engine breathers
Turbo Mini Forums

Should the 2 engine oil breathers be free to air or should they have a filter or even a 1 way valve fitted.

I was reading somewhere that the turbo engine from the metty had a 1 way valve setup.

Does this need to be done in the mini or can they just breath to air ??

Cheers Rob

Just vent them to air, using the small K+N or Pipercross type breathers. This is better that routing it back into the inlet side.

Phil.

WWW.TURBO-MINI.COM

what were the one way valves used for phil? my mate connected up his breathers wrong and it started to push out the oil seals in the turbo causing it to smoke. what was the purpose of the valve if you can just went them to air

cheers

A-series power! 1972|1310|T3 turbo|Omega pistons|Cantre main strap|Orange clutch diaphragm|AP race plate|Comp pressure plate|Lightened steel flywheel|13-row oil cooler|Vernier duplex timing gear|Phase 2 Piper cam|Green air filter|Hi boost carb needle/spring|2"Stainless exhaust|3"Play mini stainless rear box|Jack Knight s/c 4spd gearbox|Jack Knight s/c drop gears|Silicon coolant hoses|Lumenition HT leads|GAZ lowered height shocks all round|Steel flip-front|Rear safety devices cage|Group 5 arches|6x12 deep dish Minilites|Surf blue/Old english white|

As a production car it would be unacceptable to have the breathers venting to air, as the fumes are supposed to be routed back into the inlet side, to be burnt up in the engine.
I guess the one way valve is to stop pressure going back down the breathers and into the engine when the inlet is seeing boost.
Using the aftermarket breathers and venting the fumes to air will mean non of the oil vapour is going back into the inlet charge, which is better for performance.

Cheers
Phil.

WWW.TURBO-MINI.COM

cheers! i will be venting mine to air then lol easier then routing the pipes all over the place, and unless they are silicone hoses i hate the look of the standard black ones.

A-series power! 1972|1310|T3 turbo|Omega pistons|Cantre main strap|Orange clutch diaphragm|AP race plate|Comp pressure plate|Lightened steel flywheel|13-row oil cooler|Vernier duplex timing gear|Phase 2 Piper cam|Green air filter|Hi boost carb needle/spring|2"Stainless exhaust|3"Play mini stainless rear box|Jack Knight s/c 4spd gearbox|Jack Knight s/c drop gears|Silicon coolant hoses|Lumenition HT leads|GAZ lowered height shocks all round|Steel flip-front|Rear safety devices cage|Group 5 arches|6x12 deep dish Minilites|Surf blue/Old english white|

is this worth doing to anything other than a turbo engine e.g 1975 block?
cheers

it's worth doing to any engine

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