ballancer bolt
#3
Kleeborp the Moderator™
iTrader: (11)
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The stock bolt is a torque-to-yield design - once they've been properly torqued down, they should not be reused. I know some people have, but it isn't the right way to do it.
ARP makes a balancer bolt that can be reused (it is not a torque-to-yield design), but costs a fair amount more than a new stock bolt from GM.
ARP makes a balancer bolt that can be reused (it is not a torque-to-yield design), but costs a fair amount more than a new stock bolt from GM.
#4
TECH Senior Member
iTrader: (4)
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Do not throw it away it is used as part of the re-installation tightening sequence. You will first need an installation tool to push the damper back on the crank until it bottoms. The old bolt is then installed, tightened to 240 lb-ft and removed. Next you measure depth of the crank snout and if it is OK the new bolt is installed, tightened to 37 lb-ft and then rotated an additional 140 degrees.