94WRX Oiling Up
18 April 2002, 07:04 PM
#1
Scooby Newbie
Thread Starter
Join Date: Apr 2002
Posts: 28
Likes: 0
Received 0 Likes
on
0 Posts
I have a 94WRX which is pretty standard and has been hereto excellent.
Recently it has been leaking oil out of the two 'breather' pipes which run from the top of the rocker covers back into the inlet manifold. I have a Haynes manual for Legacy's from which I think these pipes are the Positive Crankcase Ventilation tubes.
Can anyone tell me why they have suddenly started 'oiling up' lke this and what I can do to fix it?
One theory I have is that it could be the crankshaft seals, is this likely? Has anybody seen this before?
Recently it has been leaking oil out of the two 'breather' pipes which run from the top of the rocker covers back into the inlet manifold. I have a Haynes manual for Legacy's from which I think these pipes are the Positive Crankcase Ventilation tubes.
Can anyone tell me why they have suddenly started 'oiling up' lke this and what I can do to fix it?
One theory I have is that it could be the crankshaft seals, is this likely? Has anybody seen this before?
19 April 2002, 12:18 AM
#2
Scooby Regular
Join Date: May 1999
Location: SSO2003 2nd, SSO2005 1st, SSO2006 2nd, TACC Rd4 5th 4wd: In my car ;-)
Posts: 2,637
Likes: 0
Received 0 Likes
on
0 Posts
It won't be related to the crank seals. These are at the front, and back of the engine, and would just show up as leaks.
Excessive oil in the vents is normally caused by running very high boost, and or worn rings.
The type of oil you use can make a big difference too.
It would be worth doing a cylinder pressure test, and if this holds up, fitting an oil catch tank.
On the other hand, since I'm sure one of my suggetions will be right, I'll sort it out once I've collected my "free car"
Mark.
Excessive oil in the vents is normally caused by running very high boost, and or worn rings.
The type of oil you use can make a big difference too.
It would be worth doing a cylinder pressure test, and if this holds up, fitting an oil catch tank.
On the other hand, since I'm sure one of my suggetions will be right, I'll sort it out once I've collected my "free car"
Mark.
19 April 2002, 12:59 PM
#3
Scooby Regular
Join Date: Nov 2001
Location: Leeds - It was 562.4bhp@28psi on Optimax, How much closer to 600 with race fuel and a bigger turbo?
Posts: 15,239
Likes: 0
Received 1 Like
on
1 Post
lol 
at other thread..
Id say same as above.. honest.. no I was going to say possibly the rings and do a compression test... Possibly too much oil in the engine...?? or maybe a blocked oilway / pipe somewhere??
Has it been serviced recently? How many miles?
David
at other thread..Id say same as above.. honest.. no I was going to say possibly the rings and do a compression test... Possibly too much oil in the engine...?? or maybe a blocked oilway / pipe somewhere??
Has it been serviced recently? How many miles?
David
19 April 2002, 05:27 PM
#5
Scooby Newbie
Thread Starter
Join Date: Apr 2002
Posts: 28
Likes: 0
Received 0 Likes
on
0 Posts
davecoombs - have you solved your one?
The left hand one is definitely the worse of the two.
Car has done 119,00km - oil change fairly recently (<1000km)
Any ideas which oil-way could be blocked?
The left hand one is definitely the worse of the two.
Car has done 119,00km - oil change fairly recently (<1000km)
Any ideas which oil-way could be blocked?
22 April 2002, 09:31 PM
#6
Scooby Newbie
Thread Starter
Join Date: Apr 2002
Posts: 28
Likes: 0
Received 0 Likes
on
0 Posts
Just to close out this issue - I removed the breather covers from the top of the rocker covers and resealed with liquid gasket and also applied some liquid gasket to a couple of rocker-cover bolts which appeared to be leaking.
The real problem however was the fact that I had used a sub-standard oil which was boiling up and 'getting everywhere' I purged the bloody stuff out of the engine and replaced with a sound fill of Mobil 1. Problem solved!
Thanks for your replies everyone, this forum is fantastic and a real testement to 'hands-on' practical vs internet communication!!
The real problem however was the fact that I had used a sub-standard oil which was boiling up and 'getting everywhere' I purged the bloody stuff out of the engine and replaced with a sound fill of Mobil 1. Problem solved!
Thanks for your replies everyone, this forum is fantastic and a real testement to 'hands-on' practical vs internet communication!!
Thread
Thread Starter
Forum
Replies
Last Post