BEWARE I just had the same thing happen. DO NOT RUN THE CAR until you are sure ALL the parts are out. The parts from my pump went down to the bottom of the chain and chewed up the gear on the I pump. It was a major repair. Take a close look at the wobble plate on the gear. Mine got damaged and everything had to come out. Some of the gears were two piece. Mine was not and the I p8ump had to come out. Use a magnet to collect all the pieces, put them together to see how much is missing.
GOOD LUCK

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Ricali

03 C240 4matic wagon
95 300E 234,000
7 prior 240;s 5 still going
81 300sd gone
65 230sl gone
49 Studebaker Champion
90BMW convert.167,000
60 Dodge D-100