Yo Uwe,
You said
Quote:
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the cam is a crane hydraulik part nr. 524421.
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also
in reference to the distributor gear.
I couldn't find the cam material on the Crane site. I
ASSUME the hydraulic flat tappet cam is cast iron and therefore it sounds as if you have the correct distributor gear material. You'd need to check with Crane directly to confirm the materials.
Unfortunately this points to other causes such as the high output
oil pump or the positon of the gear on the distributor shaft (or both!) as possible culprits.
Let us know how you proceed.
Tom