I just removed and replaced the seals on #1 & 2 injector
Black death was lots of it all over the best method I found to remove it was with carb cleaner
and lots of cut up old tee shirts screwdriver,stifwire about 12in long,pair of surgical pliers to hold the tee shirt swabs.
First cleaned up the black mess than filled the well around the injector's with carb cleaner
let it soak in real good. Than I loosened the hold down started the van and in about 5 min.
#2 popped up detached the fuel lines and out it came. cleaned it up with carb cleaner using
a SS bowl so I could catch the carb cleaner and than use a paint brush to help apply the cleaner worked good. The injector well was cleaned using a dowel pin wrapped with tee shirt
soaked with carb cleaner worked good. The seat I used a dowel same size as the seat hole
with a piece of 400 Wet dry paper glued to it shined up like new.
# 1 injector wouldn't pop up with motor running had to use a puller it was the one that
Dennis at Lindenengeering recommended it was the type that you must take the top of the
injector off to use it but it did the job great.(I did reuse my injector)
Hope this will help.