oil leak
03-26-2003, 01:09 AM
#1
Registered User
Thread Starter
Join Date: Mar 2001
Location: San Francisco CA. USA
Posts: 111
oil leak
I have a bunch of oil leaking from somewhere on my freshly rebuilt 95 LT1
I'm looking everywhere but it seems to be comming from the rear upper area. I can't tell for sure unless I pull the transmission. Can't be my rear main seal can it? Any sugestions?
I'm looking everywhere but it seems to be comming from the rear upper area. I can't tell for sure unless I pull the transmission. Can't be my rear main seal can it? Any sugestions?
03-26-2003, 09:14 AM
#4
Registered User
Join Date: Apr 2001
Location: Toronto, Ontario, Canada
Posts: 369
Originally posted by EviLBoX
It may be your intake manifold leaking. Reach behind it on the passenger side and feel around the seal for oil.
It may be your intake manifold leaking. Reach behind it on the passenger side and feel around the seal for oil.
What is common is that people seal this with RTV, and don't let it cure for 24 hours and the seal get broken. It generally happens in the rear, not the front, when this is done.
Easy fix.
03-26-2003, 09:17 AM
#5
Registered User
Join Date: Mar 2003
Location: Fort Smith, AR
Posts: 594
My intake oil leak started out small, and progressively got worse. My undercarriage was also covered with oil. I repaired it a month ago and that fixed my problem. I used AC Delco gaskets and Permatex Ultra Copper for the fix. Here's some links for "how to" if you need em:
http://www.bfranker.badz28.com/fbody/intakefix.htm
http://www.projecttransam.com/projects2.asp
http://www.geocities.com/MotorCity/Downs/4013/ol.html
http://www.bfranker.badz28.com/fbody/intakefix.htm
http://www.projecttransam.com/projects2.asp
http://www.geocities.com/MotorCity/Downs/4013/ol.html
03-26-2003, 10:17 AM
#6
Registered User
Join Date: Apr 2001
Location: Canada
Posts: 251
Originally posted by DR.ZED
You can feel where the parting line is between intake and block. The EGR and oil-pressure sensor are right there as well.
What is common is that people seal this with RTV, and don't let it cure for 24 hours and the seal get broken. It generally happens in the rear, not the front, when this is done.
Easy fix.
You can feel where the parting line is between intake and block. The EGR and oil-pressure sensor are right there as well.
What is common is that people seal this with RTV, and don't let it cure for 24 hours and the seal get broken. It generally happens in the rear, not the front, when this is done.
Easy fix.
03-26-2003, 10:30 AM
#7
Registered User
Join Date: Mar 2003
Location: Fort Smith, AR
Posts: 594
So, are you saying it can be fixed without actually taking the manifold off. Just simply reach back and seal with RTV?
03-26-2003, 11:53 AM
#8
Registered User
Join Date: Apr 2001
Location: Toronto, Ontario, Canada
Posts: 369
Originally posted by 93zder
So, are you saying it can be fixed without actually taking the manifold off. Just simply reach back and seal with RTV?
So, are you saying it can be fixed without actually taking the manifold off. Just simply reach back and seal with RTV?
I meant that a lot of repair trades people send these LT1s out, without letting the RTV cure properly. 24 hours is a timeframe many people use before the car can even be started.
03-26-2003, 12:10 PM
#9
Registered User
Join Date: Apr 2001
Location: Canada
Posts: 251
I thought that would have been too easy to be true. Does anyone know the cost of this repair? I think i may have this problem, since i have noticed some small drip marks on my garage floor which seems to be coming from around the tranny and back of engine area. 
03-26-2003, 02:14 PM
#11
Registered User
Join Date: Apr 2001
Location: Canada
Posts: 251
Originally posted by DR.ZED
Whoever did it should do it again.
Otherwise its about a 2 hours job. Plus 24 hours that is.
Whoever did it should do it again.
Otherwise its about a 2 hours job. Plus 24 hours that is.
03-26-2003, 02:23 PM
#12
Registered User
Join Date: Apr 2002
Location: Lincoln, NE, USA
Posts: 480
Originally posted by 93zder
It's never been done before, this would be the first. Would i be losing performance?
It's never been done before, this would be the first. Would i be losing performance?
03-26-2003, 02:29 PM
#13
Registered User
Join Date: Apr 2001
Location: Canada
Posts: 251
Originally posted by DubbyZ28Camaro
No, I don't think you would be losing performance, but I have heard of people letting their car leak and eventually burning up the clutch (which I saw you had a manual tranny). Just a thought.
No, I don't think you would be losing performance, but I have heard of people letting their car leak and eventually burning up the clutch (which I saw you had a manual tranny). Just a thought.
03-26-2003, 02:30 PM
#14
Registered User
Join Date: Mar 2003
Location: Fort Smith, AR
Posts: 594
If you just had your engine rebuilt, then whoever did the rebuild did a poor job in making sure he sealed the back of the intake manifold. I think that's what DR.ZED meant by "whoever did it should do it again."
