Torque Wrench Calibration

[Theodore K.]

I have two torque wrenchs. One is a newer type that has the torque breakover where it clicks when the set value is reached. The other is a long arm type where you deflect a pointer on a scale. It is the bending or deflection of the long arm that moves the pointer. It seems to read a lot different than the breakover type. Any suggetions on how to check calibration on each and any opinion on which one I should believe. I am torquing down a head and don't want to over do it either. Comments and suggestions welcome
Ted

[Joe L.]

Re: Torque Wrench Calibration

I have two torque wrenchs. One is a newer type that has the torque breakover where it clicks when the set value is reached. The other is a long arm type where you deflect a pointer on a scale. It is the bending or deflection of the long arm that moves the pointer. It seems to read a lot different than the breakover type. Any suggetions on how to check calibration on each and any opinion on which one I should believe. I am torquing down a head and don't want to over do it either. Comments and suggestions welcome
Ted

Ted-------


The beam type wrench is inherently accurate. All you have to be sure of is that the pointer is at "0" when at rest. If it's not, bend the needle so it does read "0". That's it; it's calibrated.

All other type of torque wrenches require periodic checking and calibration. So, your best bet is to send the wrench to a facility that does this for the torque wrench you have.

[Dan D.]

Re: Torque Wrench Calibration

Make sure you do not over torque the short head bolts. You can break the casting very easily. -Dan-

[Clem Z.]

Re: Torque Wrench Calibration

"clicker" type torque wrenches need to be stored with the tension backed all the way down to "0" or you will ruin the accuracy

[Larry M.]

Re: Torque Wrench Calibration

Try these:

Team Torque at www.teamtorque.com/

Or, attempt to "do it yourself" http://www.dieseldoctor.com/messageboard/data/229.html

Good luck.

Larry