Franko6
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The Bentley book gives a complicated and problematic method for setting the PD injector clearances. The method is to use a dial indicator mounted onto the rocker, then rotate the engine until the full depth of the stroke is reached. Screw in the adjustor screw until it bottoms out. Then back it out 180 degrees. Tighten the ball screw lock nut to 24 ft lbs. VW did standardize the setting for all PD motors for a 180 degree setting.
The problem is, there is no decent place to attach a dial indicator's bolt-on or magnetic mount.
The following pictures show how to do the operation with no dial indicator.
this is the position of the cam with the #4 injector rocker fully depressed, side and top view:
The injector is pressed to full depth when the top of the INTAKE valve cam lobe is aligned with the center of the injector lobe roller. Note that for each cylinder, the intake lobes are located across the head e-i-e-i-i-e-i-e (i=intake, e=exhaust)
This makes adjusting the injectors a very simple 'eyeball' method.
The problem is, there is no decent place to attach a dial indicator's bolt-on or magnetic mount.
The following pictures show how to do the operation with no dial indicator.
this is the position of the cam with the #4 injector rocker fully depressed, side and top view:
The injector is pressed to full depth when the top of the INTAKE valve cam lobe is aligned with the center of the injector lobe roller. Note that for each cylinder, the intake lobes are located across the head e-i-e-i-i-e-i-e (i=intake, e=exhaust)
This makes adjusting the injectors a very simple 'eyeball' method.
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