Crane rocker arm disassembly help
Thread Starter
TECH Senior Member
iTrader: (4)
Joined: Jul 2004
Posts: 8,092
Likes: 13
From: Little Rhody
Crane rocker arm disassembly help I have my old heads off the car and when I pulled the rockers, the studs came with them. The problem now is the jam nut and adjusting nuts are locked together. So far, I have broken four 3/16 allen wrenches and have tried jam nuts on the metric side of the stud, not luck at all. Since this will be an issue for future spring maintenance, I am seriously thinking of just returning the to stock rockers as much as I hate to.
Anyone run into this and know a sure fire solution?
Anyone run into this and know a sure fire solution?
Can you lock 2 nuts together on the threads that go into the head? Then clamp that into a bench vise. Then use a long wrench/breaker bar to break the nut/set screw side loose. I dont want to say how I know!!!!!! But I had to do that for the first ones I put in, when I first put the studs in mine. I locked the nut/ set screw that they provide for installing the studs in the wrong way. Basically way over tightening it to where you couldn't break it loose.
Thread Starter
TECH Senior Member
iTrader: (4)
Joined: Jul 2004
Posts: 8,092
Likes: 13
From: Little Rhody
Tried that, didn't work. I will try again. I may order the collet to fit my Snap-On stud removal tool for the metric thread and try that. At least I know I am not alone 
Originally Posted by vettenuts
Tried that, didn't work. I will try again. I may order the collet to fit my Snap-On stud removal tool for the metric thread and try that. At least I know I am not alone
Thread Starter
TECH Senior Member
iTrader: (4)
Joined: Jul 2004
Posts: 8,092
Likes: 13
From: Little Rhody
I have broke or rounded all the Allen wrenches I have. I ordered the Snap-On stud remover for 8mm threads so that should hold the side that goes into the head. I can then hopefully just turn the adjusting nut and break it free. Someone suggested that you grind the bottom of the allen jam nut flat to prevent this problem.
Trending Topics
Thread Starter
TECH Senior Member
iTrader: (4)
Joined: Jul 2004
Posts: 8,092
Likes: 13
From: Little Rhody
Just wanted to follow-up since I did get them apart. I bought a Snap-On stud remover for the 8mm-1.25 thread. This is a two piece tool that includes a collet (part # GC500-37) and housing (part # GC500-2). The collet threads onto the thread and then the housing is tightened onto the collet effectively clamping the threads without damage. They came right off once I had a way to hold the stud so I could simply loosen the adjusting nut.
Anyway, if you are using stud mounted rockers of any type or dealing with studs this is one of the best tools I have ever run across to remove studs.
Also, since the install is 22 lb-ft, I used the same tool (different collet, part # GC500-8) to re-install the studs into the Dart heads
Anyway, if you are using stud mounted rockers of any type or dealing with studs this is one of the best tools I have ever run across to remove studs.
Also, since the install is 22 lb-ft, I used the same tool (different collet, part # GC500-8) to re-install the studs into the Dart heads
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
