>  so whats the easiest way to pull the piston pin from a 1.9L out
>that small water pump hole??
>

The only thing I would add to the notes below is to heat the cylinder
bottom a bit with a propane torch if the pin is stubborn....

http://gerry.vanagon.com/cgi-bin/wa.exe?A2=ind0505b&L=vanagon&F=&S=&P=49066

If you cannot get the circlip off within 5 minutes you need better
snap ring pliers.  You only need to remove one circlip per piston to
get the pin out.