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3dr Cosworth breather

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Old Aug 14, 2020 | 08:48 AM
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Default 3dr Cosworth breather

I need to sort out a breather for my 3dr - what's the best these days?
Both sides of the block? Would rather not drill the cam cover.
I saw this fitting kit on Burton's page. Does the bit on the left replace the plug underneath the exhaust manifold?



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Old Aug 14, 2020 | 01:52 PM
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Go on eBay. Search "cosworth block breather"
adapters for both sides of the block will come up.
I use the 16mm adapter on the right side up to bailey separator tank with a re-drain to left side of block. Been fine for road use.
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Old Aug 14, 2020 | 06:03 PM
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Thanks Mat. Just put the car on the road after 12 years and a tidy up, trying to figure out what bits I need for the breather.
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Old Sep 28, 2020 | 10:34 PM
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During a shot on a tablet with Bernard's analysis, we can see his ID number. And it's the same number on the tablet shown to Charlotte by her assistant, when they are speaking about aquisition of Delos by Serac







snaptube vidmate word to pdf

Last edited by adamlien; Sep 29, 2020 at 12:20 PM.
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Old Sep 29, 2020 | 08:15 AM
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Originally Posted by adamlien
During a shot on a tablet with Bernard's analysis, we can see his ID number. And it's the same number on the tablet shown to Charlotte by her assistant, when they are speaking about aquisition of Delos by Serac
I guess you are new to this forum. The thread is about 3 door breather systems so not sure if you have got confused where to put your post.?
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Old Sep 29, 2020 | 01:45 PM
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The burton kit shown is a little upgrade to the std block and cam cover fitting scenario, in that is has an adaptor to return the oil on the exhaust side to below the oil fill line so it isn’t blown back up into the breather.

best way is to breath from both sides of the block, use the ally piece for the cam cover to make block adaptor the right pipe size, I araldited mine as a sleeve over it.
them you need to find approrpriate fitting to have oil return going back into the sump, can be to sump plug location.

there are loads of historical threads on this if you search back a few years.
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