C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

oil leaking

Thread Tools
 
Search this Thread
 
Old Aug 15, 2011 | 09:54 AM
  #1  
ndanl's Avatar
ndanl
Thread Starter
Instructor
 
Joined: Jul 2009
Posts: 223
Likes: 0
From: Timisoara, Romania
Default oil leaking

hello,

is it possible to leak oil from the distributor where it connects to the engine?

I have an oil leaking problem in the area where the oil presure sensor is and I cant figure out from where, the sensor is new and is not leaking ...
Reply
Old Aug 15, 2011 | 10:08 AM
  #2  
oldalaskaman's Avatar
oldalaskaman
Le Mans Master
10 Year Member
 
Joined: Aug 2010
Posts: 9,272
Likes: 17
Default

yes it is
Reply
Old Aug 15, 2011 | 10:23 AM
  #3  
383vett's Avatar
383vett
Race Director
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2003
Posts: 17,700
Likes: 1,667
From: moraga ca
Default

There is a gasket between the distributor and the manifold. If torn or missing, that can cause a leak. More likely it is the area between the rear of the intake and the block that is leaking.
Reply
Old Aug 15, 2011 | 10:57 AM
  #4  
ndanl's Avatar
ndanl
Thread Starter
Instructor
 
Joined: Jul 2009
Posts: 223
Likes: 0
From: Timisoara, Romania
Default

can you guys tell me which one is it from the corvettecentral.com or rockauto.com ?
they ship overseas

the car is 1991 corvette L98

383vett, yes in the rear of the intake area and I think that the gasket between the intake and the distributor is the only place that could leak from ... or do you have any other suggestions what else to check ? ?

thank you
Reply
Old Aug 15, 2011 | 12:15 PM
  #5  
Deepa's Avatar
Deepa
Burning Brakes
10 Year Member
 
Joined: Mar 2010
Posts: 1,094
Likes: 68
From: Providence RI
Default

there is a rtv'd area which seals the front and rear of the intake manifold to the block. this is probably where your leak is coming from.
Reply
Old Aug 15, 2011 | 12:26 PM
  #6  
Ray Quayle's Avatar
Ray Quayle
- 1986 Original Owner -
Supporting Lifetime Gold
Veteran: Navy
25 Year Member
Liked
Community Favorite
 
Joined: Apr 1999
Posts: 3,193
Likes: 139
From: North Yorkshire, England
Cruise-In I Veteran
Cruise-In II Veteran
Cruise-In III Veteran
Cruise-In IV Veteran
Cruise-In VII Veteran
Default

Originally Posted by ndanl
can you guys tell me which one is it from the corvettecentral.com or rockauto.com ?
they ship overseas

the car is 1991 corvette L98

383vett, yes in the rear of the intake area and I think that the gasket between the intake and the distributor is the only place that could leak from ... or do you have any other suggestions what else to check ? ?

thank you
He means where the intake and the block meet at the rear. Most likely leak location. If you need the distributor gasket though, PM me an address and I'll post you one.
Reply
Old Aug 17, 2011 | 05:04 AM
  #7  
Ray Quayle's Avatar
Ray Quayle
- 1986 Original Owner -
Supporting Lifetime Gold
Veteran: Navy
25 Year Member
Liked
Community Favorite
 
Joined: Apr 1999
Posts: 3,193
Likes: 139
From: North Yorkshire, England
Cruise-In I Veteran
Cruise-In II Veteran
Cruise-In III Veteran
Cruise-In IV Veteran
Cruise-In VII Veteran
Default

OK Dan, The gasket is on its way. Should be with you in a few days. I just stuck it in an envelope. Probably not your leak, but you'll be able to rule it out. Best of luck.
Reply
Old Aug 17, 2011 | 05:16 AM
  #8  
mistaben's Avatar
mistaben
Burning Brakes
 
Joined: Aug 2003
Posts: 944
Likes: 0
From: Mesa Az
Default

Originally Posted by ndanl
hello,

is it possible to leak oil from the distributor where it connects to the engine?
yes it is, but not likely. even if you didn't have a gasket there....

well at least on L98 series engines, if you didn't have a gasket there it would be not likely to cause an oil leak, though it wouldn't exactly be smart not too...
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-7

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-8

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-9

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
Old Aug 17, 2011 | 05:36 AM
  #9  
ndanl's Avatar
ndanl
Thread Starter
Instructor
 
Joined: Jul 2009
Posts: 223
Likes: 0
From: Timisoara, Romania
Default

well if it steel leaks, can you advice which gasket is the one from between the intake and block ? ?
Reply
Old Aug 17, 2011 | 06:06 AM
  #10  
Ray Quayle's Avatar
Ray Quayle
- 1986 Original Owner -
Supporting Lifetime Gold
Veteran: Navy
25 Year Member
Liked
Community Favorite
 
Joined: Apr 1999
Posts: 3,193
Likes: 139
From: North Yorkshire, England
Cruise-In I Veteran
Cruise-In II Veteran
Cruise-In III Veteran
Cruise-In IV Veteran
Cruise-In VII Veteran
Default

Originally Posted by ndanl
well if it steel leaks, can you advice which gasket is the one from between the intake and block ? ?
Dan, I'm sorry I don't have a picture of the rear. I'll try to find one, but for now you can get a good idea of what we are talking about by looking at the front:

The horizontal line where the silver meets the black (intake meets the block) will have a seal. Should be RTV. The rear is the similar and where leaks usually start.
Reply
Old Aug 17, 2011 | 07:34 AM
  #11  
ndanl's Avatar
ndanl
Thread Starter
Instructor
 
Joined: Jul 2009
Posts: 223
Likes: 0
From: Timisoara, Romania
Default

oook, so the seal should be RTV ? there is no special gasket or something ?
Reply
Old Aug 17, 2011 | 09:14 AM
  #12  
Muffin's Avatar
Muffin
Race Director
Supporting Lifetime Gold
10 Year Member
 
Joined: Jun 1999
Posts: 14,924
Likes: 9
From: Merritt Ils Fl
Default

Originally Posted by ndanl
oook, so the seal should be RTV ? there is no special gasket or something ?
A rubber gasket, rather large thing actually, was used for years. Now all L98 builds use a large, 1/4 inch, bead of RTV or similar sealer.
Reply

Get notified of new replies

To oil leaking





All times are GMT -4. The time now is 01:12 AM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE