C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

Removed PCV Valve (Lesson Learned)

Thread Tools
 
Search this Thread
 
Old Aug 1, 2004 | 11:27 PM
  #1  
80TexasC3's Avatar
80TexasC3
Thread Starter
"Rodstoration &am p;quot; In Progres
Supporting Lifetime Gold
 
Joined: Jun 2004
Posts: 1,397
Likes: 1
From: Frisco TX
Default Removed PCV Valve (Lesson Learned)

While I was aggressively removing all of the smog equipment I could on my 1980 I removed and plugged the PCV. The first issue I ran into was that oil began pushing up through my breather. So, I called Edelbrock and installed a baffle. This caused a big issue... The gromet (unknowingly) pressed against the baffle which effectively sealed the engine. As pressure built, oil seeped (no, it streamed) from the valve cover gaskets and directly onto my headers.

After looking like James Bond 007 going down the road...I spent this morning reinstalling my PCV and correcting the breather gromet issue. Now all is better...

Bottom line... If you have a PCV on your engine... leave it alone. Chances are that you will not get any additional hp from taking it off anyway.
Reply
Old Aug 1, 2004 | 11:44 PM
  #2  
SCS Red80's Avatar
SCS Red80
Racer
15 Year Member
 
Joined: Jan 2003
Posts: 428
Likes: 0
From: Eagle River AK
St. Jude Donor '10, '13
Default

Do you remember what the differences in oil presure are i.e. before and after you took the PCV valve off and on? Thanks
Reply
Old Aug 2, 2004 | 12:27 AM
  #3  
billlambeer's Avatar
billlambeer
Instructor
 
Joined: Jun 2004
Posts: 190
Likes: 0
From: Avon CO
Default

sorry..PCV valve where? hahaha just dont want to mess it up on my car..lol
Reply
Old Aug 2, 2004 | 12:35 AM
  #4  
killervette666's Avatar
killervette666
Drifting
10 Year Member
 
Joined: Nov 2003
Posts: 1,410
Likes: 0
From: chicago IL
Default

I took off my pcv valve and replaced it with push in type breathers and have had no problems so far.
Reply
Old Aug 2, 2004 | 08:59 AM
  #5  
Avette4me's Avatar
Avette4me
Le Mans Master
15 Year Member
 
Joined: Jan 2003
Posts: 6,575
Likes: 1
From: Tuttle OK
Cruise-In VIII Veteran
Default

Originally Posted by killervette666
I took off my pcv valve and replaced it with push in type breathers and have had no problems so far.
That works! ...I don't put any of that into my carb, keep it clean and keep the valve covers breathing...
Reply
Old Aug 5, 2004 | 03:02 AM
  #6  
EVIL_GRIM's Avatar
EVIL_GRIM
Racer
 
Joined: Jul 2004
Posts: 400
Likes: 1
From: California
Default

Originally Posted by SCS Red80
Do you remember what the differences in oil presure are i.e. before and after you took the PCV valve off and on? Thanks
my pressure was something like 40 whenit was off and now with the vaccum hooked back up its like 55 almost 60 at high Rpms. really good for this small beast of an engine (190hp for the cali cars)
Reply
Old Aug 5, 2004 | 07:17 AM
  #7  
Big Fish's Avatar
Big Fish
Safety Car
Supporting Member
10 Year Member
 
Joined: Jul 2002
Posts: 4,269
Likes: 3
From: St. Charles IL
Cruise-In 5-6-7-8-9-11-12 Veteran
A CI-6 Car Show Winner
Default

Originally Posted by Avette4me
That works! ...I don't put any of that into my carb, keep it clean and keep the valve covers breathing...
But if you are not running a PCV valve, you are not keeping it clean because it's staying in the engine
Reply
Old Aug 5, 2004 | 07:46 PM
  #8  
glen242's Avatar
glen242
Melting Slicks
15 Year Member
 
Joined: Apr 1999
Posts: 2,010
Likes: 3
From: Moon Twp. PA USA
Default

Originally Posted by Avette4me
That works! ...I don't put any of that into my carb, keep it clean and keep the valve covers breathing...
But the PCV vapor goes into the carb below the throttle plates. No chance to screw up the carb.

IMO, you have to use a PCV valve/set up on a street engine. If not, rig up an old style draft tube, which only worked when the car was moving.
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 5, 2004 | 08:30 PM
  #9  
shoptek's Avatar
shoptek
Melting Slicks
25 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Aug 1999
Posts: 3,123
Likes: 13
From: Hollywood, Florida
Default

Originally Posted by glen242
But the PCV vapor goes into the carb below the throttle plates. No chance to screw up the carb.

IMO, you have to use a PCV valve/set up on a street engine. If not, rig up an old style draft tube, which only worked when the car was moving.
Also,
If the valve is removed and you are only using breathers, don't you get that lovely smell of blow by in you cockpit?
Reply

Get notified of new replies

To Removed PCV Valve (Lesson Learned)





All times are GMT -4. The time now is 03:44 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