campagnolo 980 rear mech

[trammy8]

Can't find a B screw adjustment on this type of rear mech. How is it done please.
Worked out the correct chain length but the jockey wheel was too close to the freewheel???

 

[Sharky]

Is it on all sprockets/chain rings?
What are the teeth numbers?

 

[Paulus]

From this video it doesn't look like there is one.

View: https://youtu.be/PydlDYHLZTs?si=mNQC2IWS8ZdVHqrH

Are you sure the chain is not too long by a link or two?

 

[Paulus]

Can you post some photos of the mech, hanger and chain, plus chain rings?

 

[Ajax Bay]

I note the OP has not been back for 44 hours, since posting.
I would like to know (as @Sharky) what the cassette is (ie 13-27). Is the 'too closeness' of the guide pulley teeth to the sprocket an issue on all sprockets, or what?