Discussion
Took the car for it's annual MOT yesterday (which is always a PITA over here in Belgium).
All going well untill it starts belching blue smoke all over the place. MOT testers not amused -> fail.
I had a good look around the engine bay and it appears that the problem is the oil breather. I went on a couple of trackdays lately and the oil breather seems to have sent quite a significant amount of oil into the air intake for the front turbo. When I took the air intake hose off it was dripping with oil.
Two questions:
1) I understand from several other threads on the Noble forum that the standard oil breather on our cars is not perfect but who the f... designed a part that can blow large amounts of oil into the engine when you use the car for something more than just a spirited drive? I mean: the M400 is considered to be the track oriented version of the M12 after all.
2) the exit of the oil breather seems to blow hot and polluted air (+/- 100°C) from inside the engine directly into the air intake. Surely this cannot be a good thing?
I have ordered the upgraded oil breather from Pro Alloy. Will this solve the problem when I replace the original oil breather with the Pro Alloy version connected to the air intake?
Or should I consider running an open carter ventilation (with a separate oil catch tank) and only connecting the oil breather to the air intake when going for the MOT (open carter ventilaton = MOT fail over here)?
All going well untill it starts belching blue smoke all over the place. MOT testers not amused -> fail.
I had a good look around the engine bay and it appears that the problem is the oil breather. I went on a couple of trackdays lately and the oil breather seems to have sent quite a significant amount of oil into the air intake for the front turbo. When I took the air intake hose off it was dripping with oil.
Two questions:
1) I understand from several other threads on the Noble forum that the standard oil breather on our cars is not perfect but who the f... designed a part that can blow large amounts of oil into the engine when you use the car for something more than just a spirited drive? I mean: the M400 is considered to be the track oriented version of the M12 after all.
2) the exit of the oil breather seems to blow hot and polluted air (+/- 100°C) from inside the engine directly into the air intake. Surely this cannot be a good thing?
I have ordered the upgraded oil breather from Pro Alloy. Will this solve the problem when I replace the original oil breather with the Pro Alloy version connected to the air intake?
Or should I consider running an open carter ventilation (with a separate oil catch tank) and only connecting the oil breather to the air intake when going for the MOT (open carter ventilaton = MOT fail over here)?
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