[Vwdiesel] Crank Timing Gear Question- '84 1.6NA

gary gbangs at cfl.rr.com
Wed Sep 22 13:26:52 EDT 2004

I don't recall which year they changed, but the 1.6na came with two
different styles of cranks.

One used a regular type woodruff key, and had the corresponding belt
pulley to go with it.

The other style is like you mentioned, the notch is cut into the crank,
and the belt pullet has a (anti-notch?) built into it ( or is it
wise-versa?) But you get the idea.

The cranks are interchangeable, but the respective belt pulley must be
used with its specified crank.


On Wed, 2004-09-22 at 12:00, Chuck Carnohan wrote:
> I have a JK series engine, 1.6NA that was in a wreck.  It looks like the
> timing gear key on the crank shaft was sheared resulting in a bent valve
> or two.  Anyway, I'm not familiar with this timing gear lash-up as I
> have only worked on the earlier engines with a woodruff key.  The keyway
> is on the outer lip of the crank shaft for this '84 engine.  The keyway
> points straight up at TDC (nice touch)!
> Does this gear have a special key that is separate from the gear or is
> the gear cast with a key in it?  I need to get this solved so I can get
> the engine up and running!  Any help is appreciated!
> Chuck Carnohan
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