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

dipstick blowing oil ???

Thread Tools
 
Search this Thread
 
Old Mar 8, 2006 | 04:11 PM
  #1  
chillcat's Avatar
chillcat
Thread Starter
Drifting
 
Joined: Apr 2004
Posts: 1,453
Likes: 0
From: crystalriver Florida
Default dipstick blowing oil ???

QUESTIONS DOWN BELOW.....OIL BURNING AND INJECTOR NOISE

Last edited by chillcat; Mar 9, 2006 at 11:18 AM.
Reply
Old Mar 8, 2006 | 04:22 PM
  #2  
MR NICE's Avatar
MR NICE
Drifting
 
Joined: Nov 2005
Posts: 1,361
Likes: 0
From: Downriver Mi.
Default

PVC or bad rings?
Reply
Old Mar 8, 2006 | 04:27 PM
  #3  
chillcat's Avatar
chillcat
Thread Starter
Drifting
 
Joined: Apr 2004
Posts: 1,453
Likes: 0
From: crystalriver Florida
Default

pvc is brand new, actually they installed an evacuation kit on the car, runs from both valve covers to the headers. As for the rings, if your referring to the piston rings--not sure why those would affect the dipstick tube, everything is brand new in engine, just upgraded to 383 with all new seals and parts.
Reply
Old Mar 8, 2006 | 04:29 PM
  #4  
CentralCoaster's Avatar
CentralCoaster
Team Owner
 
Joined: May 2002
Posts: 24,337
Likes: 25
From: San Diego , CA Double Yellow DirtBags 1985..Z51..6-speed
Default

Its just a slip fit/ friction fit.
Reply
Old Mar 8, 2006 | 04:39 PM
  #5  
blown87's Avatar
blown87
Race Director
 
Joined: Sep 2005
Posts: 13,269
Likes: 0
From: Sharpsburg Georgia
GA Events Coordinator
Default

Originally Posted by chillcat
pvc is brand new, actually they installed an evacuation kit on the car, runs from both valve covers to the headers. As for the rings, if your referring to the piston rings--not sure why those would affect the dipstick tube, everything is brand new in engine, just upgraded to 383 with all new seals and parts.
About the only way for oil to come out the dipstick tube is blowby from poor ring seal, or something not right with your evacuation kit.

In other words some thing is putting positive pressure into the crank case.
Reply
Old Mar 8, 2006 | 04:44 PM
  #6  
MR NICE's Avatar
MR NICE
Drifting
 
Joined: Nov 2005
Posts: 1,361
Likes: 0
From: Downriver Mi.
Default

Originally Posted by blown87
About the only way for oil to come out the dipstick tube is blowby from poor ring seal, or something not right with your evacuation kit.

In other words some thing is putting positive pressure into the crank case.
Reply
Old Mar 8, 2006 | 05:10 PM
  #7  
Matt383's Avatar
Matt383
Drifting
 
Joined: Nov 2002
Posts: 1,905
Likes: 1
From: 2003 Points Champ Great Lakes Corvette Challenge; 2006/2007 Winner MSD True Street
Default

When does this happen?
At high rpm, 5000 rpm+? Drag racing?
Or just normal running?

Matt383
Reply
Old Mar 8, 2006 | 05:19 PM
  #8  
chillcat's Avatar
chillcat
Thread Starter
Drifting
 
Joined: Apr 2004
Posts: 1,453
Likes: 0
From: crystalriver Florida
Default

I don't know, the shop is still finishing up on the car, I haven't had the car yet...
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 Mar 8, 2006 | 05:25 PM
  #9  
chillcat's Avatar
chillcat
Thread Starter
Drifting
 
Joined: Apr 2004
Posts: 1,453
Likes: 0
From: crystalriver Florida
Default

Ok, I just spoke with the shop owner and he told me they checked the pressure and so far it looks like a pcv part, they believe they fixed it, but will check tomorrow and said something about blowing out the excess oil from the hoses--I guess an oil buildup. But they think they fixed it...Hopefully, thanks for the help
Reply
Old Mar 8, 2006 | 05:25 PM
  #10  
Matt383's Avatar
Matt383
Drifting
 
Joined: Nov 2002
Posts: 1,905
Likes: 1
From: 2003 Points Champ Great Lakes Corvette Challenge; 2006/2007 Winner MSD True Street
Default

Originally Posted by chillcat
I don't know, the shop is still finishing up on the car, I haven't had the car yet...
Kinda makes a difference.

Just so I understand. Oil is blowing out the dipstick tube, pushing the dipstick out and oil with it?

Matt383
Reply
Old Mar 8, 2006 | 05:29 PM
  #11  
Corvette0096's Avatar
Corvette0096
Race Director
20 Year Member
Liked
 
Joined: Aug 2000
Posts: 11,506
Likes: 4
From: Vancouver,Wa.
Default

I would do a leak down
Reply
Old Mar 8, 2006 | 05:38 PM
  #12  
chillcat's Avatar
chillcat
Thread Starter
Drifting
 
Joined: Apr 2004
Posts: 1,453
Likes: 0
From: crystalriver Florida
Default

no, it was blowing oil out the side of engine where the dipstick tube goes in, I guess too much pressure. But should be fine now, thanks
Reply
Old Mar 8, 2006 | 05:42 PM
  #13  
Matt383's Avatar
Matt383
Drifting
 
Joined: Nov 2002
Posts: 1,905
Likes: 1
From: 2003 Points Champ Great Lakes Corvette Challenge; 2006/2007 Winner MSD True Street
Default

Originally Posted by Corvette0096
I would do a leak down

I was going to go there.
I had an issue that may have been similar.
That's why I was asking some particulars.
I did pressure test, leak down test and they were all fine.
I was only blowing little oil out the dipstick at high rpm and more under spray.
My motor did not get enough vacuum from pcv, etc.
Evac is an issue with pro stock cars, big blower cars, High compression N2O Cars (like mine).
So I ended up installing a pro evac system.
Using and air pump to evac going to an oil seperator to evac/catch can which can be emptied from time to time.

well, there you have it.

Matt383
Reply
Old Mar 8, 2006 | 06:51 PM
  #14  
FD2BLK's Avatar
FD2BLK
Safety Car
20 Year Member
 
Joined: Dec 2002
Posts: 3,655
Likes: 24
From: Charleston SC
Default

Just went through this on my wifes car and it was a compleatly cloged PCV system. New PCV valve and a couple hours of cleaning the vacuum passage on the TB and it was fixed. I did the entire seafoam treatment just to be safe. BTW she has a 02 Sebring vert but exact same problem.
Reply
Old Mar 9, 2006 | 11:18 AM
  #15  
chillcat's Avatar
chillcat
Thread Starter
Drifting
 
Joined: Apr 2004
Posts: 1,453
Likes: 0
From: crystalriver Florida
Default

Heres the update, Just spoke with the shop owner and he said the car is running, they decided to take off the crankcase evac system because the car seems to run abit better without it, he said the car is still smoking but not as much as it was when I took the car to them. Course I don't know that till I pick it up in a couple hours. They DID do a leakdown and it came out clean--they said there puzzled about this and he's calling his partner to ask him his opinion before they let me drive off with it,---ALSO, he mentioned that it could "possibly" be oil residue left in the exaust pipes and its burning off, because when I drove the car before, there was black silt or some kind of fine ash coming out and getting all over the rear bumper--that stuff messes with paint. Another thing they mentioned the fuel injectors are just a little bit noisier now, not sure if its due the miniram or not, I had a superram replaced with the MR 2--could that be just a louder echo through the intake from the injectors. And does anyone have any opinions for myself to mention to those guys Before I pick it up ? thankyou
EDIT: CAR IS NOT BLOWING OIL OUT THE DIPSTICK NOW, just some out the exhaust

Last edited by chillcat; Mar 9, 2006 at 11:23 AM.
Reply
Old Mar 9, 2006 | 01:07 PM
  #16  
mseven's Avatar
mseven
Le Mans Master
 
Joined: Feb 2005
Posts: 5,146
Likes: 3
From: The Motor City
Default

I still like the idea of using some type of PCV system not just breathers if that is what you meant.
Reply
Old Mar 9, 2006 | 01:17 PM
  #17  
MR NICE's Avatar
MR NICE
Drifting
 
Joined: Nov 2005
Posts: 1,361
Likes: 0
From: Downriver Mi.
Default

Smoke out the back you prob have some bad rings
Reply

Get notified of new replies

To dipstick blowing oil ???

Old Mar 9, 2006 | 01:20 PM
  #18  
chillcat's Avatar
chillcat
Thread Starter
Drifting
 
Joined: Apr 2004
Posts: 1,453
Likes: 0
From: crystalriver Florida
Default

theyre brand new rings, chromemoly's along with new crank, pistons etc. 383 buildup
Reply
Old Mar 9, 2006 | 01:26 PM
  #19  
FD2BLK's Avatar
FD2BLK
Safety Car
20 Year Member
 
Joined: Dec 2002
Posts: 3,655
Likes: 24
From: Charleston SC
Default

Depending on how the cyl were honed te CM rings can take a while to seat properly. I would definatly hook the PCV system back up it does nothing but help the motor. If it is cloged or not working correctly then fix it don't scrap it. Again it took me all of three hours, including trouble shooting to fix the problem with my wifes car.
Reply
Old Mar 9, 2006 | 06:17 PM
  #20  
chillcat's Avatar
chillcat
Thread Starter
Drifting
 
Joined: Apr 2004
Posts: 1,453
Likes: 0
From: crystalriver Florida
Default

I was incorrect, they didn't remove the pcv system, they left the driverside still ventilated to the header collector area, but capped off the passengerside, But I have an oil leak somewhere under the car and I'm taking the car back to them tomorrow...
Reply



All times are GMT -4. The time now is 08:15 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