Sounds like fun 'poncho'
Yes it was!
Specially the part when you grease the balls (the ones located on the cranks side) then you cant see them while you assemble the pedal, and get out of the track. They are alive as soon as you grease!
I had to use a wood tooth pic to show them the way
EDIT: Sorry, the balls that i was talking are the ones located on the outer side of the pedal where is the lock nut adjustment.
The other ones keep still inside the pedal when you remove the axle, if you grease them they will keep in place without problems.
The spring is Nº 5.
From here: http://bernd.sluka.de/Fahrrad/Shimano/TM/