The training for the 6k tests should be pretty muchg the same training you do for your club.
If your coach is very disapointed with all results, he may have to check his training plans.
A 6k test every week seems pretty tough to me...
You will find some very interesting trainings plans on this or on the UK forum, just to name a few: Te Wolveine Plan, Pete Plan, Interactive Plan, etc.
They use to be focussed on the 2k results, but if you improve your 2k, you sure will also improve your 6k...
Regarding the 6k pacing, and if you have no other indicator test available, set yourself a realistic target (e.g. from a teammate you feel is more or less similiar to you).
Try to do an even pacing from the beginning, and speed up towards the last 2000m if you feel you've got something left in the tank.
Last 500 m full out!
You sure will scratch quite some seconds off your time just by even pacing/negative splitting instead of a "fly and die".
24-28 spm seems a realistic rate to hold for 6k.
Good luck, let us know how it goes.
yr 1966, 1,87 m, 8? kg
Be Water, My Friend!