trackday oil everywhere
#1
![Default](https://www.scoobynet.com/images/icons/icon1.gif)
gents, on sunday i went on a trackday in the 2.35 subaru. everything went well until i hit fuel cut coming out of hairpin (syvecs done its job) engine cut and i coasted down the straight and into pit. i opened bonnet straight away to find my catch can full (1ltr) after 2 laps and oil puked everywhere were its had pressure build up and its thrown it out breather on top of catch can.
My catch can setup is not a sump return yet but i have been advised i need this. the current setup is both heads running to can inlet, the drivers side head is t-piece with the crank breather to 1 port on can and the passanger side rocker is into the other.
what could cause this massive oil fill in such a short period of time?
could coasting to a stop with no ignition on and clutch not pressed down cause this?
can oil run from rockers up the lines into the tank through cornering if lines are big and not restricted?
the way it has thrown the oil out the top breather makes me think there was alot of pressure to cause this.
Will an RCM time attack attached my my RCM baffled sump other port fix this or have i another issue at play here?
The fuel cut issue i can sort easy enough.
ty
gareth
My catch can setup is not a sump return yet but i have been advised i need this. the current setup is both heads running to can inlet, the drivers side head is t-piece with the crank breather to 1 port on can and the passanger side rocker is into the other.
what could cause this massive oil fill in such a short period of time?
could coasting to a stop with no ignition on and clutch not pressed down cause this?
can oil run from rockers up the lines into the tank through cornering if lines are big and not restricted?
the way it has thrown the oil out the top breather makes me think there was alot of pressure to cause this.
Will an RCM time attack attached my my RCM baffled sump other port fix this or have i another issue at play here?
The fuel cut issue i can sort easy enough.
ty
gareth
The following users liked this post:
#7
![Default](https://www.scoobynet.com/images/icons/icon1.gif)
Originally Posted by MOTORS S GT;[url=tel:12112872
12112872[/url]]Is it the larger 16mm that is bunged in the cam cover ?, where does your main crankcase breather vent to ? have you still got the pcv valve fitted ?
Trending Topics
#11
Scooby Regular
iTrader: (2)
![Default](https://www.scoobynet.com/images/icons/icon1.gif)
Cannot see with the info given, its a problem with the breather setup, apart from getting the pcv out of the system, its a lot of oil to lose for a couple of laps, if the engine is healthy, the back to sump system will handle the situation, but won't stop the oil actually getting into the breather system.
What track did this show the issue ?
What track did this show the issue ?
#13
![Default](https://www.scoobynet.com/images/icons/icon1.gif)
Originally Posted by MOTORS S GT;[url=tel:12112897
12112897[/url]]Cannot see with the info given, its a problem with the breather setup, apart from getting the pcv out of the system, its a lot of oil to lose for a couple of laps, if the engine is healthy, the back to sump system will handle the situation, but won't stop the oil actually getting into the breather system.
What track did this show the issue ?
What track did this show the issue ?
braking hard twice from 130 to a right handed one of a very fast hairpin. I know it’s a hell of a lot of oil for a few laps
Thread
Thread Starter
Forum
Replies
Last Post