View Full Version : What do you torque a balancer bolt too?


1st and goal
06-26-2012, 08:06 AM
I'm replacing my underdrive pully with a stock balancer and need to know what to torque the new balancer bolt too?

The motor is a 98 LS1 that I have swapped into my 73 Z/28. Replacing as I need more voltage at idle to run my accessories as the old girl does not respond well to minimal voltage.

Thanks,
Marc

thechef
06-26-2012, 12:46 PM
if i remember correctly its 200 ft/lbs

Sy99T/A
06-26-2012, 03:00 PM
The correct procedure is with the old bolt torque ballancer to 240 ftlbs, then remove the old bolt and install a new bolt. First torque on new bolt 37 ftlbs then 140 degree of rotation

1st and goal
06-26-2012, 06:30 PM
The correct procedure is with the old bolt torque ballancer to 240 ftlbs, then remove the old bolt and install a new bolt. First torque on new bolt 37 ftlbs then 140 degree of rotation

Thanks, I'll give that a shot. :)

1989GTA
06-26-2012, 07:50 PM
Has anyone done this on an engine stand? I can see how it would be easier to torque it to 240ft-lbs with the motor installed in the car.

Sy99T/A
06-27-2012, 09:34 AM
You need the special GM tool that bolts in place of the starter motor and locks the flywheel in place

bamaballa205
07-03-2012, 12:38 AM
Has anyone done this on an engine stand? I can see how it would be easier to torque it to 240ft-lbs with the motor installed in the car.

It's a PITA to do it on a stand. I would highly recommend doing it in the car where you have a lot more leverage along with the engine not being able to move.

1989GTA
07-03-2012, 07:17 PM
It's a PITA to do it on a stand. I would highly recommend doing it in the car where you have a lot more leverage along with the engine not being able to move.

Thanks. I was considering doing just that. Torque it down some and then after the motor is in the car finish it off. It will be on a lift so the bolt should be easy enough to get to.

Gray86hatch
07-04-2012, 06:22 AM
I have these for sale makes it easy to torque to the final value

http://ls1tech.com/forums/parts-classifieds/1547001-flywheel-flexplate-holders.html

Tim