Thought I would post this for all - it is nice to be able to do when entertaining.

I bought my spring at ACE Hardware - it was #102 in the spring bin at my ACE, but that may not be the case for you. Anyway, get a spring with a long extension at one end like the one in the pictures below. You want the spring to have pretty good tension so it has enough strength to hold the nickel finger up.

1. Remove the rejector from the mech.
2. Loosen the mech mounting bolt above the 'Penny Lock Out Lever' and slip the long hook-end of the spring under mech mounting bolt and external tooth washer.
3. Tighten the bolt while holding the spring pointing down to the 4:30 to 5:00 o'clock position.
4. Make sure the spring is not interfering with any moving parts and adjust if necessary.
5. Connect the short end of the spring under the rear of the nickel finger as in the picture.

You're done!

When you want the machine to vend normally using coins, simply unhook the short end of the spring from the nickel finger leaving the long end attached under the bolt - verify the spring is still not obstructing moving parts and install the rejector back into the mech.

Picture # 1 is of the mech set for Free Vend
Picture # 2 is of the mech set for Coin Vend

Great tip!

Thanks guys!
It is easy and offered the versatility I was looking for - I always liked the way the SD coin mechs could be set for free vend with the turn of a screw.
Figured it was a good tip - hope everybody gets some use from it!

does this work on all coin op systems.  I have a Vendolator VF117?

Thnks