Bad oil pump? with pictures
 

I have recently been rebuilding a 2000 s2000 I bought from a friend not too long ago with 180k miles on it. Head had starved from oil due to front allen bolt coming loose. I checked the block and bearings and it all looked good. Got a used head i just had rebuilt, bought new timing chain, seals, gaskets, etc. Taking the chance with the block and hope it all works well. Today i dropped the oil pump to inspect it and see if I need to buy a new one. The gear shaft has some play going in and out, and opened it up and saw a lot of scoring. It turned freely but wasnt smooth and would get stuck if pushed in from the play. My guess is this oil pump is trashed? Would a bad oil pump cause that allen bolt to snap and skip timing?
https://cimg4.ibsrv.net/gimg/www.s2k...d4011dfb10.jpg
https://cimg8.ibsrv.net/gimg/www.s2k...fa2128c261.jpg

Looks kinda fcuk"d to me..

I just ordered a new one. For everyone that wants to know what a bad oil pump on s2000 looks like here you go. Once i get the car running will post more on the build!

Ive got a new oem pump still in the box for sale

Did you shave the head?

It was resurfaced .004 and was within spec.