1.6L IP Pushing fuel out Inlet Banjo

[Estacaco]

So popped in my OG pump into the car and it sucks like a champ. Any reason why it surges at idle after reving the engine? It seems to surge until it feels like quitting (surging) or I push on the pump a little bit. Put the rear bolt back on and it doesn't seem to be doing it as bad. Timing off? Or is that fourth bolt on the back of the pump by the hard lines necessary for the pump to operate properly?

[ORCoaster]

All bolts in for proper operation.  Vibration is just enough it seems to make it Wonkey.

[libbydiesel]

Now that you have the pump out and it's all fresh in your memory, it's a good time to dig into it and swap that piece over.  I would think it would take an hour or so.

[Estacaco]

Yeah, you'd think that but this would only be my second time tearing it down. Maybe an hour to get to that ring. Putting it back together can be a longer process. That's really the part ?I'm not looking forward to. Those damn throttle springs. I kinda just dove in head first into the rebuild. Not heading the warnings I got from all the shops I called asking about Bosch VE pump parts.

Right now I'm just happy to drive it since it's been sitting on the side lines or limping a long for the past 2 weeks. I'll probably pull the pump apart this weekend, Any other mods besides governer and 1.9 cam plate I can do while I have it apart again? Something about a boost pin I keep reading?

Thanks for the help guys.