At 13:21 8/15/99 -0700, Dana E Hager wrote:
>Anyone know where to find a torque wrench or adapter to torque the rear
>axle nut. Bentley requires 369 ft lb and the largest wrench I can find
>goes to 250 ft lb. The August Hot VWs shows an article using Kymco's
>Torque Meister (Rocky Mt.. Motorworks) and drum plate adapter but it
>does not look like it would work for a 87 Vanagon.

Bus Depot sells a flat forged wrench from EMPI that has ears for hammering
the nut off, and a half-inch square hole located (on mine) 9 cm from the
46mm, center-to-center.

The formula to calculate resulting torque with an extension is:

Where:
e = effective length of extension (distance between perpendiculars through
center of hex and center of drive hole)
l = effective length of wrench (center of drive to center of handle
Tw = Torque set on wrench
Te = Torque delivered to nut

Tw = Te * l / (l + e)     or   Te = Tw * (l + e) / l

For a 9 cm extension length, a 250# wrench would have to be shorter than 19
cm (effective) or about 7.5 in.   For an 18" wrench at 250# you'd need a
total extension length of about 8.5 in or 22 cm.  Etc.

david

David Beierl - dbeierl@ibm.net