Hi Steve,

I agree with you that the toothed sprocket is sometimes very unwilling.
More "brutality" risks $500 rebuilds of the pump, so make your own
judgement if you want to try this. The pump has a flange conveniently
just inside the hub of the sprocket. Using 4 big (and equal size) flat
screwdrivers in pairs you can put outward force on the hub.
Of course there will be an equally large reaction force on the internal
pump bearings, so it's risky, but it has worked in practice for me.

Cheers,
Martin

                               Steve Delasalle <sdelasal@YAHOO.COM>
                                Subject: Hints on removing diesel
                                injector pump sprocket.

                                Okay ...I just busted one 3-leg puller
                                (cheapo from Harbor Freight, I know)
                                trying to get the diesel injector pump
                                sprocket off.

                                As usual, Bentley makes it all sound
                                so simple what with all the VW tools
                                being available. In the real world
                                what do you guys do?

                                I tensioned the thing up with the
                                puller, lightly tapped the sprocket in
                                a variety if places and said nice
                                encouraging things to it ...but,
                                ping....my puller breaks!

                                Steve