[QUOTE=eightiessadies;3340464]After further reading, thanks for the links, I'm still wondering two things.
Does the timing chain need to be loosened to check for play in the timing unit,
And what tools are required to measure.


The timing chain doesn't need to be slacked or removed to check the lateral play of the timing devise. Just grab hold of it and give it a push and pull. Mine, which is actually pictured in post #3 had 2.5 mms of play, when it took out the VP. Now when ever I have a V/P off I give that timing device a quick "push pull" check.

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1985 Euro 240D 5 spd 140K
1979 240D 5 spd, 40K on engine rebuild
1994 Dodge/Cummins, 5 spd, 121K
1964 Allice Chalmers D15 tractor
2014 Kubota L3800 tractor
1964 VW bug

"Lifes too short to drive a boring car"