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

valve/lifter adjustment

Thread Tools
 
Search this Thread
 
Old Sep 10, 2013 | 10:22 PM
  #1  
gcusmano74's Avatar
gcusmano74
Thread Starter
Drifting
 
Joined: Mar 2011
Posts: 1,886
Likes: 9
Default valve/lifter adjustment

Is there any reason I couldn't adjust the hydraulic lifters at each cylinder's TDC? Chevrolet says do half the valves at #1 TDC and the rest at #6 TDC.
I was going to leak down the engine and figured I would do both at the same time.
Thanks in advance.
Reply
Old Sep 11, 2013 | 12:16 AM
  #2  
my 76 ray's Avatar
my 76 ray
Melting Slicks
15 Year Member
 
Joined: Mar 2007
Posts: 2,520
Likes: 11
From: Hinckley OH
Default

Both the intake and the exhaust valve are closed at TDC. The reason Chevrolet says to do the ones they say when #1 is at TDC is that both the valves on those cylinders are also closed. Likewise for when #6 is at TDC.

Keep in mind that all pistons are at TDC twice, once on the compression stroke and once on the exhaust stroke. You must adjust the rockers/lifters when the piston is on the compression stroke.

So, yes, you can adjust then at each cylinder's TDC as long as it is on the compression stroke.
Reply
Old Sep 11, 2013 | 03:35 PM
  #3  
dochorsepower's Avatar
dochorsepower
Drifting
10 Year Member
 
Joined: Sep 2010
Posts: 1,412
Likes: 50
From: Laguna Niguel California
Default

It saves you time, only having to adjust at two rotation positions instead of eight.
Reply
Old Sep 11, 2013 | 03:52 PM
  #4  
1977L48's Avatar
1977L48
Pro
 
Joined: Sep 2012
Posts: 600
Likes: 6
From: Key West Florida
Default

I always adjust what valves are closed (to be sure of this I adjust the ones opposite of the valve that is opening) and then rotate 360 and adjust the rest.
Reply

Get notified of new replies

To valve/lifter adjustment





All times are GMT -4. The time now is 02:08 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