Generation III Internal Engine 1997-2006 LS1 | LS6
Sponsored by:
Sponsored by:

Shiney Pushrod Tip?

Thread Tools
 
Search this Thread
 
Old Mar 16, 2008 | 10:51 PM
  #1  
jdb8805's Avatar
Thread Starter
Teching In
 
Joined: Nov 2001
Posts: 26
Likes: 0
From: Texas City, TX ,USA
Default Shiney Pushrod Tip?

Just finished a head install and put new lifters in with the hope of curing my tapping noise

Should the tips of the pushrods that are against the rockers be shiney? Mine were - does that mean the preload (too much or too little?) was incorrrect or the lifters werent working?

Tapping still there

Going to recheck the rocker arm torque is 22-24 ft-lb tomorrow, but not sure what else to do. What else could cause tapping louder on driver's side?
Reply
Old Mar 17, 2008 | 03:23 AM
  #2  
DaddySS's Avatar
TECH Addict
 
Joined: Dec 2001
Posts: 2,907
Likes: 1
From: Bergen County, NJ
Default

What kind of lifters? What did you set the preload to? What cam? The ends of the pushrods should be shiney, no relation to preload.
Reply
Old Mar 17, 2008 | 08:52 AM
  #3  
brad8266's Avatar
TECH Senior Member
iTrader: (23)
 
Joined: Aug 2005
Posts: 8,797
Likes: 0
From: Watertown, NY
Default

A rocker that is losing its needle bearings and loosening up could cause the tap. Could also just be a simple exhaust leak.
Reply
Old Mar 17, 2008 | 09:39 AM
  #4  
jdb8805's Avatar
Thread Starter
Teching In
 
Joined: Nov 2001
Posts: 26
Likes: 0
From: Texas City, TX ,USA
Default

I think you are right about the needle bearings in the rocker. Could I look at the rocker and tell ?

I had them all off and they all felt the same. But I didn't look for anything specific. I'm going to retorque them today, so I can take a look at them.
Reply
Old Mar 17, 2008 | 09:42 AM
  #5  
brad8266's Avatar
TECH Senior Member
iTrader: (23)
 
Joined: Aug 2005
Posts: 8,797
Likes: 0
From: Watertown, NY
Default

If only a few needles are out you might not be able to tell by looking while installed. You can feel the slop in them when they dont have bearings though.
Reply
Old Mar 17, 2008 | 11:40 AM
  #6  
99ssleeper's Avatar
12 Second Club
iTrader: (98)
 
Joined: Oct 2002
Posts: 2,036
Likes: 2
From: Minnesota
Default

Originally Posted by brad8266
If only a few needles are out you might not be able to tell by looking while installed. You can feel the slop in them when they dont have bearings though.
The needles cant come out unless the side caps are broken out and missing.

A brand new in the package stock rocker arm was pretty sloppy but all the needle bearing were there. I though it was strange that they were so loose.

Just check the side caps for cracks.
Reply




All times are GMT -5. The time now is 04:56 AM.

story-0
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-09 14:55:56


VIEW MORE
story-1
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-2
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-3
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-4
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-5
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-6
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-7
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-8
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-9
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE