Hi all.

Sorry for asking this here but I'm leaving on a trip soon so need to
check this detail.

This is for a torque to yield bolt holding the belt drive sprocket to
crankshaft on an ABA Jetta 2.0 gas engine in a Vanagon.

I doubt the crank threads got damaged but would torquing this bolt too
high damage (deform by pulling) the threads in crankshaft? If so, will
the bolt work its' way out over time?

The crank threads looked ok, I installed a new bolt. Since the over
torqued bolt actually narrowed a bit about 1/2 way down the threads,
it's likely the only thing that got damaged. The woodruff key and
keyway look ok.

Lesson: check your new torque wrench before you use it!

The sprocket bolt was on REALLY tight. It took a 2' long extension on
my breaker bar to break the bolt loose. I have an electric impact gun
but no 12 point impact socket. To keep the crank from turning I put
the van in gear, set the e-brake and I attempted to hold the pulley
with a belt type pulley wrench. I used my new torque wrench for this
job. As I kept turning the bolt, I felt no click on the wrench. Since
the bolt was so hard to remove, I keep reefing pretty hard on this
bolt then came to my senses. Testing the wrench on my bench, still no
click. After zeroing the dial and resetting it to 66 ft lbs, the click
worked.

Neil.

--
Neil n

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