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 Posted: Apr 3, 2017 06:15PM
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Thanks for the info! Mine is a 1967 MKII, so I can sleep easy tonight!
Jim

 Posted: Apr 3, 2017 02:01PM
 Edited:  Apr 3, 2017 02:09PM
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Looks like most twin carb set ups with a pcv i have seen. Not for sure but maybe earlier tc's had that vent connected to the rocker cover if they came without the pcv system.

EDIT: June 1964 was when the pcv system was introduced to the Cooper line up and the rocker cover breather tube was deleted. The earlier Coopers without the pcv had their rocker covers connected to the air cleaner with a hose.

If in doubt, flat out. Colin Mc Rae MBE 1968-2007.

Give a car more power and it goes faster on the straights,
make a car lighter and it's faster everywhere. Colin Chapman.

 Posted: Apr 3, 2017 11:46AM
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I thought I would try to attach a photo.

[URL=//s1255.photobucket.com/user/vr0000m1/media/Mini%20air%20box%202_zpsk8h45vav.jpg.html][/URL]

 Posted: Apr 1, 2017 03:24AM
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US
I believe the valve cover with the vent tube to match is a 12 A 1196. I have used them on 850s for Mokes with the single carb air cleaner. Works the same way. I'll look for a picture. Steve (CTR)

 Posted: Mar 30, 2017 04:26AM
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I also have the PCV arrangement. I guess I'll just ignore the "sticky out"!
Thanks!!!

 Posted: Mar 30, 2017 03:03AM
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US
Mine has the "sticky out bit" and the hole.  However, the nipple has never had anything attached to it since I have owned the car.  I do have the regular PCV setup though.  It makes no connection to the air filter housing.

Doug L.
 Posted: Mar 29, 2017 08:34PM
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Have you actually checked it has a hole all the way through.  Some have the sticky out bit but there is no connection to the inside of the air box.

Why????  Only the MOWOG knows...

Cheers, Ian

 Posted: Mar 29, 2017 02:27PM
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CA
Probably a hose connected it to the vent tube coming out of the top of the early rocker covers. Or possibly on an S, connected to a tappet cover vent. 

.

"Hang on a minute lads....I've got a great idea."

 Posted: Mar 29, 2017 02:22PM
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There is a vent on the front left of the stock twin carb air filter housing. Where should the hose connect to?
Thanks!!