Tech / General Engine Is your car making a strange sound or won't start? Thinking of adding power with a new combination? Need other technical information or engine specific advice? Don't see another board for your problem? Post it here!

PCV/Breather Question - Oil Leak?

Thread Tools
 
Search this Thread
 
Old 06-11-2012, 01:01 AM
  #1  
Senior Member

Thread Starter
iTrader: (12)
 
irishhockey34's Avatar
 
Join Date: Jun 2006
Location: Plymouth Twp. PA
Posts: 525
Received 6 Likes on 6 Posts
Car: 92RS
Engine: LQ4
Transmission: 4L80E
Axle/Gears: 3.23
PCV/Breather Question - Oil Leak?

Heres the deal. I have a fresh 350 vortec that I just put in my 92 RS. Everything runs great except I have a small oil leak out of the front of the oil pan gasket only after the car is warmed up and running. I believe I am having a crankcase ventilation issue and excessive pressure is building up and pushing oil out of my oil pan gasket?

I am running two breathers, one on each valve cover. Should I try a PCV system? The breathers are old and seem to be filled with oil.

Suggestions?
Old 06-13-2012, 11:42 AM
  #2  
Senior Member

Thread Starter
iTrader: (12)
 
irishhockey34's Avatar
 
Join Date: Jun 2006
Location: Plymouth Twp. PA
Posts: 525
Received 6 Likes on 6 Posts
Car: 92RS
Engine: LQ4
Transmission: 4L80E
Axle/Gears: 3.23
Re: PCV/Breather Question - Oil Leak?

Update*

Put a PCV system back on the car and the oil leak as subsided. I guess I was right, crankcase gas pressures were building, pushing oil out of the oil pan gasket.
Old 06-13-2012, 01:24 PM
  #3  
Member

 
sorch60's Avatar
 
Join Date: Jul 2001
Location: Green Brook, NJ
Posts: 107
Likes: 0
Received 0 Likes on 0 Posts
Re: PCV/Breather Question - Oil Leak?

That's interesting. I'm getting a similar leak and i know my line from the carb to the PCV is not making a good seal, I'll have to replace it and see if I get any improvement.
Old 06-13-2012, 01:48 PM
  #4  
Senior Member

Thread Starter
iTrader: (12)
 
irishhockey34's Avatar
 
Join Date: Jun 2006
Location: Plymouth Twp. PA
Posts: 525
Received 6 Likes on 6 Posts
Car: 92RS
Engine: LQ4
Transmission: 4L80E
Axle/Gears: 3.23
Re: PCV/Breather Question - Oil Leak?

Originally Posted by sorch60
That's interesting. I'm getting a similar leak and i know my line from the carb to the PCV is not making a good seal, I'll have to replace it and see if I get any improvement.
Definitely worth a shot. That short piece of 3/8" hose is cheap. Plus that means you have a vacuum leak.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Exxon Limited
Camaros Wanted
22
12-21-2015 10:36 PM
Navy8125
Engine/Drivetrain/Suspension Parts for Sale
4
08-21-2015 09:32 AM
redmaroz
LTX and LSX
7
08-16-2015 11:40 PM
bamaboy0323
Tech / General Engine
2
08-15-2015 07:20 AM
drathaar907
TPI
0
08-06-2015 04:20 PM



Quick Reply: PCV/Breather Question - Oil Leak?



All times are GMT -5. The time now is 03:37 AM.