OOPS Theaded Push Rod
Thread Starter
Advanced
Joined: Mar 2005
Posts: 68
Likes: 0
From: Plantation 1990 L98 383 Stroker Florida
OOPS Theaded Push Rod
90 L98 While I was chasing the threads with tap 16 x 3/8 I accidentally went to deep and nicked a push rod about 2" below where it tenters the head. It just barely shows the threads on the side. I plan on putting everything back togeather without replacing it. am I wrong?
Team Owner
Joined: Sep 2003
Posts: 20,179
Likes: 673
From: Freedom is never more than one generation away from extinction.
St. Jude '03 thru '24
Originally Posted by Muffin
IMHO yes. Push rods take a beating and need all the help they can get. Besides a single push rod isn't expensive.
Maybe some one has an old set lying around.
I would at least polish out the area effected. Use a piece of wetdry sand paper 320-600 and remove only the scratch. Blend the area out to avoid creating a rut.
If you leave the "nick" this will allow a stress (riser) area to start cracking and ultimately cause the pushrod to break.
An example of not removing a stress riser is my experience with an aluminum wheel on my daily driver. Years ago the tire changer wacked the wheel against his equipment. The nick was about 1/16" deep on the edge of the inside bead . Right where you hammer on wheel weights. Years and about 60K miles later the tire started slow leaking. Turned out the stress riser grew to a crack that propagated completely through to the bead area and was now following the bead. Major disaster waiting to happen!
Thread Starter
Advanced
Joined: Mar 2005
Posts: 68
Likes: 0
From: Plantation 1990 L98 383 Stroker Florida
OK I am going to replace the Push Rod. Will I need to replace all or can I replace just one. From memory I will need to remove Valve cover Loosen Rocker arm on the effected rod and just pull it out then replace rod and rocker and tighten down is this correct?
Safety Car
Joined: Sep 2003
Posts: 3,599
Likes: 24
From: Orange County NY
St. Jude Donor '10-'11-'12-'13
Originally Posted by circlegroup
OK I am going to replace the Push Rod. Will I need to replace all or can I replace just one. From memory I will need to remove Valve cover Loosen Rocker arm on the effected rod and just pull it out then replace rod and rocker and tighten down is this correct?
This thread should help when it comes time to adjust:
http://forums.corvetteforum.com/show...97&forum_id=48
Safety Car
Joined: Jul 2001
Posts: 4,871
Likes: 15
From: Detroit's West Side MI
Crap, I knew I should have held on to all my old components when I did my top end.
I had 32 pushrods I could have given you. I'll see if I missed one in the cleanup, but I doubt it.
Sorry...
I had 32 pushrods I could have given you. I'll see if I missed one in the cleanup, but I doubt it.
Sorry...
Drifting
Joined: May 2003
Posts: 1,730
Likes: 1
From: Charlotte NC
St. Jude Donor '05
Big time, You just made a spot for a crack to propogate...
I wonder if some pushrods are only case hardend.. I know modern high performance pushrods are heat treated.. but what aboutthe old ones?
I wonder if some pushrods are only case hardend.. I know modern high performance pushrods are heat treated.. but what aboutthe old ones?
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Melting Slicks
Joined: Feb 2002
Posts: 2,699
Likes: 2
From: The Black Hole LA
I've got a full set of hardenned pushrods I was about to list in the parts for sale section. They are made by Lingenfelter and are stock length. They are brand new with no time one them. I had to get my cam reground to a smaller base circle for clearance reasons so I now need a longer set. I was going to ask $30 shipped, which will save you roughly $20 after shipping if you were to buy from them, you can go to their website and check them out, they are listed. Let me know if you are interested. hz900@yahoo.com
BTW it is my understanding(read novice) that if you ever go to roller rockers you'll need hardenned pushrods anyway.
BTW it is my understanding(read novice) that if you ever go to roller rockers you'll need hardenned pushrods anyway.
Thread Starter
Advanced
Joined: Mar 2005
Posts: 68
Likes: 0
From: Plantation 1990 L98 383 Stroker Florida
Thanks for all your help went to the place that is cleaning my intake and they gave me the pushrod to replace the one that I destroyed. In looking closer at it I also bent it.