How do you untighten the Crank Bolt?

[dswalterwi at gmail.com (Don Walter)]

I've got the engine on the engine stand and trying to figure out how
to untighten the 12 pt 19mm bolt holding the timing belt pulley.

-- 
Don Walter - Waukesha, WI
1986 1.8 16V Black Scirocco
1986 2L 16V Toronado Red Scirocco (under repair)
1988 1.8 16V Toronado Red Scirocco (sold on 3/29/04)
1984 1.8 8V Pewter Scirocco (sold years ago)
1971 Karman Ghia (sold)
1969 Karman Ghia (sold)
1969 Beetle (sold)