Comp (Megan)
1994 +8 (Maurice) tis no more
2013 M3W (Olga)
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Joined: Feb 2019
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Talk Morgan Addict
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With that large amount of oil in the bb it is still not visible in the fill tube, therefore not even up to the oem vent level. Then the tube raises from theB to the top of the M3W so that is roughly 2 ft of breather tube with the vent cap at the end of it.
2019 M3W Sold and is now in Las Vegas enjoying the showgirls :-)
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Joined: Feb 2019
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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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Talk Morgan Expert
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Talk Morgan Expert
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Stephen, thanks. The reason I ask is I have the cooler and that takes 940ml which of course has to feed the cooler and the lines. I can see the level of oil in the BB by the feed line that gives me the level in relation to the OEM vent. In your case you go by the measured amount you are putting in i.e. 840ml. During this summer when the ambient temp was 90-100F and spirited driving on the mountain passes here at over 10,000ft the temp in the BB never went above 180.
Bruce
1964 4/4 Series V Comp (Megan)
1994 +8 (Maurice) tis no more
2013 M3W (Olga)
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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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Stephen, thanks. The reason I ask is I have the cooler and that takes 940ml which of course has to feed the cooler and the lines. I can see the level of oil in the BB by the feed line that gives me the level in relation to the OEM vent. In your case you go by the measured amount you are putting in i.e. 840ml. During this summer when the ambient temp was 90-100F and spirited driving on the mountain passes here at over 10,000ft the temp in the BB never went above 180. I see, you have the bb cooler as well as the engine cooler. I was trying to reduce complexity so was willing to try volume before the oil cooler on the bb. I called Royal Purple and they said that the temps shown on the gauge were ok and that the oil was still working.
2019 M3W Sold and is now in Las Vegas enjoying the showgirls :-)
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