Date:         09 May 1995 23:21:23 GMT
Sender:       Vanagon Mailing List <vanagon@vanagon.com>
From:         "THOMAS CARRINGTON" <BBTSQP8@BAPLAZA.BELL-ATL.COM>
Subject:      Re: Don't Use: Click type torque wrench?

>>For some reason, throughout my repair microfiche, my manual urges again and
>>again something like:

>>Do not use inaccurate click type torque wrench

>>Every time I read that I go "Uh!" and then I wonder how inaccurate these
>>wrenches are likely to be.

Some of the aircraft repair books have torque specs that must be applied for
a period of time. Example: Lycoming head bolts: 32ft-lbs for 30 seconds.

With the old deflection beam or dial torque wrenches, you can apply a
constant force. With the click-type, once it clicks, who knows what torque
you are applying. Personally, I use the dial-indicator type. They are a bit
expensive for home use, though.

I get a kick out of a local tire chain where I buy my tires. They advertise
to hand-torque the lugs to manufacturer's specs. While watching the tire
jockeys, I noticed that they did use a click-style wrench, but continued to
turn it after the click was heard! Whoa, way accurate!

 IMHO, of course.

Tom Carrington
BBTSQP8@bell-atl.com
88 Vanagon
65 Notchback