Quoted from zucot:Are you talking about the gap between the flipper rod and the bushing? The bushing itself gets tightened right next to the playfield doesnt it?
You don't want the crank assembly binding with the bushing.
I know this is a williams flipper assembly but it should be the same.
The original Williams instructions show the tool being used between the Crank and the Flipper Bushing. It is much easier to put the tool above the playfield, between the Flipper and the Bushing. That way the tool is far from the under playfield clutter. If it is your first time adjusting flippers, you can rubber-band the tool to the flipper so you don't have to worry about it falling off.
Flipper Gauage https://www.marcospecialties.com/control/keywordsearch?SEARCH_STRING=03-8194
Most credit cards are about .7mm thick. Cut a notch in your card and make your own tool. Don't cut through the magnetic strip or the embossed numbers, if you ever want to use the card again.
**Taken from Vid's Guide on rebuilding flippers.
Below I'm showing the Gap Tool on the Flipper Bushing NOT installed in the playfield, just for clarity.
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