Stripped Camshaft???? - Chevy Impala SS Forum
LinkBack Thread Tools Display Modes
post #1 of 4 (permalink) Old 03-08-2019, 08:49 PM Thread Starter
Junior Member
Join Date: Dec 2010
Posts: 7
Stripped Camshaft????

Hello all
took my car to mechanic to install opti spark
he didn't know what he was doing
took me a year to educate myself on opti spark and timing
replaced it myself
Car drove wonderful over a year
Found that it was time to replace my timing cover gasket
now i can't get the crank hub on the camshaft because I fear the camshaft is stripped

Couldn't get a threaded 7-16-20 rod to screw in tight
Always has too much "wiggle room" and can not tighten with installer tool (washers and bolts)
Any help?
getochild81 is offline  
Sponsored Links
post #2 of 4 (permalink) Old 03-08-2019, 10:40 PM
Senior Member
Fred Kiehl's Avatar
Join Date: Feb 2009
Location: Largo, FL 33774
Posts: 10,723
The camshaft is hardened and tempered steel. It is nearly impossible to strip the threads. You may have the wrong size bolt.

1991 OCC 461 (.030 over 454) BBC, 3.23 posi, flash to pass, drop spindles & springs, Impala rims, Hydroboost, Recaros, MOMO/wood SW w/QR, custom wood shift knob, Pioneer DEH P77DH
1992 OCC now with 5.7 tbi, DEH P77DH
For a parts list, check
Fred Kiehl is offline  
post #3 of 4 (permalink) Old 03-09-2019, 04:46 AM
Senior Member
Join Date: Oct 2011
Location: Atlanta
Posts: 846
I am sure you mean the crankshaft, not the camshaft, because there's no hub on the cam.

The bolt hole is probably stripped and its not the end of the world. HeliCoil makes an insert kit and it works fine. It's a bitch to do with the engine in the car, but it can be done if you're careful. Ideally, remove the radiator and condenser so that you can see what you are doing and make sure the drill is straight.

1995 Caprice ERE 383, CIA long tubes, Dynomax VT's, RAISS, Kore3/Z06 brakes, 3.42 posi, Boss 338 20's, 12 way seats, Impala SS console, etc etc etc
atlantadan is offline  
post #4 of 4 (permalink) Old 03-09-2019, 11:22 AM
Senior Member
Join Date: Apr 2001
Location: Moorpark, CA
Posts: 8,347

Think you are referring to crank shaft. You can "try" a thread tap tool same size/thread pitch as hub bolt to see if you can chase the threads clean.

What may have happened is someone tried to put the hub on crank by pulling it on with the bolt. There are only a few threads the bolt would catch on with the hun just starting on the crank so not much thread grab and the first few threads in the crank will strip but the rest should be fine if this was the case

you never want to use a damper hub bolt to "pull" the hub on. Make a home made install tool using all thread rod, washers, thrust bearing and a nut

If the threads are really FU and a tap won't fix have to install a heli coil as Atlanta notes

\'96 BBB 383/T-56
BALLSS is offline  
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the Chevy Impala SS Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Similar Threads
Thread Thread Starter Forum Replies Last Post
Picking the right camshaft... JRS9C1 Engine Performance 16 09-07-2008 11:46 PM
Camshaft For 96 CAprice With L99 Metallic Monster Engine Performance 2 05-19-2008 06:27 PM
Specs On 4.3l Camshaft? BigBodyBuilder Engine Performance 4 02-18-2008 08:14 PM
where to get camshaft dowel pin bigdan Engine Performance 3 11-16-2007 09:15 AM
Stripped Oil Plug, No stripped oil pan hole jthomasma Engine Problems/Maintenance 13 03-15-2007 01:46 PM

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome