81' 300cd upgrade fuel primer pump
 

i picked up the the bosch upgraded primer pump... i need some guidance on removing current "hand" primer pump as it is impossible(?) to access the primer pump itself, right and left sides are just as difficult to reach with the tools i have... without knowing any better i'd square all the fuel in the tank with have run out better i could figure out what to do next if i just started removing stuff.
what can anyone tell me about this? thanks.

I use a pair of vice grips, they're usually on there pretty tight, so have your spinach first.