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

Adjusting Roller Rockers...

Thread Tools
 
Search this Thread
 
Old Sep 22, 2004 | 06:30 PM
  #1  
TankerVette's Avatar
TankerVette
Thread Starter
Racer
 
Joined: May 2003
Posts: 304
Likes: 1
From: beaverton oregon
Default Adjusting Roller Rockers...

Got all my work done, thing sounds mean... Can't wait for the 200 mile break in to be done...

I have heard of 2 ways to adjust the rockers, one with the car running and one with it not. I want to do it while its running, but...

How do I prevent oil from getting all over the place?
Reply
Old Sep 22, 2004 | 06:55 PM
  #2  
scorp508's Avatar
scorp508
Team Owner
Supporting Lifetime Gold
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Mar 2000
Posts: 83,383
Likes: 87
From: Boston, MA
Default

It really depends on the rockers. My comp cam pro mags aren't messy at all to do it while running. What you can do though is cut out a piece of cardboard and sit it in the outter edge of the cylinder head to catch anything flown at you. I bought a set of rocker clips that are made specifically for doing this job.
Reply
Old Sep 22, 2004 | 06:57 PM
  #3  
geezel's Avatar
geezel
Burning Brakes
15 Year Member
 
Joined: Nov 2003
Posts: 1,234
Likes: 5
From: Herriman UT
Default

My rollers didn't throw much oil at idle. A piece of cardboard standing up on the outboard side of heads is all you should need. (6" tall is plenty)
Reply
Old Sep 22, 2004 | 07:25 PM
  #4  
CFI-EFI's Avatar
CFI-EFI
Race Director
10 Year Member
 
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
Default

Most roller rockers have the oil squirt hole aimed at the fulcrum (near the stud) rather than straight up to the top of the valve covers, like the stock stamped steel rockers. Follow the advice from above to minimize the mess. Otherwise, adjusting roller rockers is identical to adjusting the stockers.

RACE ON!!!
Reply
Old Sep 22, 2004 | 07:29 PM
  #5  
TankerVette's Avatar
TankerVette
Thread Starter
Racer
 
Joined: May 2003
Posts: 304
Likes: 1
From: beaverton oregon
Default

thanks, guys...
Reply
Old Sep 22, 2004 | 07:33 PM
  #6  
JAKE's Avatar
JAKE
Le Mans Master
10 Year Member
 
Joined: Feb 2000
Posts: 9,715
Likes: 27
From: Kempner Texas
Default

Originally Posted by CFI-EFI
Most roller rockers have the oil squirt hole aimed at the fulcrum (near the stud) rather than straight up to the top of the valve covers, like the stock stamped steel rockers. Follow the advice from above to minimize the mess. Otherwise, adjusting roller rockers is identical to adjusting the stockers.

RACE ON!!!
With the exception that roller rockers usually call for poly-lock adjusting nuts, inwhich case you'd need an Allen wrench to tighten the set screw.

You'll' need to check for drip tab and baffle clearance too.

Jake
Reply
Old Sep 22, 2004 | 08:13 PM
  #7  
comp's Avatar
comp
Team Owner
10 Year Member
 
Joined: Sep 2003
Posts: 88,393
Likes: 2
From: eville in
Default

how do you like them
Reply
Old Sep 22, 2004 | 08:24 PM
  #8  
CFI-EFI's Avatar
CFI-EFI
Race Director
10 Year Member
 
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
Default

Originally Posted by JAKE
With the exception that roller rockers usually call for poly-lock adjusting nuts, inwhich case you'd need an Allen wrench to tighten the set screw.

You'll' need to check for drip tab and baffle clearance too.

Jake


Absolutely correct. I was totally spacing the poly-locks. All I was referring to was the method and point of adjustment.

To help make sure the Allen lock screws are tight, once you find the point you want to lock them at, back off the adjusting nut about 1/16th of a turn. Screw the lock nut down until it contacts the stud. Then turn the adjusting nut wrench and the Allen wrench, simultaneously that last 1/16th of a turn. It is difficult to get that Allen lock nut tight enough, with only the little Allen wrench. Don't over do it.

RACE ON!!!
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

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

 Michael S. Palmer
story-1

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

 Joe Kucinski
story-2

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

 Joe Kucinski
story-3

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

 Verdad Gallardo
story-4

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-5

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-6

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-7

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-8

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-9

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
Old Sep 22, 2004 | 08:53 PM
  #9  
JAKE's Avatar
JAKE
Le Mans Master
10 Year Member
 
Joined: Feb 2000
Posts: 9,715
Likes: 27
From: Kempner Texas
Default

Originally Posted by CFI-EFI


To help make sure the Allen lock screws are tight, once you find the point you want to lock them at, back off the adjusting nut about 1/16th of a turn. Screw the lock nut down until it contacts the stud. Then turn the adjusting nut wrench and the Allen wrench, simultaneously that last 1/16th of a turn. It is difficult to get that Allen lock nut tight enough, with only the little Allen wrench. Don't over do it.

RACE ON!!!
Yep, that's how I do it too.

Jake
Reply

Get notified of new replies

To Adjusting Roller Rockers...





All times are GMT -4. The time now is 01:41 PM.

story-0
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-1
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-2
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-3
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
story-4
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-5
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-6
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-7
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-8
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-9
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE