It was a PITA to get mine off. I ended up having to use vise grips to get a good grab ont the old one due to the wierd angle b/c of the hoses as you described. It finally broke free. You might get a can of "liquid wrench" and let it some some before you tackle it again.

My old primer pump just made a mess as you pumped. I love the new unit much better...

__________________
~shell
As of 2/2010:
2001 CLK55 0o\=*=/o0
13.6 @ 106mph
10K mi
1984 300SD
260K mi and going and going...
97 S600
46K miles
1991 Sentra SE-R (extremely dorked with)
www.se-r.net