LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

%&!*@ Oil Leak!

Thread Tools
 
Search this Thread
 
Old 08-13-2007, 01:38 PM
  #1  
Registered User
Thread Starter
 
scottso's Avatar
 
Join Date: Jan 2003
Location: New Jersey
Posts: 290
%&!*@ Oil Leak!

I've cleaned, inspected, recleaned and checked again. Everything I see says the leak is from the crank position sensor. I replaced the "O" ring - still leaks. I put a bead of "The Right Stuff" on it and reinstalled it - still leaks.

There always seems to be a drop of oil hanging from the AIR plumbing the loops under the timing cover - and sometimes a drop hanging from the bolt securing the sensor. Doesn't seem to be any on the front of the oil pan.

Does the bolt that secures the sensor pierce the cover? Could I need thread sealant? Has anyone else fought with this thing?
scottso is offline  
Old 08-13-2007, 01:53 PM
  #2  
Registered User
 
1SlowFormula's Avatar
 
Join Date: Nov 2003
Location: West Linn, OR
Posts: 1,752
Does it actually leak enough to drip off? Mine has had the same as what your explaining for a long time where an oil droplet is almost always there just about ready to drip but I have never found a drop on the ground under the car...
1SlowFormula is offline  
Old 08-13-2007, 02:07 PM
  #3  
Registered User
Thread Starter
 
scottso's Avatar
 
Join Date: Jan 2003
Location: New Jersey
Posts: 290
Yea - it drips, not much - but it does. I think I actually slowed it down a bit doing what I mentioned.

BTW - Opti seal and WP seal are new. Balancer seal is not - but I have done the "finger test" multiple times and I don't come up with oil on my fingers under it.
scottso is offline  
Old 08-13-2007, 07:46 PM
  #4  
Registered User
 
KPZ-28's Avatar
 
Join Date: Aug 2004
Location: Mason City, IA
Posts: 115
I have the same annoying drip off the crank position sensor bolt. My timing cover seals are new and dry and the front of my intake is also dry. I also replaced the cps o-ring with no luck so the only thing left is maybe the seal between the timing cover and oil pan? It doesn't seem possible that oil could jump over to the cps bolt from the oil pan though.
KPZ-28 is offline  
Old 08-14-2007, 08:12 AM
  #5  
Registered User
Thread Starter
 
scottso's Avatar
 
Join Date: Jan 2003
Location: New Jersey
Posts: 290
Originally Posted by KPZ-28
It doesn't seem possible that oil could jump over to the cps bolt from the oil pan though.
Especially considering the forward motion of the car - everything wants to blow back.

Have you considered what I put in the first post? Do you have any idea if the bolt goes clean through the cover? Perhaps its weeping through the threads, I might try some thread sealant on it.
scottso is offline  
Old 08-14-2007, 10:23 AM
  #6  
Registered User
 
raroz28's Avatar
 
Join Date: Feb 2005
Location: Metro Detroit, MI
Posts: 1,326
I have the same oil in the same spot. It is the front of the oil pan leaking. Replace your oil pan seal since you've done everything else already.

I damaged my seal pulling the timing cover (it was so adhered to the cover I couldn't get it off smoothly). It looks like it's coming from the CPS but, for me, its my pan seal. Could be yours as well.
raroz28 is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Magenta_Hearts
LT1 Based Engine Tech
15
03-29-2017 08:54 PM
surreybrad
General 1967-2002 F-Body Tech
10
04-22-2015 06:40 AM
BigWil
LT1 Based Engine Tech
12
03-29-2015 12:24 PM
artic94
LT1 Based Engine Tech
15
01-17-2015 11:19 AM



Quick Reply: %&!*@ Oil Leak!



All times are GMT -5. The time now is 11:13 PM.