2002 745i n62 oil pump chain tensioning

[47162rallenby]

Hello, I am in project replacing timing chain guides on 2002 BMW 745i 4.4 liter, N62 engine still in the car. I noticed the oil pump chain in quite loose. Does anyone know how to adjust the oil pump chain tension, without removing the oil pan?

[47162rallenby]

Update: a master tech told me the chains have a bit of slack so this is normal.

[Bill M.]

Good Day.
I have a 07 X5 4.8L. Timing Chains noisy and seems to be stretched chains and or tensioners worn. I could use advice on during this work while engine is in car. I liked your pictures 47162rallenby above. Can the oil pump chain be removed as shown in your pictures, or does the pump gear need removed fist and how to do that?
thanks in advance.

[Bill M.]

correction, I believe I have problems with my 07 X5 4.8L timing chains stretched and chain guides worn - noisy and different rpms/speeds and can hear noise through oil fill cap.
thanks again